 |
| Rank |
Geographic Area |
Population estimates |
Change, 2003 to 2004 |
| July 1, 2004 |
July 1, 2003 |
Number |
Percent |
| 1 |
Flagler County |
FL |
69,005 |
62,696 |
6,309 |
10.1 |
| 2 |
Kendall County |
IL |
72,548 |
67,018 |
5,530 |
8.3 |
| 3 |
Loudoun County |
VA |
239,156 |
221,150 |
18,006 |
8.1 |
| 4 |
Hanson County |
SD |
3,786 |
3,508 |
278 |
7.9 |
| 5 |
Lincoln County |
SD |
31,437 |
29,247 |
2,190 |
7.5 |
| 6 |
Lampasas County |
TX |
20,718 |
19,306 |
1,412 |
7.3 |
| 7 |
Lyon County |
NV |
43,230 |
40,309 |
2,921 |
7.2 |
| 8 |
Camden County |
NC |
8,437 |
7,867 |
570 |
7.2 |
| 9 |
St. Johns County |
FL |
152,473 |
142,949 |
9,524 |
6.7 |
| 10 |
Dallas County |
IA |
49,591 |
46,519 |
3,072 |
6.6 |
| 11 |
Osceola County |
FL |
219,544 |
205,993 |
13,551 |
6.6 |
| 12 |
Newton County |
GA |
81,524 |
76,534 |
4,990 |
6.5 |
| 13 |
Rockwall County |
TX |
58,260 |
54,724 |
3,536 |
6.5 |
| 14 |
Henry County |
GA |
159,506 |
150,165 |
9,341 |
6.2 |
| 15 |
Forsyth County |
GA |
131,865 |
124,213 |
7,652 |
6.2 |
| 16 |
Douglas County |
CO |
237,963 |
224,419 |
13,544 |
6.0 |
| 17 |
Currituck County |
NC |
22,067 |
20,813 |
1,254 |
6.0 |
| 18 |
St. Lucie County |
FL |
226,816 |
214,031 |
12,785 |
6.0 |
| 19 |
Paulding County |
GA |
105,936 |
100,037 |
5,899 |
5.9 |
| 20 |
Storey County |
NV |
3,737 |
3,532 |
205 |
5.8 |
| 21 |
Golden Valley County |
MT |
1,117 |
1,057 |
60 |
5.7 |
| 22 |
Lake County |
FL |
260,788 |
246,844 |
13,944 |
5.6 |
| 23 |
Matanuska-Susitna Borough |
AK |
72,278 |
68,414 |
3,864 |
5.6 |
| 24 |
Barrow County |
GA |
56,418 |
53,420 |
2,998 |
5.6 |
| 25 |
Franklin County |
WA |
59,472 |
56,339 |
3,133 |
5.6 |
| 26 |
Saguache County |
CO |
7,029 |
6,668 |
361 |
5.4 |
| 27 |
Scott County |
MN |
114,794 |
108,910 |
5,884 |
5.4 |
| 28 |
Fort Bend County |
TX |
442,620 |
419,995 |
22,625 |
5.4 |
| 29 |
Union County |
NC |
153,652 |
145,980 |
7,672 |
5.3 |
| 30 |
Nye County |
NV |
37,714 |
35,832 |
1,882 |
5.3 |
| 31 |
Bryan County |
GA |
27,535 |
26,165 |
1,370 |
5.2 |
| 32 |
Union County |
FL |
14,673 |
13,943 |
730 |
5.2 |
| 33 |
Douglas County |
GA |
107,217 |
101,905 |
5,312 |
5.2 |
| 34 |
Washington County |
UT |
109,924 |
104,498 |
5,426 |
5.2 |
| 35 |
Delaware County |
OH |
142,503 |
135,474 |
7,029 |
5.2 |
| 36 |
Montgomery County |
TX |
362,382 |
344,651 |
17,731 |
5.1 |
| 37 |
Collin County |
TX |
627,938 |
597,307 |
30,631 |
5.1 |
| 38 |
Pasco County |
FL |
407,799 |
388,224 |
19,575 |
5.0 |
| 39 |
Riverside County |
CA |
1,871,950 |
1,782,822 |
89,128 |
5.0 |
| 40 |
Mineral County |
CO |
932 |
888 |
44 |
5.0 |
| 41 |
Hamilton County |
IN |
231,760 |
220,864 |
10,896 |
4.9 |
| 42 |
DeSoto County |
MS |
130,587 |
124,483 |
6,104 |
4.9 |
| 43 |
Roberts County |
TX |
863 |
823 |
40 |
4.9 |
| 44 |
Will County |
IL |
613,849 |
585,482 |
28,367 |
4.8 |
| 45 |
Hoke County |
NC |
39,262 |
37,452 |
1,810 |
4.8 |
| 46 |
Pinal County |
AZ |
214,359 |
204,529 |
9,830 |
4.8 |
| 47 |
Clark County |
NV |
1,650,671 |
1,575,386 |
75,285 |
4.8 |
| 48 |
Hernando County |
FL |
150,370 |
143,514 |
6,856 |
4.8 |
| 49 |
Clay County |
FL |
164,394 |
156,995 |
7,399 |
4.7 |
| 50 |
St. Francois County |
