Muslim Estimate Counties (2010) [ Metro Areas | States ]
  QuickLists > U.S. Religious Traditions > Islam
Search QuickLists:

Using data from the 1980-2010 Religious Congregations and Membership Studies, this list ranks U.S. counties on the highest total number of adherents and the highest percent of the population who are Muslim. You can sort the list by clicking on the column headings.

Congregational "Adherents" include all full members, their children, and others who regularly attend services. "Percent" is the percentage of the total population that belongs to that denomination. Note: Adherents are sometimes residents of a county different than the location of their congregation.

[ More information on the data source ]

Complete List

Ranking County   [Download CSV]AdherentsPercent
216 Ada County, Idaho
924
0.24
226 Adams County, Colorado
616
0.14
131 Alachua County, Florida
2,794
1.13
78 Alameda County, California
29,941
1.98
102 Albany County, New York
4,567
1.5
157 Albany County, Wyoming
308
0.85
63 Alexandria city, Virginia
3,436
2.45
199 Allegany County, Maryland
308
0.41
193 Allegheny County, Pennsylvania
5,822
0.48
209 Allen County, Indiana
1,108
0.31
183 Allen County, Ohio
616
0.58
208 Anchorage Municipality, Alaska
924
0.32
240 Anderson County, South Carolina
--
--
211 Androscoggin County, Maine
308
0.29
55 Angelina County, Texas
2,541
2.93
219 Anne Arundel County, Maryland
1,116
0.21
221 Anoka County, Minnesota
616
0.19
85 Arapahoe County, Colorado
10,616
1.86
95 Arlington County, Virginia
3,436
1.65
183 Ashland County, Ohio
308
0.58
193 Athens County, Ohio
308
0.48
43 Atlantic County, New Jersey
9,422
3.43
186 Baltimore city, Maryland
3,414
0.55
125 Baltimore County, Maryland
9,696
1.2
193 Bannock County, Idaho
400
0.48
211 Barnstable County, Massachusetts
616
0.29
174 Barron County, Wisconsin
308
0.67
200 Bartholomew County, Indiana
308
0.4
228 Bartow County, Georgia
120
0.12
159 Bay County, Florida
1,397
0.83
193 Beaver County, Pennsylvania
812
0.48
96 Bell County, Texas
5,084
1.64
226 Benton County, Arkansas
308
0.14
42 Benton County, Mississippi
308
3.53
204 Benton County, Oregon
308
0.36
194 Benton County, Washington
800
0.46
188 Bergen County, New Jersey
4,799
0.53
223 Berkeley County, South Carolina
308
0.17
220 Berks County, Pennsylvania
812
0.2
213 Bernalillo County, New Mexico
1,808
0.27
77 Berrien County, Michigan
3,126
1.99
126 Bexar County, Texas
20,456
1.19
187 Bibb County, Georgia
837
0.54
171 Black Hawk County, Iowa
924
0.7
177 Blair County, Pennsylvania
812
0.64
146 Blue Earth County, Minnesota
616
0.96
88 Bolivar County, Mississippi
616
1.8
177 Boone County, Kentucky
766
0.64
203 Boone County, Missouri
600
0.37
120 Boone County, West Virginia
308
1.25
214 Bossier Parish, Louisiana
308
0.26
226 Boulder County, Colorado
400
0.14
135 Boyle County, Kentucky
308
1.08
132 Branch County, Michigan
500
1.11
97 Brazoria County, Texas
5,084
1.62
116 Brazos County, Texas
2,541
1.3
165 Brevard County, Florida
4,191
0.77
223 Bristol County, Massachusetts
924
0.17
58 Bronx County, New York
38,506
2.78
146 Brookings County, South Dakota
308
0.96
200 Broome County, New York
800
0.4
139 Broward County, Florida
18,176
