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Counties Ranked by Population: 2000
Source: U.S. Census Bureau, Census 2000 Redistricting Data (P.L. 94-171) Summary File and 1990 Census.Internet Release date: April 2, 2001Note: 1990 populations shown in this
table were originally published in 1990 Census reports and do not include subsequent revisions due to boundary or other changes.
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Rank
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State and
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(of 3,141
|
County
|
|
|
Census Population
|
|
Change, 1990 to 2000
|
|
|
counties)
|
FIPS codes
|
County Name
|
State
|
April 1, 1990
|
April 1, 2000
|
Number
|
Percent
|
|
|
|
|
|
|
|
|
|
|
1
|
06037
|
Los Angeles County
|
CA
|
8,863,164
|
9,519,338
|
656,174
|
7.4
|
|
2
|
17031
|
Cook County
|
IL
|
5,105,067
|
5,376,741
|
271,674
|
5.3
|
|
3
|
48201
|
Harris County
|
TX
|
2,818,199
|
3,400,578
|
582,379
|
20.7
|
|
4
|
04013
|
Maricopa County
|
AZ
|
2,122,101
|
3,072,149
|
950,048
|
44.8
|
|
5
|
06059
|
Orange County
|
CA
|
2,410,556
|
2,846,289
|
435,733
|
18.1
|
|
6
|
06073
|
San Diego County
|
CA
|
2,498,016
|
2,813,833
|
315,817
|
12.6
|
|
7
|
36047
|
Kings County
|
NY
|
2,300,664
|
2,465,326
|
164,662
|
7.2
|
|
8
|
12086
|
Miami-Dade County
|
FL
|
1,937,094
|
2,253,362
|
316,268
|
16.3
|
|
9
|
36081
|
Queens County
|
NY
|
1,951,598
|
2,229,379
|
277,781
|
14.2
|
|
10
|
48113
|
Dallas County
|
TX
|
1,852,810
|
2,218,899
|
366,089
|
19.8
|
|
11
|
26163
|
Wayne County
|
MI
|
2,111,687
|
2,061,162
|
-50,525
|
-2.4
|
|
12
|
53033
|
King County
|
WA
|
1,507,319
|
1,737,034
|
229,715
|
15.2
|
|
13
|
06071
|
San Bernardino County
|
CA
|
1,418,380
|
1,709,434
|
291,054
|
20.5
|
|
14
|
06085
|
Santa Clara County
|
CA
|
1,497,577
|
1,682,585
|
185,008
|
12.4
|
|
15
|
12011
|
Broward County
|
FL
|
1,255,488
|
1,623,018
|
367,530
|
29.3
|
|
16
|
06065
|
Riverside County
|
CA
|
1,170,413
|
1,545,387
|
374,974
|
32.0
|
|
17
|
36061
|
New York County
|
NY
|
1,487,536
|
1,537,195
|
49,659
|
3.3
|
|
18
|
42101
|
Philadelphia County
|
PA
|
1,585,577
|
1,517,550
|
-68,027
|
-4.3
|
|
19
|
25017
|
Middlesex County
|
MA
|
1,398,468
|
1,465,396
|
66,928
|
4.8
|
|
20
|
48439
|
Tarrant County
|
TX
|
1,170,103
|
1,446,219
|
276,116
|
23.6
|
|
21
|
06001
|
Alameda County
|
CA
|
1,279,182
|
1,443,741
|
164,559
|
12.9
|
|
22
|
36103
|
Suffolk County
|
NY
|
1,321,864
|
1,419,369
|
97,505
|
7.4
|
|
23
|
39035
|
Cuyahoga County
|
OH
|
1,412,140
|
1,393,978
|
-18,162
|
-1.3
|
|
24
|
48029
|
Bexar County
|
TX
|
1,185,394
|
1,392,931
|
207,537
|
17.5
|
|
25
|
32003
|
Clark County
|
NV
|
741,459
|
1,375,765
|
634,306
|
85.5
|
|
26
|
36059
|
Nassau County
|
NY
|
1,287,348
|
1,334,544
|
47,196
|
3.7
|
