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QuickLists > U.S. Religious Groups > Reformed Church in America | |
The Reformed Church in America, the oldest continuously existing Protestant church in the United States, perpetuates the religious life of the Dutch Reformed settlement of New Amsterdam (New York) in the seventeenth century.
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 Reformed Church in 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] | Adherents | Percent |
|---|
| 130 |
Ada County, Idaho |
216 |
0.07 |
| 132 |
Adams County, Colorado |
186 |
0.05 |
| 135 |
Alameda County, California |
328 |
0.02 |
| 56 |
Albany County, New York |
5,285 |
1.79 |
| 25 |
Allegan County, Michigan |
4,439 |
4.2 |
| 130 |
Allen County, Indiana |
221 |
0.07 |
| 73 |
Antrim County, Michigan |
262 |
1.13 |
| 130 |
Arapahoe County, Colorado |
340 |
0.07 |
| 13 |
Aurora County, South Dakota |
235 |
7.68 |
| 107 |
Barnes County, North Dakota |
42 |
0.36 |
| 63 |
Barry County, Michigan |
849 |
1.5 |
| 76 |
Bergen County, New Jersey |
9,131 |
1.03 |
| 128 |
Berrien County, Michigan |
154 |
0.09 |
| 61 |
Black Hawk County, Iowa |
2,086 |
1.63 |
| 14 |
Bon Homme County, South Dakota |
447 |
6.16 |
| 132 |
Bronx County, New York |
655 |
0.05 |
| 63 |
Brookings County, South Dakota |
424 |
1.5 |
| 134 |
Broward County, Florida |
514 |
0.03 |
| 101 |
Bucks County, Pennsylvania |
2,526 |
0.42 |
| 80 |
Burleigh County, North Dakota |
622 |
0.9 |
| 135 |
Burlington County, New Jersey |
101 |
0.02 |
| 9 |
Butler County, Iowa |
1,714 |
11.2 |
| 84 |
Caddo County, Oklahoma |
233 |
0.77 |
| 127 |
Calhoun County, Michigan |
137 |
0.1 |
| 106 |
Carroll County, Illinois |
62 |
0.37 |
| 124 |
Cascade County, Montana |
104 |
0.13 |
| 127 |
Cass County, North Dakota |
117 |
0.1 |
| 110 |
Cayuga County, New York |
258 |
0.31 |
| 89 |
Cerro Gordo County, Iowa |
313 |
0.67 |
| 28 |
Charles Mix County, South Dakota |
373 |
3.99 |
| 37 |
Charlevoix County, Michigan |
855 |
3.28 |
| 101 |
Chautauqua County, New York |
589 |
0.42 |
| 12 |
Chippewa County, Minnesota |
1,055 |
8.06 |
| 50 |
Clark County, South Dakota |
82 |
1.98 |
| 20 |
Clay County, Iowa |
816 |
4.7 |
| 103 |
Clinton County, Iowa |
201 |
0.4 |
| 138 |
Clinton County, Michigan |
-- |
-- |
| 111 |
Collin County, Texas |
1,466 |
0.3 |
| 26 |
Columbia County, New York |
2,570 |
4.07 |
| 76 |
Columbia County, Wisconsin |
542 |
1.03 |
| 138 |
Columbus County, North Carolina |
-- |
-- |
| 125 |
Comanche County, Oklahoma |
137 |
0.12 |
| 138 |
Contra Costa County, California |
-- |
-- |
| 122 |
Cook County, Illinois |
8,818 |
0.16 |
| 132 |
Cuyahoga County, Ohio |
713 |
0.05 |
| 109 |