1.04
228 Brown County, Wisconsin
308
0.12
205 Buchanan County, Missouri
308
0.35
208 Bucks County, Pennsylvania
2,026
0.32
234 Buncombe County, North Carolina
150
0.06
206 Burke County, North Carolina
308
0.34
202 Burleigh County, North Dakota
308
0.38
90 Burlington County, New Jersey
7,770
1.73
169 Butler County, Missouri
308
0.72
187 Butler County, Ohio
2,000
0.54
191 Butte County, California
1,109
0.5
234 Cabell County, West Virginia
60
0.06
213 Cache County, Utah
308
0.27
220 Caddo Parish, Louisiana
508
0.2
224 Calcasieu Parish, Louisiana
308
0.16
214 Calhoun County, Alabama
308
0.26
8 Calhoun County, Florida
1,397
9.55
46 Calhoun County, Iowa
308
3.19
205 Calvert County, Maryland
308
0.35
80 Camden County, New Jersey
9,970
1.94
178 Cameron County, Texas
2,542
0.63
213 Campbell County, Virginia
150
0.27
228 Cape Girardeau County, Missouri
90
0.12
240 Carroll County, Georgia
--
--
185 Carson City, Nevada
308
0.56
176 Carter County, Oklahoma
308
0.65
219 Cass County, North Dakota
308
0.21
83 Cattaraugus County, New York
1,522
1.89
240 Cayuga County, New York
--
--
214 Centre County, Pennsylvania
400
0.26
171 Cerro Gordo County, Iowa
308
0.7
96 Champaign County, Illinois
3,298
1.64
219 Charles County, Maryland
308
0.21
214 Charleston County, South Carolina
924
0.26
155 Charlotte County, Florida
1,397
0.87
4 Charlotte County, Virginia
1,718
13.65
15 Charlottesville city, Virginia
3,436
7.9
217 Chatham County, Georgia
600
0.23
131 Chautauqua County, New York
1,522
1.13
84 Chemung County, New York
1,662
1.87
101 Chesapeake city, Virginia
3,436
1.55
222 Chester County, Pennsylvania
913
0.18
67 Chesterfield County, Virginia
7,436
2.35
221 Chittenden County, Vermont
300
0.19
234 Clark County, Nevada
1,084
0.06
215 Clark County, Ohio
348
0.25
233 Clark County, Washington
308
0.07
176 Clarke County, Georgia
762
0.65
240 Clarke County, Mississippi
--
--
168 Clay County, Florida
1,397
0.73
198 Clay County, Missouri
924
0.42
201 Clayton County, Georgia
1,000
0.39
235 Clermont County, Ohio
100
0.05
228 Cleveland County, Oklahoma
308
0.12
178 Clinton County, Iowa
308
0.63
86 Clinton County, New York
1,522
1.85
240 Coahoma County, Mississippi
--
--
182 Cobb County, Georgia
4,087
0.59
229 Coconino County, Arizona
150
0.11
199 Cole County, Missouri
308
0.41
240 Coles County, Illinois
--
--
197 Collier County, Florida
1,397
0.43
54 Collin County, Texas
22,994
2.94
211 Comanche County, Oklahoma
358
0.29
147 Contra Costa County, California
9,980
0.95
35 Cook County, Illinois
201,152
3.87
208 Craighead County, Arkansas
308
0.32
240 Craven County, North Carolina
--
--
227 Crawford County, Kansas
50
0.13
196 Creek County, Oklahoma
308
0.44
207 Cumberland County, Maine
924
0.33
148 Cumberland County, New Jersey
1,474
0.94
227 Cumberland County, North Carolina
408
0.13
143 Cumberland County, Pennsylvania
2,326
0.99
214 Cuyahoga County, Ohio
3,342
0.26
201 Dakota County, Minnesota
1,540
0.39
103 Dakota County, Nebraska
308
1.47
233 Dallas County, Alabama
30
0.07
41 Dallas County, Texas
84,256
3.56
187 Dane County, Wisconsin
2,616
0.54
13 Danville city, Virginia
3,436
7.98
154 Dauphin County, Pennsylvania
2,356
0.88
161 Davidson County, Tennessee
5,080
0.81
