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
51	Johnston County	North Carolina	2.8%	256,448
52	St. Lucie County	Florida	2.8%	402,449
53	Iredell County	North Carolina	2.8%	211,798
54	Wilson County	Tennessee	2.8%	175,033
55	Polk County	Florida	2.7%	874,790
56	Logan County	Oklahoma	2.7%	55,473
57	Grimes County	Texas	2.7%	34,252
58	Charlotte County	Florida	2.7%	217,212
59	Lancaster County	South Carolina	2.7%	114,296
60	Lincoln County	South Dakota	2.7%	77,145
61	Franklin County	North Carolina	2.6%	82,037
62	Madison County	Ohio	2.6%	46,985
63	Lawrence County	South Dakota	2.6%	29,459
64	Boone County	Indiana	2.6%	80,689
65	Wakulla County	Florida	2.6%	38,089
66	Berkeley County	West Virginia	2.6%	139,522
67	King George County	Virginia	2.6%	29,646
68	Bastrop County	Texas	2.6%	118,908
69	Grainger County	Tennessee	2.6%	25,739
70	Fort Bend County	Texas	2.5%	975,191
71	Kendall County	Texas	2.5%	53,289
72	Washington County	Utah	2.5%	213,670
73	Harnett County	North Carolina	2.5%	150,137
74	Williams County	North Dakota	2.5%	41,767
75	Madison County	Alabama	2.5%	433,516
76	Caroline County	Virginia	2.5%	34,413
77	Geary County	Kansas	2.5%	36,338
78	Bartow County	Georgia	2.4%	120,800
79	Franklin County	Georgia	2.4%	25,948
80	Iron County	Utah	2.4%	67,141
81	Hancock County	Indiana	2.4%	90,969
82	Baldwin County	Alabama	2.3%	267,761
83	Webster County	Missouri	2.3%	43,054
84	McClain County	Oklahoma	2.3%	49,647
85	Hoke County	North Carolina	2.3%	56,939
86	Nassau County	Florida	2.3%	106,879
87	Medina County	Texas	2.3%	56,881
88	Sumter County	Florida	2.3%	157,772
89	Austin County	Texas	2.3%	33,625
90	Orange County	Virginia	2.3%	40,083
91	Wake County	North Carolina	2.3%	1,257,235
92	Burleson County	Texas	2.2%	20,549
93	Brookings County	South Dakota	2.2%	37,635
94	Currituck County	North Carolina	2.2%	33,158
95	Denton County	Texas	2.2%	1,069,346
96	Mecklenburg County	North Carolina	2.2%	1,233,383
97	Walton County	Georgia	2.2%	112,696
98	Delaware County	Ohio	2.2%	242,032
99	Sussex County	Delaware	2.2%	277,140
100	Bay County	Florida	2.2%	204,479

1830 ranked entries.

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