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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 |
|---|
| 6 |
Ottawa County, Michigan |
33,297 |
12.62 |
| 39 |
Kent County, Michigan |
14,993 |
2.49 |
| 1 |
Sioux County, Iowa |
11,112 |
32.97 |
| 82 |
New York County, New York |
10,268 |
0.65 |
| 104 |
Orange County, California |
9,273 |
0.31 |
| 30 |
Kalamazoo County, Michigan |
8,414 |
3.36 |
| 56 |
Lake County, Indiana |
7,062 |
1.42 |
| 78 |
Bergen County, New Jersey |
6,989 |
0.77 |
| 2 |
Marion County, Iowa |
6,783 |
20.36 |
| 124 |
Los Angeles County, California |
6,293 |
0.06 |
| 106 |
Riverside County, California |
6,199 |
0.28 |
| 119 |
Cook County, Illinois |
5,555 |
0.11 |
| 20 |
Sheboygan County, Wisconsin |
5,276 |
4.57 |
| 32 |
Muskegon County, Michigan |
4,997 |
2.9 |
| 36 |
Ulster County, New York |
4,987 |
2.73 |
| 54 |
Somerset County, New Jersey |
4,843 |
1.5 |
| 27 |
Allegan County, Michigan |
4,465 |
4.01 |
| 65 |
Albany County, New York |
3,729 |
1.23 |
| 76 |
Polk County, Iowa |
3,651 |
0.85 |
| 41 |
Schenectady County, New York |
3,597 |
2.32 |
| 66 |
Dutchess County, New York |
3,588 |
1.21 |
| 116 |
Queens County, New York |
3,445 |
0.15 |
| 39 |
Black Hawk County, Iowa |
3,266 |
2.49 |
| 102 |
Westchester County, New York |
3,244 |
0.34 |
| 17 |
Whiteside County, Illinois |
2,907 |
4.97 |
| 52 |
Minnehaha County, South Dakota |
2,693 |
1.59 |
| 89 |
Passaic County, New Jersey |
2,531 |
0.5 |
| 34 |
Dodge County, Wisconsin |
2,487 |
2.8 |
| 4 |
O'Brien County, Iowa |
2,372 |
16.47 |
| 3 |
Lyon County, Iowa |
2,352 |
20.31 |
| 103 |
Monmouth County, New Jersey |
2,082 |
0.33 |
| 117 |
Sacramento County, California |
2,057 |
0.14 |
| 109 |
San Francisco County, California |
1,924 |
0.24 |
| 110 |
Middlesex County, New Jersey |
1,874 |
0.23 |
| 117 |
Nassau County, New York |
1,858 |
0.14 |
| 56 |
Hunterdon County, New Jersey |
1,827 |
1.42 |
| 26 |
Lincoln County, South Dakota |
1,818 |
4.06 |
| 48 |
Grand Traverse County, Michigan |
1,700 |
1.95 |
| 45 |
Twin Falls County, Idaho |
1,633 |
2.11 |
| 108 |
Bucks County, Pennsylvania |
1,535 |
0.25 |
| 21 |
Jasper County, Indiana |
1,502 |
4.49 |
| 73 |
Rensselaer County, New York |
1,495 |
0.94 |
| 79 |
Whatcom County, Washington |
1,467 |
0.73 |
| 33 |
Montgomery County, New York |
1,420 |
2.83 |
| 58 |
Woodbury County, Iowa |
1,388 |
1.36 |
| 106 |
Morris County, New Jersey |
1,381 |
0.28 |
| 44 |
Columbia County, New York |
1,379 |
2.19 |
| 59 |
Fond du Lac County, Wisconsin |
1,335 |
1.31 |
| 5 |
Rock County, Minnesota |
1,329 |
13.72 |
| 125 |
Kings County, New York |
1,314 |
0.05 |
| 113 |
San Joaquin County, California |
1,218 |
0.18 |
| 103 |
Orange County, New York |
1,215 |
0.33 |
| 80 |
Delaware County, Ohio |
1,210 |
0.69 |
| 68 |
Kankakee County, Illinois |
1,204 |
1.06 |
| 107 |
Tulare County, California |
1,183 |
0.27 |
| 13 |
Butler County, Iowa |
1,113 |
7.49 |
| 127 |
Maricopa County, Arizona |
1,101 |
0.03 |
| 100 |
Lancaster County, Nebraska |
1,077 |
0.38 |
| 46 |
Greene County, New York |
1,018 |
2.07 |
| 124 |
Santa Clara County, California |
993 |
0.06 |
| 117 |
Will County, Illinois |
970 |
0.14 |
| 12 |
Chippewa County, Minnesota |
969 |
7.79 |
| 69 |
Wayne County, New York |