208 Daviess County, Kentucky
308
0.32
238 Davis County, Utah
50
0.02
118 Dawson County, Nebraska
308
1.27
85 DeKalb County, Georgia
12,885
1.86
48 DeKalb County, Illinois
3,298
3.14
190 Delaware County, Indiana
600
0.51
47 Delaware County, New York
1,522
3.17
160 Delaware County, Pennsylvania
4,565
0.82
127 Denton County, Texas
7,826
1.18
192 Denver County, Colorado
2,924
0.49
174 District of Columbia, District of Columbia
4,032
0.67
210 Doņa Ana County, New Mexico
618
0.3
98 Dougherty County, Georgia
1,524
1.61
183 Douglas County, Georgia
762
0.58
212 Douglas County, Kansas
308
0.28
153 Douglas County, Nebraska
4,616
0.89
211 Douglas County, Oregon
308
0.29
207 Dubuque County, Iowa
308
0.33
18 DuPage County, Illinois
59,821
6.52
166 Durham County, North Carolina
2,004
0.75
66 Dutchess County, New York
7,044
2.37
174 Duval County, Florida
5,787
0.67
205 East Baton Rouge Parish, Louisiana
1,532
0.35
198 Eau Claire County, Wisconsin
418
0.42
187 Edgecombe County, North Carolina
308
0.54
180 El Dorado County, California
1,109
0.61
235 El Paso County, Colorado
300
0.05
231 El Paso County, Texas
700
0.09
135 Ellis County, Kansas
308
1.08
1 Emporia city, Virginia
1,718
28.99
86 Erie County, New York
16,961
1.85
176 Erie County, Pennsylvania
1,826
0.65
148 Escambia County, Florida
2,794
0.94
232 Essex County, Massachusetts
616
0.08
51 Essex County, New Jersey
23,743
3.03
182 Etowah County, Alabama
616
0.59
240 Fairbanks North Star Borough, Alaska
--
--
25 Fairfax County, Virginia
50,108
4.63
185 Fairfield County, Connecticut
5,172
0.56
236 Faulkner County, Arkansas
50
0.04
212 Fayette County, Georgia
300
0.28
222 Fayette County, Kentucky
533
0.18
182 Fayette County, Pennsylvania
812
0.59
158 Finney County, Kansas
308
0.84
203 Florence County, South Carolina
508
0.37
199 Floyd County, Indiana
308
0.41
164 Floyd County, Kentucky
308
0.78
151 Ford County, Kansas
308
0.91
160 Forrest County, Mississippi
616
0.82
197 Forsyth County, North Carolina
1,516
0.43
50 Fort Bend County, Texas
17,794
3.04
216 Franklin County, Kentucky
120
0.24
112 Franklin County, Ohio
15,578
1.34
227 Frederick County, Maryland
308
0.13
28 Frederick County, Virginia
3,436
4.39
209 Fresno County, California
2,868
0.31
109 Fulton County, Georgia
12,727
1.38
206 Gallatin County, Montana
308
0.34
60 Galveston County, Texas
7,626
2.62
225 Gaston County, North Carolina
308
0.15
89 Geary County, Kansas
616
1.79
61 Genesee County, Michigan
11,029
2.59
129 Geneva County, Alabama
308
1.15
190 Gloucester County, New Jersey
1,474
0.51
2 Goochland County, Virginia
3,436
15.82
240 Grand Forks County, North Dakota
--
--
76 Grayson County, Texas
2,541
2.1
229 Greene County, Missouri
308
0.11
237 Greene County, Ohio
50
0.03
226 Greenville County, South Carolina
616
0.14
160 Guilford County, North Carolina
3,984
0.82
134 Gwinnett County, Georgia
8,759
1.09
9 Halifax County, Virginia
3,436
9.48
157 Hall County, Georgia
1,524
0.85
204 Hamilton County, Indiana
1,000
0.36
3 Hamilton County, New York
761
15.74
219 Hamilton County, Ohio
1,724
0.21
177 Hamilton County, Tennessee
2,156
0.64
219 Hampden County, Massachusetts
994
0.21
230 Hampshire County, Massachusetts
160
0.1
24 Hampton city, Virginia
