| State | Number of Groups Reported in 2000 (and rank) | Largest Group in 2000 | ||
| 149 groups reported congregations or adherents | ||||
| Alabama | 80 | (27) | Southern Baptist Convention | |
| Alaska | 57 | (44) | Catholic Church | |
| Arizona | 94 | (11) | Catholic Church | |
| Arkansas | 75 | (29) | Southern Baptist Convention | |
| California | 111 | (5) | Catholic Church | |
| Colorado | 90 | (16) | Catholic Church | |
| Connecticut | 73 | (30) | Catholic Church | |
| Delaware | 62 | (40) | Catholic Church | |
| District Of Columbia | 51 | (50) | Catholic Church | |
| Florida | 108 | (8) | Catholic Church | |
| Georgia | 94 | (11) | Southern Baptist Convention | |
| Hawaii | 58 | (42) | Catholic Church | |
| Idaho | 65 | (36) | Church of Jesus Christ of Latter-day Saints | |
| Illinois | 120 | (1) | Catholic Church | |
| Indiana | 109 | (7) | Catholic Church | |
| Iowa | 89 | (18) | Catholic Church | |
| Kansas | 84 | (24) | Catholic Church | |
| Kentucky | 81 | (26) | Southern Baptist Convention | |
| Louisiana | 72 | (31) | Catholic Church | |
| Maine | 61 | (41) | Catholic Church | |
| Maryland | 94 | (11) | Catholic Church | |
| Massachusetts | 78 | (28) | Catholic Church | |
| Michigan | 118 | (2) | Catholic Church | |
| Minnesota | 90 | (16) | Catholic Church | |
| Mississippi | 63 | (39) | Southern Baptist Convention | |
| Missouri | 98 | (10) | Catholic Church | |
| Montana | 72 | (31) | Catholic Church | |
| Nebraska | 72 | (31) | Catholic Church | |
| Nevada | 58 | (42) | Catholic Church | |
| New Hampshire | 51 | (50) | Catholic Church | |
| New Jersey | 89 | (18) | Catholic Church | |
| New Mexico | 71 | (34) | Catholic Church | |
| New York | 110 | (6) | Catholic Church | |
| North Carolina | 86 | (22) | Southern Baptist Convention | |
| North Dakota | 54 | (46) | Catholic Church | |
| Ohio | 115 | (3) | Catholic Church | |
| Oklahoma | 83 | (25) | Southern Baptist Convention | |
| Oregon | 85 | (23) | Catholic Church | |
| Pennsylvania | 113 | (4) | Catholic Church | |
| Rhode Island | 54 | (46) | Catholic Church | |
| South Carolina | 65 | (36) | Southern Baptist Convention | |
| South Dakota | 65 | (36) | Catholic Church | |
| Tennessee | 88 | (20) | Southern Baptist Convention | |
| Texas | 99 | (9) | Catholic Church | |
| Utah | 57 | (44) | Church of Jesus Christ of Latter-day Saints | |
| Vermont | 54 | (46) | Catholic Church | |
| Virginia | 91 | (14) | Southern Baptist Convention | |
| Washington | 88 | (20) | Catholic Church | |
| West Virginia | 69 | (35) | United Methodist Church | |
| Wisconsin | 91 | (14) | Catholic Church | |
| Wyoming | 52 | (49) | Catholic Church | |