Dakota County, Minnesota |
1,131 |
0.32 |
| 90 |
Dallas County, Iowa |
262 |
0.64 |
| 137 |
Dallas County, Texas |
95 |
0 |
| 138 |
Dane County, Wisconsin |
-- |
-- |
| 44 |
Davison County, South Dakota |
468 |
2.5 |
| 93 |
Delaware County, New York |
258 |
0.54 |
| 97 |
Delaware County, Ohio |
535 |
0.49 |
| 130 |
Denton County, Texas |
323 |
0.07 |
| 119 |
Denver County, Colorado |
1,067 |
0.19 |
| 138 |
Deuel County, South Dakota |
-- |
-- |
| 30 |
Dickinson County, Iowa |
618 |
3.76 |
| 33 |
Dodge County, Wisconsin |
2,925 |
3.41 |
| 111 |
Douglas County, Minnesota |
98 |
0.3 |
| 127 |
Douglas County, Nebraska |
485 |
0.1 |
| 2 |
Douglas County, South Dakota |
630 |
18.22 |
| 129 |
DuPage County, Illinois |
699 |
0.08 |
| 54 |
Dutchess County, New York |
5,106 |
1.82 |
| 121 |
El Paso County, Colorado |
857 |
0.17 |
| 21 |
Emmons County, North Dakota |
201 |
4.64 |
| 138 |
Erie County, New York |
-- |
-- |
| 138 |
Escambia County, Alabama |
-- |
-- |
| 122 |
Essex County, New Jersey |
1,269 |
0.16 |
| 138 |
Essex County, New York |
-- |
-- |
| 62 |
Fillmore County, Minnesota |
331 |
1.57 |
| 68 |
Fond du Lac County, Wisconsin |
1,305 |
1.34 |
| 19 |
Franklin County, Iowa |
542 |
5.06 |
| 138 |
Franklin County, New York |
-- |
-- |
| 134 |
Franklin County, Ohio |
268 |
0.03 |
| 123 |
Frederick County, Maryland |
292 |
0.15 |
| 84 |
Freeborn County, Minnesota |
251 |
0.77 |
| 138 |
Fresno County, California |
-- |
-- |
| 134 |
Fulton County, Georgia |
245 |
0.03 |
| 92 |
Fulton County, Illinois |
220 |
0.58 |
| 87 |
Fulton County, New York |
394 |
0.72 |
| 78 |
Gage County, Nebraska |
231 |
1 |
| 128 |
Genesee County, Michigan |
392 |
0.09 |
| 45 |
Gooding County, Idaho |
350 |
2.47 |
| 51 |
Grand Traverse County, Michigan |
1,518 |
1.95 |
| 69 |
Grant County, Minnesota |
81 |
1.29 |
| 138 |
Grant County, South Dakota |
-- |
-- |
| 42 |
Greene County, New York |
1,296 |
2.69 |
| 15 |
Grundy County, Iowa |
728 |
5.89 |
| 138 |
Gwinnett County, Georgia |
-- |
-- |
| 128 |
Hamilton County, Indiana |
167 |
0.09 |
| 29 |
Hamlin County, South Dakota |
210 |
3.79 |
| 70 |
Hardin County, Iowa |
239 |
1.27 |
| 94 |
Henderson County, Illinois |
43 |
0.52 |
| 134 |
Hennepin County, Minnesota |
384 |
0.03 |
| 74 |
Herkimer County, New York |
698 |
1.08 |
| 134 |
Hillsborough County, Florida |
285 |
0.03 |
| 122 |
Hudson County, New Jersey |
965 |
0.16 |
| 57 |
Hunterdon County, New Jersey |
2,165 |
1.77 |
| 113 |
Ingham County, Michigan |
742 |
0.27 |
| 101 |
Iroquois County, Illinois |
132 |
0.42 |
| 85 |
Island County, Washington |
541 |
0.76 |
| 47 |
Jackson County, Kentucky |
297 |
2.2 |
| 138 |
Jackson County, Missouri |
-- |
-- |
| 17 |