6,872
5
240 Hardin County, Kentucky
--
--
240 Hardin County, Ohio
--
--
56 Harris County, Texas
117,148
2.86
229 Harrison County, Mississippi
200
0.11
195 Harrison County, West Virginia
308
0.45
17 Harrisonburg city, Virginia
3,436
7.02
206 Hartford County, Connecticut
3,056
0.34
97 Hays County, Texas
2,542
1.62
219 Hendricks County, Indiana
308
0.21
174 Hennepin County, Minnesota
7,760
0.67
27 Henrico County, Virginia
13,744
4.48
240 Henry County, Alabama
--
--
161 Hernando County, Florida
1,397
0.81
144 Hidalgo County, Texas
7,626
0.98
107 Highlands County, Florida
1,397
1.41
92 Hillsborough County, Florida
20,970
1.71
207 Hillsborough County, New Hampshire
1,308
0.33
207 Hinds County, Mississippi
808
0.33
175 Hoke County, North Carolina
308
0.66
237 Honolulu County, Hawaii
308
0.03
229 Horry County, South Carolina
308
0.11
240 Houghton County, Michigan
--
--
180 Houston County, Alabama
616
0.61
187 Houston County, Georgia
762
0.54
203 Howard County, Indiana
308
0.37
229 Howard County, Maryland
308
0.11
45 Hudson County, New Jersey
21,042
3.32
234 Hunt County, Texas
50
0.06
228 Hunterdon County, New Jersey
150
0.12
150 Iberville Parish, Louisiana
308
0.92
231 Imperial County, California
150
0.09
142 Indian River County, Florida
1,397
1.01
151 Indiana County, Pennsylvania
812
0.91
106 Ingham County, Michigan
4,050
1.44
221 Iredell County, North Carolina
308
0.19
70 Isabella County, Michigan
1,563
2.22
21 Jackson County, Illinois
3,298
5.48
201 Jackson County, Missouri
2,614
0.39
22 James City County, Virginia
3,436
5.13
235 Jasper County, Missouri
60
0.05
190 Jefferson County, Alabama
3,348
0.51
200 Jefferson County, Arkansas
308
0.4
230 Jefferson County, Colorado
558
0.1
156 Jefferson County, Kentucky
6,340
0.86
115 Jefferson County, New York
1,522
1.31
52 Jefferson County, Texas
7,626
3.02
176 Jefferson Parish, Louisiana
2,808
0.65
124 Johnson County, Arkansas
308
1.21
216 Johnson County, Iowa
308
0.24
193 Johnson County, Kansas
2,616
0.48
182 Johnson County, Missouri
308
0.59
141 Kalamazoo County, Michigan
2,563
1.02
240 Kanawha County, West Virginia
--
--
62 Kane County, Illinois
13,192
2.56
240 Kay County, Oklahoma
--
--
221 Kenosha County, Wisconsin
308
0.19
221 Kent County, Delaware
308
0.19
110 Kent County, Michigan
8,252
1.37
227 Kenton County, Kentucky
200
0.13
191 Kern County, California
4,218
0.5
177 King County, Washington
12,288
0.64
169 Kings County, California
1,108
0.72
36 Kings County, New York
95,126
3.8
194 Klamath County, Oregon
308
0.46
14 Kleberg County, Texas
2,541
7.93
219 Knox County, Tennessee
924
0.21
213 La Crosse County, Wisconsin
308
0.27
176 Lafayette County, Mississippi
308
0.65
226 Lafayette Parish, Louisiana
308
0.14
107 Lake County, Florida
4,191
1.41
107 Lake County, Illinois
9,894
1.41
157 Lake County, Indiana
4,220
0.85
186 Lamar County, Mississippi
308
0.55
218 Lancaster County, Nebraska
616
0.22
224 Lancaster County, Pennsylvania
812
0.16
231 Lane County, Oregon
308
0.09
186 LaPorte County, Indiana
616
0.55
196 Laramie County, Wyoming
408
0.44
227 Larimer County, Colorado
400
0.13
159 Latah County, Idaho
308
0.83
202 Lauderdale County, Mississippi
308
0.38
189 Laurel County, Kentucky
308
0.52
