Fastest-growing counties in the US
Compare annual population growth in US counties and county equivalents.
U.S. Census Bureau Population EstimatesPeriod: July 1, 2024–July 1, 2025 · Vintage 2025Retrieved 2026-10-05T08:10:35+00:00
Percent change = (current July 1 population − previous July 1 population) / previous population × 100. Both estimates use the same Census vintage. Includes counties and county equivalents with at least 20,000 residents in the previous year. This is observed population change, not a forecast.
Ranks are competition ranks computed across the full filtered set.
| Rank | Name | State | Growth | Population |
|---|---|---|---|---|
| 1051 | Alachua County | Florida | 0.2% | 290,028 |
| 1052 | Marion County | Indiana | 0.2% | 992,196 |
| 1053 | Umatilla County | Oregon | 0.2% | 81,119 |
| 1054 | Hampden County | Massachusetts | 0.2% | 464,338 |
| 1055 | Wayne County | Michigan | 0.2% | 1,769,038 |
| 1056 | Rock Island County | Illinois | 0.2% | 141,869 |
| 1057 | Linn County | Oregon | 0.2% | 132,843 |
| 1058 | Lancaster County | Pennsylvania | 0.2% | 563,159 |
| 1059 | Middlesex County | New Jersey | 0.2% | 883,335 |
| 1060 | Lincoln County | Maine | 0.2% | 36,595 |
| 1061 | Cibola County | New Mexico | 0.2% | 26,807 |
| 1062 | Stephens County | Oklahoma | 0.2% | 44,310 |
| 1063 | Lee County | Illinois | 0.2% | 32,914 |
| 1064 | Hocking County | Ohio | 0.2% | 27,512 |
| 1065 | Cleveland County | Oklahoma | 0.2% | 303,973 |
| 1066 | Putnam County | New York | 0.2% | 99,028 |
| 1067 | Cole County | Missouri | 0.2% | 77,908 |
| 1068 | Morgan County | Alabama | 0.2% | 126,483 |
| 1069 | Hillsborough County | Florida | 0.2% | 1,574,115 |
| 1070 | Athens County | Ohio | 0.2% | 63,197 |
| 1071 | Llano County | Texas | 0.2% | 23,353 |
| 1072 | Martin County | North Carolina | 0.2% | 21,601 |
| 1073 | Suffolk County | New York | 0.2% | 1,546,090 |
| 1074 | Floyd County | Georgia | 0.2% | 101,378 |
| 1075 | DuPage County | Illinois | 0.2% | 934,298 |
| 1076 | Burke County | Georgia | 0.2% | 24,408 |
| 1077 | Randolph County | Illinois | 0.2% | 29,921 |
| 1078 | Fresno County | California | 0.2% | 1,035,456 |
| 1079 | Ellis County | Kansas | 0.2% | 29,075 |
| 1080 | Dubois County | Indiana | 0.2% | 44,016 |
| 1081 | Chaffee County | Colorado | 0.2% | 20,831 |
| 1082 | Ramsey County | Minnesota | 0.2% | 541,623 |
| 1083 | Ashland County | Ohio | 0.2% | 52,523 |
| 1084 | Caroline County | Maryland | 0.2% | 34,116 |
| 1085 | Clinton County | Pennsylvania | 0.2% | 37,870 |
| 1086 | Bibb County | Alabama | 0.2% | 22,262 |
| 1087 | Douglas County | Wisconsin | 0.2% | 43,990 |
| 1088 | Grays Harbor County | Washington | 0.2% | 78,144 |
| 1089 | Beaver County | Pennsylvania | 0.2% | 166,032 |
| 1090 | Wayne County | Ohio | 0.2% | 116,758 |
| 1091 | Chattooga County | Georgia | 0.2% | 25,300 |
| 1092 | Mineral County | West Virginia | 0.2% | 26,792 |
| 1093 | Tuscarawas County | Ohio | 0.2% | 92,373 |
| 1094 | Merced County | California | 0.2% | 297,260 |
| 1095 | Kosciusko County | Indiana | 0.2% | 80,892 |
| 1096 | Talladega County | Alabama | 0.1% | 81,603 |
| 1097 | Susquehanna County | Pennsylvania | 0.1% | 38,237 |
| 1098 | Tallapoosa County | Alabama | 0.1% | 40,953 |
| 1099 | Lower Connecticut River Valley Planning Region | Connecticut | 0.1% | 177,311 |
| 1100 | Wells County | Indiana | 0.1% | 28,883 |
1830 ranked entries.