955 |
1.02 |
| 63 |
Van Buren County, Michigan |
954 |
1.25 |
| 116 |
El Paso County, Colorado |
937 |
0.15 |
| 49 |
Newaygo County, Michigan |
936 |
1.93 |
| 95 |
Saratoga County, New York |
934 |
0.43 |
| 125 |
San Bernardino County, California |
931 |
0.05 |
| 115 |
Ocean County, New Jersey |
929 |
0.16 |
| 110 |
Dakota County, Minnesota |
897 |
0.23 |
| 10 |
Pipestone County, Minnesota |
896 |
9.34 |
| 117 |
Hudson County, New Jersey |
878 |
0.14 |
| 9 |
Turner County, South Dakota |
868 |
10.4 |
| 40 |
Jasper County, Iowa |
863 |
2.34 |
| 14 |
Missaukee County, Michigan |
845 |
5.69 |
| 99 |
Linn County, Iowa |
820 |
0.39 |
| 29 |
Mahaska County, Iowa |
804 |
3.59 |
| 92 |
Medina County, Ohio |
797 |
0.46 |
| 106 |
Ingham County, Michigan |
782 |
0.28 |
| 18 |
Dickinson County, Iowa |
771 |
4.63 |
| 125 |
Suffolk County, New York |
754 |
0.05 |
| 8 |
Osceola County, Iowa |
741 |
11.47 |
| 23 |
Clay County, Iowa |
735 |
4.41 |
| 110 |
Rockland County, New York |
702 |
0.23 |
| 118 |
Douglas County, Nebraska |
675 |
0.13 |
| 62 |
Ogle County, Illinois |
672 |
1.26 |
| 38 |
Charlevoix County, Michigan |
655 |
2.52 |
| 42 |
Mason County, Michigan |
650 |
2.26 |
| 78 |
Burleigh County, North Dakota |
628 |
0.77 |
| 71 |
Herkimer County, New York |
626 |
0.97 |
| 118 |
Richmond County, New York |
624 |
0.13 |
| 127 |
Wayne County, Michigan |
604 |
0.03 |
| 69 |
Barry County, Michigan |
601 |
1.02 |
| 101 |
Scott County, Iowa |
598 |
0.36 |
| 122 |
Monroe County, New York |
596 |
0.08 |
| 119 |
Jefferson County, Colorado |
573 |
0.11 |
| 37 |
Nobles County, Minnesota |
563 |
2.63 |
| 123 |
Essex County, New Jersey |
559 |
0.07 |
| 47 |
Oceana County, Michigan |
546 |
2.05 |
| 16 |
Franklin County, Iowa |
543 |
5.08 |
| 61 |
Kandiyohi County, Minnesota |
537 |
1.27 |
| 98 |
Chautauqua County, New York |
534 |
0.4 |
| 51 |
Schoharie County, New York |
534 |
1.63 |
| 124 |
Milwaukee County, Wisconsin |
531 |
0.06 |
| 126 |
Cuyahoga County, Ohio |
527 |
0.04 |
| 102 |
Madera County, California |
517 |
0.34 |
| 123 |
Collin County, Texas |
512 |
0.07 |
| 122 |
Denver County, Colorado |
505 |
0.08 |
| 74 |
Columbia County, Wisconsin |
503 |
0.89 |
| 123 |
Oklahoma County, Oklahoma |
491 |
0.07 |
| 85 |
Island County, Washington |
477 |
0.61 |
| 28 |
Grundy County, Iowa |
473 |
3.8 |
| 125 |
DuPage County, Illinois |
460 |
0.05 |
| 87 |
Sullivan County, New York |
445 |
0.57 |
| 43 |
Davison County, South Dakota |
436 |
2.24 |
| 108 |
Tippecanoe County, Indiana |
426 |
0.25 |
| 104 |
Marathon County, Wisconsin |
422 |
0.31 |
| 19 |
Charles Mix County, South Dakota |
420 |
4.6 |
| 60 |
Brookings County, South Dakota |
412 |
1.29 |
| 50 |
Fillmore County, Minnesota |
398 |
1.91 |
| 127 |
Bronx County, New York |
392 |
0.03 |
| 122 |
Onondaga County, New York |
384 |
0.08 |
| 24 |
Murray County, Minnesota |
382 |
4.38 |
| 7 |
Douglas County, South Dakota |
374 |
12.46 |
| 15 |
Bon Homme County, South Dakota |
361 |
5.11 |
| 129 |
San Diego County, California |
360 |
0.01 |
| 128 |
Broward County, Florida |
359 |
0.02 |
| 105 |
Jefferson County, New York |
350 |
0.3 |
| 96 |
Midland County, Michigan |
349 |
0.42 |
| 97 |
St. Croix County, Wisconsin |
348 |
0.41 |
| 31 |
Winnebago County, Iowa |