65 Lawrence County, Mississippi
308
2.38
153 Lawrence County, Pennsylvania
812
0.89
200 Leavenworth County, Kansas
308
0.4
180 Lebanon County, Pennsylvania
812
0.61
218 Lee County, Alabama
308
0.22
152 Lee County, Florida
5,587
0.9
149 Lehigh County, Pennsylvania
3,252
0.93
189 Lenoir County, North Carolina
308
0.52
125 Leon County, Florida
3,294
1.2
232 Liberty County, Georgia
50
0.08
240 Liberty County, Texas
--
--
175 Lincoln Parish, Louisiana
308
0.66
174 Linn County, Iowa
1,416
0.67
195 Lonoke County, Arkansas
308
0.45
238 Lorain County, Ohio
50
0.02
171 Los Angeles County, California
69,080
0.7
11 Loudoun County, Virginia
27,436
8.78
171 Lowndes County, Georgia
762
0.7
87 Lubbock County, Texas
5,084
1.82
197 Lucas County, Ohio
1,908
0.43
190 Luzerne County, Pennsylvania
1,626
0.51
171 Lycoming County, Pennsylvania
812
0.7
26 Lynchburg city, Virginia
3,436
4.55
151 Lyon County, Kansas
308
0.91
206 Macomb County, Michigan
2,863
0.34
91 Macon County, Alabama
368
1.72
53 Macon County, Illinois
3,298
2.98
167 Madera County, California
1,109
0.74
212 Madison County, Alabama
924
0.28
123 Madison County, Illinois
3,298
1.22
203 Madison County, Kentucky
308
0.37
176 Madison County, Mississippi
616
0.65
154 Madison County, Nebraska
308
0.88
209 Madison County, Tennessee
308
0.31
227 Mahoning County, Ohio
308
0.13
10 Manassas city, Virginia
3,436
9.08
240 Manassas Park city, Virginia
--
--
222 Maricopa County, Arizona
6,817
0.18
196 Marin County, California
1,109
0.44
198 Marion County, Florida
1,397
0.42
12 Marion County, Illinois
3,298
8.36
211 Marion County, Indiana
2,657
0.29
147 Martin County, Florida
1,397
0.95
220 Maui County, Hawaii
308
0.2
202 Maury County, Tennessee
308
0.38
23 McDonough County, Illinois
1,649
5.06
74 McHenry County, Illinois
6,596
2.14
197 McKinley County, New Mexico
308
0.43
34 McLean County, Illinois
6,596
3.89
73 McLennan County, Texas
5,084
2.16
208 Mecklenburg County, North Carolina
2,972
0.32
197 Merced County, California
1,109
0.43
108 Mercer County, New Jersey
5,122
1.4
192 Mercer County, West Virginia
308
0.49
150 Miami-Dade County, Florida
23,064
0.92
234 Middlesex County, Connecticut
100
0.06
203 Middlesex County, Massachusetts
5,580
0.37
72 Middlesex County, New Jersey
17,723
2.19
38 Midland County, Texas
5,084
3.71
145 Milwaukee County, Wisconsin
9,156
0.97
198 Minnehaha County, South Dakota
716
0.42
175 Mississippi County, Arkansas
308
0.66
240 Missoula County, Montana
--
--
203 Mobile County, Alabama
1,540
0.37
209 Mohave County, Arizona
616
0.31
128 Monmouth County, New Jersey
7,397
1.17
208 Monongalia County, West Virginia
308
0.32
81 Monroe County, Florida
1,397
1.91
197 Monroe County, Indiana
600
0.43
140 Monroe County, Michigan
1,563
1.03
122 Monroe County, New York
9,133
1.23
193 Monroe County, Pennsylvania
812
0.48
180 Monterey County, California
2,518
0.61
198 Montgomery County, Alabama
968
0.42
119 Montgomery County, Maryland
12,206
1.26
209 Montgomery County, Ohio
1,678
0.31
199 Montgomery County, Pennsylvania
3,252
0.41
222 Montgomery County, Tennessee
308
0.18
69 Montgomery County, Texas
10,168
2.23
33 Montgomery County, Virginia
3,686
3.9
5 Moore County, Texas
2,542
11.61
151 Morris County, New Jersey