Jasper County, Indiana |
1,574 |
5.24 |
| 32 |
Jasper County, Iowa |
1,276 |
3.43 |
| 126 |
Jefferson County, Colorado |
576 |
0.11 |
| 115 |
Jefferson County, New York |
275 |
0.25 |
| 115 |
Johnson County, Iowa |
281 |
0.25 |
| 132 |
Johnson County, Kansas |
236 |
0.05 |
| 138 |
Jones County, South Dakota |
-- |
-- |
| 27 |
Kalamazoo County, Michigan |
9,538 |
4 |
| 67 |
Kandiyohi County, Minnesota |
556 |
1.35 |
| 79 |
Kankakee County, Illinois |
953 |
0.92 |
| 41 |
Kent County, Michigan |
17,633 |
3.07 |
| 135 |
King County, Washington |
354 |
0.02 |
| 130 |
Kings County, New York |
1,732 |
0.07 |
| 66 |
Kossuth County, Iowa |
244 |
1.42 |
| 98 |
Lac qui Parle County, Minnesota |
37 |
0.46 |
| 138 |
Lake County, Illinois |
-- |
-- |
| 123 |
Lake County, Indiana |
724 |
0.15 |
| 138 |
Lake County, Minnesota |
-- |
-- |
| 55 |
LaMoure County, North Dakota |
85 |
1.81 |
| 101 |
Lancaster County, Nebraska |
1,041 |
0.42 |
| 138 |
Lee County, Florida |
-- |
-- |
| 55 |
Leelanau County, Michigan |
382 |
1.81 |
| 114 |
Lewis County, New York |
70 |
0.26 |
| 35 |
Lincoln County, South Dakota |
798 |
3.31 |
| 115 |
Linn County, Iowa |
480 |
0.25 |
| 77 |
Los Alamos County, New Mexico |
188 |
1.02 |
| 130 |
Los Angeles County, California |
6,591 |
0.07 |
| 3 |
Lyon County, Iowa |
2,028 |
17.24 |
| 135 |
Macomb County, Michigan |
171 |
0.02 |
| 117 |
Madera County, California |
259 |
0.21 |
| 28 |
Mahaska County, Iowa |
891 |
3.99 |
| 124 |
Manatee County, Florida |
356 |
0.13 |
| 108 |
Marathon County, Wisconsin |
426 |
0.34 |
| 131 |
Maricopa County, Arizona |
1,698 |
0.06 |
| 135 |
Marion County, Indiana |
202 |
0.02 |
| 6 |
Marion County, Iowa |
4,292 |
13.39 |
| 60 |
Marshall County, South Dakota |
75 |
1.64 |
| 65 |
Mason County, Michigan |
411 |
1.45 |
| 95 |
Medina County, Ohio |
764 |
0.51 |
| 132 |
Mercer County, New Jersey |
190 |
0.05 |
| 136 |
Miami-Dade County, Florida |
191 |
0.01 |
| 136 |
Middlesex County, Massachusetts |
104 |
0.01 |
| 104 |
Middlesex County, New Jersey |
2,929 |
0.39 |
| 102 |
Midland County, Michigan |
336 |
0.41 |
| 130 |
Milwaukee County, Wisconsin |
691 |
0.07 |
| 53 |
Minnehaha County, South Dakota |
2,713 |
1.83 |
| 24 |
Missaukee County, Michigan |
638 |
4.41 |
| 138 |
Mobile County, Alabama |
-- |
-- |
| 99 |
Monmouth County, New Jersey |
2,750 |
0.45 |
| 126 |
Monroe County, New York |
793 |
0.11 |
| 138 |
Monroe County, Pennsylvania |
-- |
-- |
| 18 |
Montgomery County, New York |
2,534 |
5.1 |
| 132 |
Montgomery County, Pennsylvania |
348 |
0.05 |
| 97 |
Morris County, New Jersey |
2,285 |
0.49 |
| 138 |
Multnomah County, Oregon |
-- |
-- |
| 23 |
Murray County, Minnesota |
415 |
4.53 |
| 39 |
