United Reformed Churches in North America Counties (2000) [ Metro Areas | States ]
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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 in the United Reformed Churches in North America. 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
1 O'Brien County, Iowa
326
2.16
2 Lyon County, Iowa
187
1.59
3 Rock County, Minnesota
127
1.31
4 Sioux County, Iowa
294
0.93
5 Jasper County, Indiana
180
0.6
6 Ottawa County, Michigan
1,353
0.57
7 Addison County, Vermont
199
0.55
8 Grundy County, Iowa
67
0.54
9 Beaufort County, North Carolina
169
0.38
10 Kent County, Michigan
1,934
0.34
11 Whatcom County, Washington
275
0.16
12 Morris County, New Jersey
639
0.14
13 Kalamazoo County, Michigan
322
0.13
14 Ada County, Idaho
367
0.12
15 Benton County, Washington
159
0.11
16 Dodge County, Wisconsin
76
0.09
16 Sussex County, New Jersey
124
0.09
17 Lake County, Indiana
378
0.08
18 Larimer County, Colorado
143
0.06
18 Marion County, Oregon
165
0.06
19 San Bernardino County, California
916
0.05
20 San Joaquin County, California
250
0.04
21 Passaic County, New Jersey
159
0.03
22 Jackson County, Missouri
110
0.02
22 Lee County, Florida
72
0.02
22 San Diego County, California
687
0.02
22 Will County, Illinois
85
0.02
23 Contra Costa County, California
108
0.01
23 Cook County, Illinois
775
0.01
23 Fresno County, California
68
0.01
23 Orange County, California
411
0.01
23 Suffolk County, New York
170
0.01
24 Los Angeles County, California
34
0
24 Maricopa County, Arizona
120
0
25 Arapahoe County, Colorado
--
--
25 Canyon County, Idaho
--
--
25 Clackamas County, Oregon
--
--
25 District of Columbia, District of Columbia
--
--
25 Fond du Lac County, Wisconsin
--
--
25 Gallatin County, Montana
--
--
25 Kandiyohi County, Minnesota
--
--
25 Kauai County, Hawaii
--
--
25 Kings County, California
--
--
25 Lackawanna County, Pennsylvania
--
--
25 Lancaster County, Pennsylvania
--
--
25 Marion County, Iowa
--
--
25 Minnehaha County, South Dakota
--
--
25 New York County, New York
--
--
25 Orange County, New York
--
--
25 Polk County, Iowa
--
--
25 Skagit County, Washington
--
--
25 Tulare County, California
--
--
25 Twin Falls County, Idaho
--
--
25 Yakima County, Washington
--
--


* 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]