|
27
|
36005
|
Bronx County
|
NY
|
1,203,789
|
1,332,650
|
128,861
|
10.7
|
|
28
|
42003
|
Allegheny County
|
PA
|
1,336,449
|
1,281,666
|
-54,783
|
-4.1
|
|
29
|
06067
|
Sacramento County
|
CA
|
1,041,219
|
1,223,499
|
182,280
|
17.5
|
|
30
|
26125
|
Oakland County
|
MI
|
1,083,592
|
1,194,156
|
110,564
|
10.2
|
|
31
|
12099
|
Palm Beach County
|
FL
|
863,518
|
1,131,184
|
267,666
|
31.0
|
|
32
|
27053
|
Hennepin County
|
MN
|
1,032,431
|
1,116,200
|
83,769
|
8.1
|
|
33
|
39049
|
Franklin County
|
OH
|
961,437
|
1,068,978
|
107,541
|
11.2
|
|
34
|
29189
|
St. Louis County
|
MO
|
993,529
|
1,016,315
|
22,786
|
2.3
|
|
35
|
12057
|
Hillsborough County
|
FL
|
834,054
|
998,948
|
164,894
|
19.8
|
|
36
|
51059
|
Fairfax County
|
VA
|
818,584
|
969,749
|
151,165
|
18.5
|
|
37
|
36029
|
Erie County
|
NY
|
968,532
|
950,265
|
-18,267
|
-1.9
|
|
38
|
06013
|
Contra Costa County
|
CA
|
803,732
|
948,816
|
145,084
|
18.1
|
|
39
|
55079
|
Milwaukee County
|
WI
|
959,275
|
940,164
|
-19,111
|
-2.0
|
|
40
|
36119
|
Westchester County
|
NY
|
874,866
|
923,459
|
48,593
|
5.6
|
|
41
|
12103
|
Pinellas County
|
FL
|
851,659
|
921,482
|
69,823
|
8.2
|
|
42
|
17043
|
DuPage County
|
IL
|
781,666
|
904,161
|
122,495
|
15.7
|
|
43
|
49035
|
Salt Lake County
|
UT
|
725,956
|
898,387
|
172,431
|
23.8
|
|
44
|
47157
|
Shelby County
|
TN
|
826,330
|
897,472
|
71,142
|
8.6
|
|
45
|
12095
|
Orange County
|
FL
|
677,491
|
896,344
|
218,853
|
32.3
|
|
46
|
34003
|
Bergen County
|
NJ
|
825,380
|
884,118
|
58,738
|
7.1
|
|
47
|
09001
|
Fairfield County
|
CT
|
827,645
|
882,567
|
54,922
|
6.6
|
|
48
|
15003
|
Honolulu County
|
HI
|
836,231
|
876,156
|
39,925
|
4.8
|
|
49
|
24031
|
Montgomery County
|
MD
|
757,027
|
873,341
|
116,314
|
15.4
|
|
50
|
18097
|
Marion County
|
IN
|
797,159
|
860,454
|
63,295
|
7.9
|
|
51
|
09003
|
Hartford County
|
CT
|
851,783
|
857,183
|
5,400
|
0.6
|
|
52
|
39061
|
Hamilton County
|
OH
|
866,228
|
845,303
|
-20,925
|
-2.4
|
|
53
|
04019
|
Pima County
|
AZ
|
666,880
|
843,746
|
176,866
|
26.5
|
|
54
|
09009
|
New Haven County
|
CT
|
804,219
|
824,008
|
19,789
|
2.5
|
|
55
|
13121
|
Fulton County
|
GA
|
648,951
|
816,006
|
167,055
|
25.7
|
|
56
|
48453
|
Travis County
|
TX
|
576,407
|
812,280
|
235,873
|
40.9
|
|
57
|
24033
|
Prince George's County
|
MD
|
729,268
|
801,515
|
72,247
|
9.9
|
|
58
|
06019
|
Fresno County
|
CA
|
667,490
|
799,407
|
131,917
|
19.8
|
|
59
|
34013
|
Essex County
|
NJ
|
778,206
|
793,633
|
15,427
|
2.0
|
|
60
|
26099
|
Macomb County
|
MI
|
717,400
|
788,149
|
70,749
|
9.9
|
|
61
|
12031
|
Duval County
|
FL
|
672,971
|
778,879
|
105,908
|
15.7
|
|
62
|
06075
|
San Francisco County
|
CA
|
723,959
|
776,733
|
52,774
|
7.3
|
|
63
|
24005
|
Baltimore County
|
MD
|
692,134
|
754,292
|
62,158
|
9.0
|
|
64
|