4,474
0.91
211 Multnomah County, Oregon
2,140
0.29
125 Muscogee County, Georgia
2,286
1.2
151 Muskegon County, Michigan
1,563
0.91
197 Muskogee County, Oklahoma
308
0.43
64 Napa County, California
3,327
2.44
128 Nassau County, New York
15,690
1.17
236 Natchitoches Parish, Louisiana
15
0.04
118 New Castle County, Delaware
6,816
1.27
194 New Hanover County, North Carolina
924
0.46
190 New Haven County, Connecticut
4,432
0.51
227 New London County, Connecticut
350
0.13
59 New York County, New York
42,545
2.68
82 Newport News city, Virginia
3,436
1.9
171 Niagara County, New York
1,522
0.7
176 Noble County, Indiana
308
0.65
30 Norfolk city, Virginia
10,308
4.25
172 Norfolk County, Massachusetts
4,616
0.69
227 Northampton County, Pennsylvania
400
0.13
91 Northumberland County, Pennsylvania
1,626
1.72
166 Nueces County, Texas
2,542
0.75
164 Oakland County, Michigan
9,378
0.78
190 Ocean County, New Jersey
2,949
0.51
172 Ohio County, West Virginia
308
0.69
165 Okaloosa County, Florida
1,397
0.77
209 Oklahoma County, Oklahoma
2,232
0.31
176 Oktibbeha County, Mississippi
308
0.65
206 Olmsted County, Minnesota
488
0.34
140 Oneida County, New York
2,422
1.03
107 Onondaga County, New York
6,566
1.41
223 Onslow County, North Carolina
308
0.17
160 Orange County, California
24,674
0.82
133 Orange County, Florida
12,572
1.1
144 Orange County, New York
3,644
0.98
217 Orange County, North Carolina
308
0.23
218 Orangeburg County, South Carolina
200
0.22
240 Orleans County, New York
--
--
187 Orleans Parish, Louisiana
1,848
0.54
49 Osceola County, Florida
8,382
3.12
219 Ouachita Parish, Louisiana
323
0.21
223 Outagamie County, Wisconsin
308
0.17
155 Palm Beach County, Florida
11,426
0.87
231 Pasco County, Florida
400
0.09
20 Passaic County, New Jersey
27,915
5.57
200 Payne County, Oklahoma
308
0.4
209 Pennington County, South Dakota
308
0.31
234 Penobscot County, Maine
100
0.06
6 Peoria County, Illinois
19,788
10.61
7 Petersburg city, Virginia
3,436
10.6
173 Phelps County, Missouri
308
0.68
61 Philadelphia County, Pennsylvania
39,540
2.59
100 Pickens County, Alabama
308
1.56
182 Pickens County, South Carolina
700
0.59
232 Pierce County, Washington
616
0.08
237 Pima County, Arizona
308
0.03
230 Pinal County, Arizona
358
0.1
104 Pinellas County, Florida
13,372
1.46
219 Pitt County, North Carolina
350
0.21
194 Polk County, Florida
2,794
0.46
200 Polk County, Iowa
1,724
0.4
160 Pontotoc County, Oklahoma
308
0.82
191 Pope County, Arkansas
308
0.5
221 Portage County, Ohio
308
0.19
240 Porter County, Indiana
--
--
40 Portsmouth city, Virginia
3,436
3.6
76 Potter County, Texas
2,542
2.1
151 Prince George's County, Maryland
7,896
0.91
29 Prince William County, Virginia
17,480
4.35
220 Providence County, Rhode Island
1,244
0.2
221 Pueblo County, Colorado
308
0.19
224 Pulaski County, Arkansas
616
0.16
224 Pulaski County, Kentucky
100
0.16
39 Queens County, New York
81,456
3.65
224 Racine County, Wisconsin
308
0.16
201 Raleigh County, West Virginia
308
0.39
159 Ramsey County, Minnesota
4,232
0.83
75 Randall County, Texas
2,542
2.11
218 Randolph County, North Carolina
308
0.22
217 Rapides Parish, Louisiana
308
0.23
240 Rensselaer County, New York
--
--