337 |
3.1 |
| 121 |
St. Charles County, Missouri |
336 |
0.09 |
| 81 |
Stephenson County, Illinois |
325 |
0.68 |
| 128 |
Alameda County, California |
310 |
0.02 |
| 118 |
Frederick County, Maryland |
299 |
0.13 |
| 127 |
Pima County, Arizona |
299 |
0.03 |
| 127 |
Hennepin County, Minnesota |
296 |
0.03 |
| 94 |
Dallas County, Iowa |
291 |
0.44 |
| 126 |
Snohomish County, Washington |
290 |
0.04 |
| 84 |
Warren County, Iowa |
285 |
0.62 |
| 124 |
Sedgwick County, Kansas |
283 |
0.06 |
| 111 |
Tazewell County, Illinois |
280 |
0.21 |
| 129 |
King County, Washington |
265 |
0.01 |
| 22 |
Hamlin County, South Dakota |
263 |
4.46 |
| 128 |
Hillsborough County, Florida |
262 |
0.02 |
| 124 |
Genesee County, Michigan |
254 |
0.06 |
| 67 |
Yankton County, South Dakota |
254 |
1.13 |
| 126 |
Arapahoe County, Colorado |
252 |
0.04 |
| 11 |
Aurora County, South Dakota |
248 |
9.15 |
| 99 |
Otero County, New Mexico |
248 |
0.39 |
| 127 |
Montgomery County, Pennsylvania |
243 |
0.03 |
| 128 |
Orange County, Florida |
242 |
0.02 |
| 113 |
Johnson County, Iowa |
241 |
0.18 |
| 123 |
Washtenaw County, Michigan |
241 |
0.07 |
| 120 |
Yakima County, Washington |
236 |
0.1 |
| 88 |
Cerro Gordo County, Iowa |
234 |
0.53 |
| 124 |
Sarasota County, Florida |
234 |
0.06 |
| 90 |
Delaware County, New York |
233 |
0.49 |
| 125 |
Stanislaus County, California |
232 |
0.05 |
| 73 |
Antrim County, Michigan |
222 |
0.94 |
| 70 |
Leelanau County, Michigan |
220 |
1.01 |
| 124 |
Ada County, Idaho |
219 |
0.06 |
| 120 |
Yavapai County, Arizona |
218 |
0.1 |
| 128 |
Fulton County, Georgia |
217 |
0.02 |
| 57 |
Gooding County, Idaho |
217 |
1.4 |
| 52 |
Jackson County, Kentucky |
215 |
1.59 |
| 118 |
Monroe County, Pennsylvania |
215 |
0.13 |
| 86 |
Seneca County, New York |
207 |
0.59 |
| 124 |
Allen County, Indiana |
202 |
0.06 |
| 83 |
Freeborn County, Minnesota |
200 |
0.64 |
| 128 |
Wake County, North Carolina |
197 |
0.02 |
| 35 |
Thurston County, Nebraska |
193 |
2.78 |
| 64 |
Kossuth County, Iowa |
192 |
1.24 |
| 126 |
Union County, New Jersey |
192 |
0.04 |
| 55 |
Wright County, Iowa |
191 |
1.44 |
| 83 |
Van Wert County, Ohio |
185 |
0.64 |
| 108 |
Wood County, Wisconsin |
185 |
0.25 |
| 85 |
Caddo County, Oklahoma |
182 |
0.61 |
| 77 |
Gage County, Nebraska |
182 |
0.82 |
| 125 |
Mercer County, New Jersey |
181 |
0.05 |
| 128 |
Contra Costa County, California |
178 |
0.02 |
| 91 |
Fulton County, Illinois |
178 |
0.48 |
| 101 |
Clinton County, Iowa |
177 |
0.36 |
| 127 |
Johnson County, Kansas |
177 |
0.03 |
| 124 |
Hamilton County, Indiana |
176 |
0.06 |
| 128 |
Fresno County, California |
175 |
0.02 |
| 72 |
Hardin County, Iowa |
166 |
0.95 |
| 120 |
Rock County, Wisconsin |
163 |
0.1 |
| 119 |
Olmsted County, Minnesota |
160 |
0.11 |
| 108 |
Washington County, New York |
155 |
0.25 |
| 112 |
Cayuga County, New York |
154 |
0.19 |
| 85 |
Plymouth County, Iowa |
153 |
0.61 |
| 107 |
Fulton County, New York |
152 |
0.27 |
| 129 |
Miami-Dade County, Florida |
151 |
0.01 |
| 25 |
Emmons County, North Dakota |
145 |
4.08 |
| 101 |
Rio Arriba County, New Mexico |
145 |
0.36 |
| 119 |
Comanche County, Oklahoma |
141 |
0.11 |
| 93 |
Iroquois County, Illinois |
134 |
0.45 |
| 124 |
Racine County, Wisconsin |
