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Use the Top Main Menu Bar to Begin Exploring or Click Above for a Brief Introduction

Renovated Website

The ARDA's Website was Recently Renovated; Click Above for a few Tips on Finding your Old Favorites

Family Trees

Greatly Expanded and Now Interactive, our Trees Show the Lineage of Major US Religious Groups and World Religions

New Data Coming Soon

Learn About the Forthcoming 2020 Religion Census or Review Reports and Maps from 2010

General Social Surveys

Explore the 2021 GSS, the 2016-20 GSS Survey Panel, or Select Findings from the GSS and Other Surveys

Ahead of the Trend

Read "Ahead of the Trend" and "GlobalPlus" Blog Articles

Tweets by ReligionData

Interactive Reports for Over 1000 Religious Groups

Interactive Reports for Dozens of Religious Families

Interactive Reports for Several Religious Traditions

Generate a Religion Demographics Report for Your Zip Code

Interactive Congregational Membership Reports with Maps and Over Time Charts for States, Counties and Metro Areas

Interactive US Maps of Religion Affiliation Percentages and Other Topics with State Rankings

Interactive US State Maps of Religion Affiliation Percentages and Other Topics with County Rankings

Interactive Trees Showing the Lineage of Numerous US Religious Groups

Interactive Historical Timelines of US Religion with Details on People, Events and Movements

Browse Dozens of Topics with Responses from Major National Surveys and Demographic Patterns

Generate Reports of Religion Rankings for Geographic Areas with Percentages for States, Counties and Metro Areas

Interactive Congregational Membership Reports with Maps and Over Time Charts for States, Counties and Metro Areas

Browse Hundreds of US Religion Surveys

Browse US Church Membership Data

Religion Demographics, Survey Findings and Social and Political Measures for Hundreds of Nations

Religion Demographics, Survey Findings and Social and Political Measures for World Regions

Religion Demographics, Survey Findings and Social and Political Measures for the World Population

Interactive Trees Showing the Lineage of Numerous World Religious Groups

Interactive World Maps of Religion Affiliation and Other Topics with National Rankings

Browse Hundreds of International Religion Surveys and Data Collections

Browse Over 1000 Data Collections Ordered Alphabetically by Title Name

Interactive Categorized Hierarchy of Over 1000 Data Collections

Browse Newest Data Collections Ordered by Addition Date

Compare and Evaluate Measures of Religion, Spirituality and Other Related Topics

Download Machine Readable Cataloging (MARC) Files Containing Extensive Metadata on the ARDA's 1000+ Survey Data Sets and Other Data and Features

Browse Over 1000 Data Collections Ordered Alphabetically by Title Name

Interactive Categorized Hierarchy of Over 1000 Data Collections

Browse Newest Data Collections Ordered by Addition Date

Compare and Evaluate Measures of Religion, Spirituality and Other Related Topics

Religious Classification Syntax Files

Hundreds of Religion and Statistical Term Definitions

Prominent Scholars Guidance Papers on the Study of Religion and New Research Agendas

Conference Papers and Other Unpublished Research on the Social Scientific Study of Religion

Former Working Papers on the Social Scientific Study of Religion Which are Now Published

Links to Related Sites for Researchers

Build College Level Research Skills and Religion Knowledge with Short Exercises

Build High School Level Research Skills and Religion Knowledge with Short Exercises

Interactive Historical Timelines of US Religion with Details on People, Events and Movements

Hundreds of Religion and Statistical Term Definitions

Data Archive Collections Created for Classroom Use

Links to Related Sites for Educators

Generate a Religion Demographics Report for Your Zip Code

Interactive Congregational Membership Reports with Maps and Over Time Charts for States, Counties and Metro Areas

Interactive Reports for Over 1000 Religious Groups

Interactive Reports for Dozens of Religious Families

Interactive Reports for Several Religious Traditions

Interactive US State Maps of Religion Affiliation Percentages and Other Topics with County Rankings

Interactive US Maps of Religion Affiliation Percentages and Other Topics with State Rankings

Links to Related Sites for Congregations

Details About the ARDA's Formation, History, Purpose and Team Members