192 Rice County, Minnesota
312
0.49
236 Richland County, Ohio
50
0.04
218 Richland County, South Carolina
846
0.22
44 Richmond city, Virginia
6,992
3.42
146 Richmond County, Georgia
1,924
0.96
90 Richmond County, New York
8,115
1.73
175 Richmond County, North Carolina
308
0.66
197 Riley County, Kansas
308
0.43
165 Rio Arriba County, New Mexico
308
0.77
189 Riverside County, California
11,376
0.52
16 Roanoke city, Virginia
6,872
7.08
239 Rock County, Wisconsin
20
0.01
68 Rock Island County, Illinois
3,298
2.24
240 Rockingham County, New Hampshire
--
--
207 Rockingham County, North Carolina
308
0.33
240 Rockingham County, Virginia
--
--
104 Rockland County, New York
4,566
1.46
240 Roosevelt County, New Mexico
--
--
114 Rowan County, Kentucky
308
1.32
221 Rutherford County, Tennessee
500
0.19
156 Sacramento County, California
12,198
0.86
235 Saginaw County, Michigan
100
0.05
186 Saline County, Kansas
308
0.55
196 Salt Lake County, Utah
4,540
0.44
180 San Bernardino County, California
12,321
0.61
170 San Diego County, California
21,994
0.71
159 San Francisco County, California
6,654
0.83
104 San Joaquin County, California
9,980
1.46
160 San Luis Obispo County, California
2,218
0.82
179 San Mateo County, California
4,436
0.62
94 Sangamon County, Illinois
3,298
1.67
210 Santa Barbara County, California
1,259
0.3
137 Santa Clara County, California
18,851
1.06
198 Santa Cruz County, California
1,109
0.42
208 Santa Fe County, New Mexico
458
0.32
219 Sarasota County, Florida
800
0.21
31 Schenectady County, New York
6,089
3.94
186 Schuylkill County, Pennsylvania
812
0.55
221 Scott County, Iowa
308
0.19
163 Scott County, Missouri
308
0.79
192 Sebastian County, Arkansas
616
0.49
215 Sedgwick County, Kansas
1,232
0.25
175 Seminole County, Florida
2,794
0.66
206 Sevier County, Tennessee
308
0.34
238 Shasta County, California
35
0.02
232 Shawnee County, Kansas
150
0.08
234 Sheboygan County, Wisconsin
70
0.06
224 Shelby County, Alabama
308
0.16
193 Shelby County, Tennessee
4,468
0.48
202 Smith County, Texas
800
0.38
195 Snohomish County, Washington
3,232
0.45
91 Socorro County, New Mexico
308
1.72
162 Solano County, California
3,327
0.8
142 Somerset County, New Jersey
3,274
1.01
139 Somerset County, Pennsylvania
812
1.04
194 Sonoma County, California
2,217
0.46
224 Spalding County, Georgia
105
0.16
236 Spartanburg County, South Carolina
100
0.04
233 Spokane County, Washington
308
0.07
57 Spotsylvania County, Virginia
3,436
2.81
156 St. Bernard Parish, Louisiana
308
0.86
123 St. Clair County, Illinois
3,298
1.22
146 St. Clair County, Michigan
1,563
0.96
167 St. Johns County, Florida
1,397
0.74
198 St. Joseph County, Indiana
1,116
0.42
240 St. Lawrence County, New York
--
--
138 St. Louis city, Missouri
3,356
1.05
225 St. Louis County, Minnesota
308
0.15
221 St. Louis County, Missouri
1,908
0.19
178 St. Lucie County, Florida
1,747
0.63
227 St. Tammany Parish, Louisiana
308
0.13
218 Stanislaus County, California
1,109
0.22
224 Stark County, Ohio
616
0.16
93 Steele County, Minnesota
616
1.68
152 Steuben County, Indiana
308
0.9
206 Story County, Iowa
308
0.34
215 Strafford County, New Hampshire
308
0.25
137 Suffolk County, Massachusetts
7,646
1.06