MO |
60,724 |
58,003 |
2,721 |
4.7 |
| 51 |
Manassas Park city |
VA |
11,519 |
11,005 |
514 |
4.7 |
| 52 |
Sublette County |
WY |
6,654 |
6,358 |
296 |
4.7 |
| 53 |
Jackson County |
GA |
49,540 |
47,337 |
2,203 |
4.7 |
| 54 |
Cherokee County |
GA |
174,680 |
166,947 |
7,733 |
4.6 |
| 55 |
SE Fairbanks Census Area |
AK |
5,997 |
5,733 |
264 |
4.6 |
| 56 |
Berkeley County |
WV |
89,362 |
85,439 |
3,923 |
4.6 |
| 57 |
Comal County |
TX |
91,806 |
87,777 |
4,029 |
4.6 |
| 58 |
Williamson County |
TX |
317,938 |
304,024 |
13,914 |
4.6 |
| 59 |
Placer County |
CA |
307,004 |
293,630 |
13,374 |
4.6 |
| 60 |
Santa Rosa County |
FL |
138,276 |
132,266 |
6,010 |
4.5 |
| 61 |
Walton County |
FL |
48,477 |
46,388 |
2,089 |
4.5 |
| 62 |
Mohave County |
AZ |
179,981 |
172,248 |
7,733 |
4.5 |
| 63 |
King George County |
VA |
19,355 |
18,526 |
829 |
4.5 |
| 64 |
Sherburne County |
MN |
78,762 |
75,399 |
3,363 |
4.5 |
| 65 |
Lee County |
FL |
514,295 |
492,489 |
21,806 |
4.4 |
| 66 |
Christian County |
MO |
64,273 |
61,564 |
2,709 |
4.4 |
| 67 |
Pike County |
GA |
15,750 |
15,088 |
662 |
4.4 |
| 68 |
Effingham County |
GA |
44,661 |
42,786 |
1,875 |
4.4 |
| 69 |
Benton County |
AR |
179,756 |
172,263 |
7,493 |
4.3 |
| 70 |
Boone County |
KY |
101,354 |
97,161 |
4,193 |
4.3 |
| 71 |
Suffolk city |
VA |
76,586 |
73,423 |
3,163 |
4.3 |
| 72 |
New Kent County |
VA |
15,552 |
14,917 |
635 |
4.3 |
| 73 |
Hinsdale County |
CO |
810 |
777 |
33 |
4.2 |
| 74 |
Wakulla County |
FL |
27,179 |
26,072 |
1,107 |
4.2 |
| 75 |
James City County |
VA |
55,502 |
53,244 |
2,258 |
4.2 |
| 76 |
St. Croix County |
WI |
74,339 |
71,330 |
3,009 |
4.2 |
| 77 |
Stafford County |
VA |
114,781 |
110,236 |
4,545 |
4.1 |
| 78 |
Boone County |
IL |
48,490 |
46,590 |
1,900 |
4.1 |
| 79 |
Sanders County |
MT |
10,945 |
10,520 |
425 |
4.0 |
| 80 |
Kootenai County |
ID |
122,350 |
117,614 |
4,736 |
4.0 |
| 81 |
Culpeper County |
VA |
40,192 |
38,640 |
1,552 |
4.0 |
| 82 |
Gwinnett County |
GA |
700,794 |
673,774 |
27,020 |
4.0 |
| 83 |
Fayette County |
TN |
33,624 |
32,330 |
1,294 |
4.0 |
| 84 |
Canyon County |
ID |
158,038 |
151,998 |
6,040 |
4.0 |
| 85 |
Wright County |
MN |
106,889 |
102,820 |
4,069 |
4.0 |
| 86 |
Madera County |
CA |
138,951 |
133,696 |
5,255 |
3.9 |
| 87 |
Prince William County |
VA |
336,586 |
323,867 |
12,719 |
3.9 |
| 88 |
Denton County |
TX |
530,597 |
510,616 |
19,981 |
3.9 |
| 89 |
Wilson County |
TX |
36,726 |
35,343 |
1,383 |
3.9 |
| 90 |
Kaufman County |
TX |
85,377 |
82,175 |
3,202 |
3.9 |
| 91 |
Spotsylvania County |
VA |
111,850 |
107,682 |
4,168 |
3.9 |
| 92 |
Hendricks County |
IN |
123,476 |
118,880 |
4,596 |
3.9 |
| 93 |
Okeechobee County |
FL |
38,988 |
37,537 |
1,451 |
3.9 |
| 94 |
Rutherford County |
TN |
210,025 |
202,225 |
7,800 |
3.9 |
| 95 |
Carver County |
MN |
82,122 |
79,106 |
3,016 |
3.8 |
| 96 |
Deschutes County |
OR |
134,479 |
129,542 |
4,937 |
3.8 |
| 97 |
Warren County |
OH |
189,276 |
182,330 |
6,946 |
3.8 |
| 98 |
Williamson County |
TN |
146,935 |
141,551 |
5,384 |
3.8 |
| 99 |
Burnet County |
TX |
40,286 |
38,818 |
1,468 |
3.8 |
| 100 |
Shelby County |
AL |
165,677 |
159,641 |
6,036 |
3.8 |
|  |