06111
|
Ventura County
|
CA
|
669,016
|
753,197
|
84,181
|
12.6
|
|
65
|
25027
|
Worcester County
|
MA
|
709,705
|
750,963
|
41,258
|
5.8
|
|
66
|
34023
|
Middlesex County
|
NJ
|
671,780
|
750,162
|
78,382
|
11.7
|
|
67
|
42091
|
Montgomery County
|
PA
|
678,111
|
750,097
|
71,986
|
10.6
|
|
68
|
36055
|
Monroe County
|
NY
|
713,968
|
735,343
|
21,375
|
3.0
|
|
69
|
25009
|
Essex County
|
MA
|
670,080
|
723,419
|
53,339
|
8.0
|
|
70
|
06081
|
San Mateo County
|
CA
|
649,623
|
707,161
|
57,538
|
8.9
|
|
71
|
53053
|
Pierce County
|
WA
|
586,203
|
700,820
|
114,617
|
19.6
|
|
72
|
37119
|
Mecklenburg County
|
NC
|
511,433
|
695,454
|
184,021
|
36.0
|
|
73
|
21111
|
Jefferson County
|
KY
|
664,937
|
693,604
|
28,667
|
4.3
|
|
74
|
25025
|
Suffolk County
|
MA
|
663,906
|
689,807
|
25,901
|
3.9
|
|
75
|
48141
|
El Paso County
|
TX
|
591,610
|
679,622
|
88,012
|
14.9
|
|
76
|
13089
|
DeKalb County
|
GA
|
545,837
|
665,865
|
120,028
|
22.0
|
|
77
|
01073
|
Jefferson County
|
AL
|
651,525
|
662,047
|
10,522
|
1.6
|
|
78
|
06029
|
Kern County
|
CA
|
543,477
|
661,645
|
118,168
|
21.7
|
|
79
|
41051
|
Multnomah County
|
OR
|
583,887
|
660,486
|
76,599
|
13.1
|
|
80
|
40109
|
Oklahoma County
|
OK
|
599,611
|
660,448
|
60,837
|
10.1
|
|
81
|
29095
|
Jackson County
|
MO
|
633,232
|
654,880
|
21,648
|
3.4
|
|
82
|
24510
|
Baltimore city
|
MD
|
736,014
|
651,154
|
-84,860
|
-11.5
|
|
83
|
25021
|
Norfolk County
|
MA
|
616,087
|
650,308
|
34,221
|
5.6
|
|
84
|
17097
|
Lake County
|
IL
|
516,418
|
644,356
|
127,938
|
24.8
|
|
85
|
37183
|
Wake County
|
NC
|
423,380
|
627,846
|
204,466
|
48.3
|
|
86
|
44007
|
Providence County
|
RI
|
596,270
|
621,602
|
25,332
|
4.2
|
|
87
|
34025
|
Monmouth County
|
NJ
|
553,124
|
615,301
|
62,177
|
11.2
|
|
88
|
34017
|
Hudson County
|
NJ
|
553,099
|
608,975
|
55,876
|
10.1
|
|
89
|
13067
|
Cobb County
|
GA
|
447,745
|
607,751
|
160,006
|
35.7
|
|
90
|
53061
|
Snohomish County
|
WA
|
465,642
|
606,024
|
140,382
|
30.1
|
|
91
|
42017
|
Bucks County
|
PA
|
541,174
|
597,635
|
56,461
|
10.4
|
|
92
|
13135
|
Gwinnett County
|
GA
|
352,910
|
588,448
|
235,538
|
66.7
|
|
93
|
26081
|
Kent County
|
MI
|
500,631
|
574,335
|
73,704
|
14.7
|
|
94
|
11001
|
District of Columbia
|
DC
|
606,900
|
572,059
|
-34,841
|
-5.7
|
|
95
|
47037
|
Davidson County
|
TN
|
510,784
|
569,891
|
59,107
|
11.6
|
|
96
|
48215
|
Hidalgo County
|
TX
|
383,545
|
569,463
|
185,918
|
48.5
|
|
97
|
06077
|
San Joaquin County
|
CA
|
480,628
|
563,598
|
82,970
|
17.3
|
|
98
|
40143
|
Tulsa County
|
OK
|
503,341
|
563,299
|
59,958
|
11.9
|
|
99
|
39113
|
Montgomery County
|
OH
|
573,809
|
559,062
|
-14,747
|
-2.6
|
|
100
|
35001
|
Bernalillo County
|
NM
|
480,577
|
556,678
|
76,101
|
15.8
|
|
101
|
08031
|
Denver County
|
CO
|
467,610
|
554,636
|
87,026