Muskegon County, Michigan |
5,435 |
3.19 |
| 120 |
Nassau County, New York |
2,458 |
0.18 |
| 82 |
New York County, New York |
12,439 |
0.81 |
| 40 |
Newaygo County, Michigan |
1,522 |
3.18 |
| 22 |
Nobles County, Minnesota |
959 |
4.6 |
| 138 |
Northampton County, Pennsylvania |
-- |
-- |
| 136 |
Oakland County, Michigan |
63 |
0.01 |
| 5 |
O'Brien County, Iowa |
2,269 |
15.02 |
| 114 |
Ocean County, New Jersey |
1,350 |
0.26 |
| 71 |
Oceana County, Michigan |
320 |
1.19 |
| 49 |
Ogle County, Illinois |
1,024 |
2.01 |
| 125 |
Oklahoma County, Oklahoma |
782 |
0.12 |
| 122 |
Olmsted County, Minnesota |
204 |
0.16 |
| 130 |
Oneida County, New York |
169 |
0.07 |
| 126 |
Onondaga County, New York |
526 |
0.11 |
| 94 |
Orange County, California |
14,911 |
0.52 |
| 133 |
Orange County, Florida |
337 |
0.04 |
| 91 |
Orange County, New York |
2,058 |
0.6 |
| 8 |
Osceola County, Iowa |
820 |
11.71 |
| 107 |
Otero County, New Mexico |
222 |
0.36 |
| 4 |
Ottawa County, Michigan |
36,461 |
15.3 |
| 136 |
Palm Beach County, Florida |
158 |
0.01 |
| 129 |
Pasco County, Florida |
263 |
0.08 |
| 86 |
Passaic County, New Jersey |
3,622 |
0.74 |
| 138 |
Peoria County, Illinois |
-- |
-- |
| 138 |
Philadelphia County, Pennsylvania |
-- |
-- |
| 43 |
Phillips County, Kansas |
156 |
2.6 |
| 100 |
Pike County, Pennsylvania |
204 |
0.44 |
| 134 |
Pima County, Arizona |
253 |
0.03 |
| 135 |
Pinellas County, Florida |
225 |
0.02 |
| 11 |
Pipestone County, Minnesota |
813 |
8.22 |
| 138 |
Placer County, California |
-- |
-- |
| 138 |
Plymouth County, Iowa |
-- |
-- |
| 84 |
Polk County, Iowa |
2,880 |
0.77 |
| 120 |
Queens County, New York |
4,114 |
0.18 |
| 129 |
Racine County, Wisconsin |
147 |
0.08 |
| 138 |
Ramsey County, Minnesota |
-- |
-- |
| 64 |
Rensselaer County, New York |
2,261 |
1.48 |
| 121 |
Richmond County, New York |
737 |
0.17 |
| 103 |
Rio Arriba County, New Mexico |
164 |
0.4 |
| 101 |
Riverside County, California |
6,442 |
0.42 |
| 7 |
Rock County, Minnesota |
1,207 |
12.42 |
| 124 |
Rock County, Wisconsin |
197 |
0.13 |
| 112 |
Rockland County, New York |
825 |
0.29 |
| 123 |
Sacramento County, California |
1,804 |
0.15 |
| 130 |
San Bernardino County, California |
1,168 |
0.07 |
| 135 |
San Diego County, California |
506 |
0.02 |
| 136 |
San Francisco County, California |
62 |
0.01 |
| 115 |
San Joaquin County, California |
1,389 |
0.25 |
| 134 |
San Mateo County, California |
224 |
0.03 |
| 138 |
Santa Barbara County, California |
-- |
-- |
| 129 |
Santa Clara County, California |
1,350 |
0.08 |
| 123 |
Sarasota County, Florida |
482 |
0.15 |
| 96 |
Saratoga County, New York |
1,007 |
0.5 |
| 36 |
Schenectady County, New York |
4,831 |