113 Suffolk County, New York
19,887
1.33
32 Sullivan County, New York
3,044
3.93
207 Summit County, Ohio
1,808
0.33
221 Sumner County, Tennessee
308
0.19
184 Sumter County, South Carolina
616
0.57
128 Sutter County, California
1,109
1.17
148 Taos County, New Mexico
308
0.94
71 Tarrant County, Texas
40,046
2.21
114 Teller County, Colorado
308
1.32
216 Thurston County, Washington
616
0.24
222 Tippecanoe County, Indiana
308
0.18
220 Tolland County, Connecticut
308
0.2
240 Tompkins County, New York
--
--
121 Travis County, Texas
12,710
1.24
234 Troup County, Georgia
40
0.06
225 Trumbull County, Ohio
308
0.15
209 Tulare County, California
1,359
0.31
192 Tulsa County, Oklahoma
2,954
0.49
224 Tuscaloosa County, Alabama
308
0.16
227 Twin Falls County, Idaho
100
0.13
159 Ulster County, New York
1,522
0.83
79 Union County, New Jersey
10,494
1.96
240 Union County, Oregon
--
--
19 Upshur County, Texas
2,542
6.47
240 Vanderburgh County, Indiana
--
--
198 Ventura County, California
3,417
0.42
182 Vernon Parish, Louisiana
308
0.59
55 Victoria County, Texas
2,542
2.93
226 Vigo County, Indiana
150
0.14
164 Virginia Beach city, Virginia
3,436
0.78
209 Volusia County, Florida
1,550
0.31
130 Wake County, North Carolina
10,299
1.14
237 Ward County, North Dakota
20
0.03
136 Warren County, Kentucky
1,216
1.07
178 Warren County, Mississippi
308
0.63
111 Warren County, New Jersey
1,474
1.36
182 Warrick County, Indiana
350
0.59
225 Washington County, Arkansas
308
0.15
219 Washington County, Maryland
308
0.21
228 Washington County, Oregon
616
0.12
224 Washington County, Rhode Island
200
0.16
215 Washington County, Tennessee
308
0.25
233 Washoe County, Nevada
308
0.07
117 Washtenaw County, Michigan
4,463
1.29
37 Wayne County, Michigan
67,775
3.72
236 Wayne County, North Carolina
50
0.04
154 Weakley County, Tennessee
308
0.88
141 Webb County, Texas
2,542
1.02
236 Weber County, Utah
100
0.04
228 Weld County, Colorado
308
0.12
105 Westchester County, New York
13,715
1.45
225 Whatcom County, Washington
308
0.15
240 Whiteside County, Illinois
--
--
167 Whitfield County, Georgia
762
0.74
172 Whitman County, Washington
308
0.69
232 Wichita County, Texas
100
0.08
209 Wicomico County, Maryland
308
0.31
104 Will County, Illinois
9,894
1.46
235 Williamson County, Tennessee
100
0.05
114 Williamson County, Texas
5,584
1.32
202 Winchester city, Virginia
100
0.38
206 Winnebago County, Illinois
1,000
0.34
222 Winnebago County, Wisconsin
308
0.18
181 Winona County, Minnesota
308
0.6
99 Wood County, Ohio
2,000
1.59
199 Wood County, Wisconsin
308
0.41
210 Woodbury County, Iowa
308
0.3
232 Worcester County, Massachusetts
616
0.08
201 Wyandotte County, Kansas
616
0.39
227 Yakima County, Washington
308
0.13
238 Yellowstone County, Montana
25
0.02
71 Yolo County, California
4,436
2.21
221 York County, Pennsylvania
813
0.19
211 York County, South Carolina
666
0.29
224 Yuma County, Arizona
308
0.16


* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at www.usreligioncensus.org for those who are interested in these trends.

Source

2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by the Association of Statisticians of American Religious Bodies (ASARB). [More information on the data collection]