|
18.6
|
|
102
|
42045
|
Delaware County
|
PA
|
547,651
|
550,864
|
3,213
|
0.6
|
|
103
|
39153
|
Summit County
|
OH
|
514,990
|
542,899
|
27,909
|
5.4
|
|
104
|
25005
|
Bristol County
|
MA
|
506,325
|
534,678
|
28,353
|
5.6
|
|
105
|
08059
|
Jefferson County
|
CO
|
438,430
|
527,056
|
88,626
|
20.2
|
|
106
|
34039
|
Union County
|
NJ
|
493,819
|
522,541
|
28,722
|
5.8
|
|
107
|
08041
|
El Paso County
|
CO
|
397,014
|
516,929
|
119,915
|
30.2
|
|
108
|
27123
|
Ramsey County
|
MN
|
485,765
|
511,035
|
25,270
|
5.2
|
|
109
|
34029
|
Ocean County
|
NJ
|
433,203
|
510,916
|
77,713
|
17.9
|
|
110
|
34007
|
Camden County
|
NJ
|
502,824
|
508,932
|
6,108
|
1.2
|
|
111
|
17197
|
Will County
|
IL
|
357,313
|
502,266
|
144,953
|
40.6
|
|
112
|
10003
|
New Castle County
|
DE
|
441,946
|
500,265
|
58,319
|
13.2
|
|
113
|
48085
|
Collin County
|
TX
|
264,036
|
491,675
|
227,639
|
86.2
|
|
114
|
24003
|
Anne Arundel County
|
MD
|
427,239
|
489,656
|
62,417
|
14.6
|
|
115
|
34031
|
Passaic County
|
NJ
|
453,060
|
489,049
|
35,989
|
7.9
|
|
116
|
08005
|
Arapahoe County
|
CO
|
391,511
|
487,967
|
96,456
|
24.6
|
|
117
|
22071
|
Orleans Parish
|
LA
|
496,938
|
484,674
|
-12,264
|
-2.5
|
|
118
|
18089
|
Lake County
|
IN
|
475,594
|
484,564
|
8,970
|
1.9
|
|
119
|
12105
|
Polk County
|
FL
|
405,382
|
483,924
|
78,542
|
19.4
|
|
120
|
12009
|
Brevard County
|
FL
|
398,978
|
476,230
|
77,252
|
19.4
|
|
121
|
25023
|
Plymouth County
|
MA
|
435,276
|
472,822
|
37,546
|
8.6
|
|
122
|
42071
|
Lancaster County
|
PA
|
422,822
|
470,658
|
47,836
|
11.3
|
|
123
|
34027
|
Morris County
|
NJ
|
421,353
|
470,212
|
48,859
|
11.6
|
|
124
|
31055
|
Douglas County
|
NE
|
416,444
|
463,585
|
47,141
|
11.3
|
|
125
|
06097
|
Sonoma County
|
CA
|
388,222
|
458,614
|
70,392
|
18.1
|
|
126
|
36067
|
Onondaga County
|
NY
|
468,973
|
458,336
|
-10,637
|
-2.3
|
|
127
|
25013
|
Hampden County
|
MA
|
456,310
|
456,228
|
-82
|
0.0
|
|
128
|
22051
|
Jefferson Parish
|
LA
|
448,306
|
455,466
|
7,160
|
1.6
|
|
129
|
39095
|
Lucas County
|
OH
|
462,361
|
455,054
|
-7,307
|
-1.6
|
|
130
|
20173
|
Sedgwick County
|
KS
|
403,662
|
452,869
|
49,207
|
12.2
|
|
131
|
20091
|
Johnson County
|
KS
|
355,054
|
451,086
|
96,032
|
27.0
|
|
132
|
06099
|
Stanislaus County
|
CA
|
370,522
|
446,997
|
76,475
|
20.6
|
|
133
|
41067
|
Washington County
|
OR
|
311,554
|
445,342
|
133,788
|
42.9
|
|
134
|
36085
|
Richmond County
|
NY
|
378,977
|
443,728
|
64,751
|
17.1
|
|
135
|
12127
|
Volusia County
|
FL
|
370,712
|
443,343
|
72,631
|
19.6
|
|
136
|
12071
|
Lee County
|
FL
|
335,113
|
440,888
|
105,775
|
31.6
|
|
137
|
26049
|
Genesee County
|
MI
|
430,459
|
436,141
|
5,682
|
1.3
|
|
138
|
42029
|
Chester County
|
PA
|
376,396
|
433,501
|
57,105
|
15.2
|
|
139
|
48121
|
Denton County
|
TX
|