3.3 |
| 46 |
Schoharie County, New York |
708 |
2.24 |
| 109 |
Scott County, Iowa |
504 |
0.32 |
| 118 |
Scott County, Minnesota |
181 |
0.2 |
| 133 |
Sedgwick County, Kansas |
191 |
0.04 |
| 72 |
Seneca County, New York |
394 |
1.18 |
| 21 |
Sheboygan County, Wisconsin |
5,227 |
4.64 |
| 1 |
Sioux County, Iowa |
11,282 |
35.71 |
| 130 |
Snohomish County, Washington |
417 |
0.07 |
| 52 |
Somerset County, New Jersey |
5,471 |
1.84 |
| 135 |
Sonoma County, California |
71 |
0.02 |
| 126 |
St. Charles County, Missouri |
320 |
0.11 |
| 83 |
St. Croix County, Wisconsin |
495 |
0.78 |
| 127 |
Stanislaus County, California |
439 |
0.1 |
| 81 |
Stephenson County, Illinois |
434 |
0.89 |
| 127 |
Suffolk County, New York |
1,393 |
0.1 |
| 88 |
Sullivan County, New York |
523 |
0.71 |
| 121 |
Sussex County, New Jersey |
246 |
0.17 |
| 136 |
Tarrant County, Texas |
156 |
0.01 |
| 108 |
Tazewell County, Illinois |
434 |
0.34 |
| 38 |
Thurston County, Nebraska |
230 |
3.21 |
| 106 |
Tippecanoe County, Indiana |
549 |
0.37 |
| 116 |
Tulare County, California |
814 |
0.22 |
| 10 |
Turner County, South Dakota |
831 |
9.39 |
| 48 |
Twin Falls County, Idaho |
1,329 |
2.07 |
| 31 |
Ulster County, New York |
6,131 |
3.45 |
| 133 |
Union County, New Jersey |
217 |
0.04 |
| 66 |
Van Buren County, Michigan |
1,080 |
1.42 |
| 138 |
Van Wert County, Ohio |
-- |
-- |
| 133 |
Wake County, North Carolina |
249 |
0.04 |
| 120 |
Walworth County, Wisconsin |
173 |
0.18 |
| 119 |
Wapello County, Iowa |
69 |
0.19 |
| 138 |
Warren County, Iowa |
-- |
-- |
| 114 |
Washington County, New York |
156 |
0.26 |
| 129 |
Washington County, Wisconsin |
96 |
0.08 |
| 133 |
Washtenaw County, Michigan |
122 |
0.04 |
| 133 |
Waukesha County, Wisconsin |
140 |
0.04 |
| 133 |
Wayne County, Michigan |
805 |
0.04 |
| 59 |
Wayne County, New York |
1,553 |
1.66 |
| 114 |
Wayne County, Pennsylvania |
126 |
0.26 |
| 105 |
Westchester County, New York |
3,465 |
0.38 |
| 72 |
Whatcom County, Washington |
1,974 |
1.18 |
| 16 |
Whiteside County, Illinois |
3,406 |
5.62 |
| 110 |
Will County, Illinois |
1,563 |
0.31 |
| 131 |
Williamson County, Tennessee |
79 |
0.06 |
| 132 |
Winnebago County, Illinois |
148 |
0.05 |
| 34 |
Winnebago County, Iowa |
391 |
3.34 |
| 111 |
Wood County, Wisconsin |
230 |
0.3 |
| 71 |
Woodbury County, Iowa |
1,238 |
1.19 |
| 58 |
Wright County, Iowa |
245 |
1.71 |
| 123 |
Wright County, Minnesota |
133 |
0.15 |
| 125 |
Yakima County, Washington |
273 |
0.12 |
| 75 |
Yankton County, South Dakota |
230 |
1.06 |
| 123 |
Yavapai County, Arizona |
255 |
0.15 |
*
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]
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