122 |
0.06 |
| 126 |
Manatee County, Florida |
119 |
0.04 |
| 129 |
Marion County, Indiana |
119 |
0.01 |
| 49 |
Phillips County, Kansas |
109 |
1.93 |
| 129 |
Middlesex County, Massachusetts |
106 |
0.01 |
| 123 |
Calhoun County, Michigan |
102 |
0.07 |
| 123 |
Sussex County, New Jersey |
100 |
0.07 |
| 129 |
Franklin County, Ohio |
99 |
0.01 |
| 128 |
Sonoma County, California |
97 |
0.02 |
| 122 |
Wright County, Minnesota |
97 |
0.08 |
| 102 |
Lewis County, New York |
91 |
0.34 |
| 121 |
Walworth County, Wisconsin |
91 |
0.09 |
| 117 |
Pike County, Pennsylvania |
83 |
0.14 |
| 124 |
Washington County, Wisconsin |
81 |
0.06 |
| 125 |
Cass County, North Dakota |
79 |
0.05 |
| 129 |
Macomb County, Michigan |
75 |
0.01 |
| 55 |
Marshall County, South Dakota |
67 |
1.44 |
| 129 |
Gwinnett County, Georgia |
65 |
0.01 |
| 53 |
LaMoure County, North Dakota |
65 |
1.57 |
| 130 |
Palm Beach County, Florida |
63 |
0 |
| 114 |
Wapello County, Iowa |
62 |
0.17 |
| 129 |
Waukesha County, Wisconsin |
57 |
0.01 |
| 104 |
Los Alamos County, New Mexico |
55 |
0.31 |
| 75 |
Grant County, Minnesota |
53 |
0.88 |
| 124 |
Cascade County, Montana |
52 |
0.06 |
| 127 |
Berrien County, Michigan |
42 |
0.03 |
| 109 |
Carroll County, Illinois |
37 |
0.24 |
| 103 |
Barnes County, North Dakota |
36 |
0.33 |
| 96 |
Henderson County, Illinois |
31 |
0.42 |
| 105 |
Grant County, South Dakota |
22 |
0.3 |
| 131 |
Adams County, Colorado |
-- |
-- |
| 131 |
Burlington County, New Jersey |
-- |
-- |
| 131 |
Clark County, South Dakota |
-- |
-- |
| 131 |
Clinton County, Michigan |
-- |
-- |
| 131 |
Columbus County, North Carolina |
-- |
-- |
| 131 |
Dallas County, Texas |
-- |
-- |
| 131 |
Dane County, Wisconsin |
-- |
-- |
| 131 |
Denton County, Texas |
-- |
-- |
| 131 |
Deuel County, South Dakota |
-- |
-- |
| 131 |
Douglas County, Minnesota |
-- |
-- |
| 131 |
Erie County, New York |
-- |
-- |
| 131 |
Escambia County, Alabama |
-- |
-- |
| 131 |
Essex County, New York |
-- |
-- |
| 131 |
Franklin County, New York |
-- |
-- |
| 131 |
Jackson County, Missouri |
-- |
-- |
| 131 |
Jones County, South Dakota |
-- |
-- |
| 131 |
Lac qui Parle County, Minnesota |
-- |
-- |
| 131 |
Lake County, Illinois |
-- |
-- |
| 131 |
Lake County, Minnesota |
-- |
-- |
| 131 |
Lee County, Florida |
-- |
-- |
| 131 |
Mobile County, Alabama |
-- |
-- |
| 131 |
Multnomah County, Oregon |
-- |
-- |
| 131 |
Northampton County, Pennsylvania |
-- |
-- |
| 131 |
Oakland County, Michigan |
-- |
-- |
| 131 |
Oneida County, New York |
-- |
-- |
| 131 |
Pasco County, Florida |
-- |
-- |
| 131 |
Peoria County, Illinois |
-- |
-- |
| 131 |
Philadelphia County, Pennsylvania |
-- |
-- |
| 131 |
Pinellas County, Florida |
-- |
-- |
| 131 |
Placer County, California |
-- |
-- |
| 131 |
Ramsey County, Minnesota |
-- |
-- |
| 131 |
San Mateo County, California |
-- |
-- |
| 131 |
Santa Barbara County, California |
-- |
-- |
| 131 |
Scott County, Minnesota |
-- |
-- |
| 131 |
Tarrant County, Texas |
-- |
-- |
| 131 |
Wayne County, Pennsylvania |
-- |
-- |
| 131 |
Williamson County, Tennessee |
-- |
-- |
| 131 |
Winnebago County, Illinois |
-- |
-- |
*
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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