273,525
|
432,976
|
159,451
|
58.3
|
|
140
|
55025
|
Dane County
|
WI
|
367,085
|
426,526
|
59,441
|
16.2
|
|
141
|
51810
|
Virginia Beach city
|
VA
|
393,069
|
425,257
|
32,188
|
8.2
|
|
142
|
34005
|
Burlington County
|
NJ
|
395,066
|
423,394
|
28,328
|
7.2
|
|
143
|
37081
|
Guilford County
|
NC
|
347,420
|
421,048
|
73,628
|
21.2
|
|
144
|
53063
|
Spokane County
|
WA
|
361,364
|
417,939
|
56,575
|
15.7
|
|
145
|
22033
|
East Baton Rouge Parish
|
LA
|
380,105
|
412,852
|
32,747
|
8.6
|
|
146
|
17089
|
Kane County
|
IL
|
317,471
|
404,119
|
86,648
|
27.3
|
|
147
|
06053
|
Monterey County
|
CA
|
355,660
|
401,762
|
46,102
|
13.0
|
|
148
|
01097
|
Mobile County
|
AL
|
378,643
|
399,843
|
21,200
|
5.6
|
|
149
|
06083
|
Santa Barbara County
|
CA
|
369,608
|
399,347
|
29,739
|
8.0
|
|
150
|
06095
|
Solano County
|
CA
|
340,421
|
394,542
|
54,121
|
15.9
|
|
151
|
47093
|
Knox County
|
TN
|
335,749
|
382,032
|
46,283
|
13.8
|
|
152
|
42133
|
York County
|
PA
|
339,574
|
381,751
|
42,177
|
12.4
|
|
153
|
33011
|
Hillsborough County
|
NH
|
336,073
|
380,841
|
44,768
|
13.3
|
|
154
|
45045
|
Greenville County
|
SC
|
320,167
|
379,616
|
59,449
|
18.6
|
|
155
|
39151
|
Stark County
|
OH
|
367,585
|
378,098
|
10,513
|
2.9
|
|
156
|
19153
|
Polk County
|
IA
|
327,140
|
374,601
|
47,461
|
14.5
|
|
157
|
42011
|
Berks County
|
PA
|
336,523
|
373,638
|
37,115
|
11.0
|
|
158
|
42129
|
Westmoreland County
|
PA
|
370,321
|
369,993
|
-328
|
-0.1
|
|
159
|
49049
|
Utah County
|
UT
|
263,590
|
368,536
|
104,946
|
39.8
|
|
160
|
06107
|
Tulare County
|
CA
|
311,921
|
368,021
|
56,100
|
18.0
|
|
161
|
12117
|
Seminole County
|
FL
|
287,529
|
365,196
|
77,667
|
27.0
|
|
162
|
08001
|
Adams County
|
CO
|
265,038
|
363,857
|
98,819
|
37.3
|
|
163
|
05119
|
Pulaski County
|
AR
|
349,660
|
361,474
|
11,814
|
3.4
|
|
164
|
55133
|
Waukesha County
|
WI
|
304,715
|
360,767
|
56,052
|
18.4
|
|
165
|
27037
|
Dakota County
|
MN
|
275,227
|
355,904
|
80,677
|
29.3
|
|
166
|
48157
|
Fort Bend County
|
TX
|
225,421
|
354,452
|
129,031
|
57.2
|
|
167
|
34021
|
Mercer County
|
NJ
|
325,824
|
350,761
|
24,937
|
7.7
|
|
168
|
29510
|
St. Louis city
|
MO
|
396,685
|
348,189
|
-48,496
|
-12.2
|
|
169
|
53011
|
Clark County
|
WA
|
238,053
|
345,238
|
107,185
|
45.0
|
|
170
|
12101
|
Pasco County
|
FL
|
281,131
|
344,765
|
63,634
|
22.6
|
|
171
|
36071
|
Orange County
|
NY
|
307,647
|
341,367
|
33,720
|
11.0
|
|
172
|
32031
|
Washoe County
|
NV
|
254,667
|
339,486
|
84,819
|
33.3
|
|
173
|
41005
|
Clackamas County
|
OR
|
278,850
|
338,391
|
59,541
|
21.4
|
|
174
|
48061
|
Cameron County
|
TX
|
260,120
|
335,227
|
75,107
|
28.9
|
|
175
|
39017
|
Butler County
|
OH
|
291,479
|
332,807
|
41,328
|
14.2
|
|
176
|
18003
|
Allen County
|
IN
|
300,836
|
331,849
|
31,013
|
10.3
|
|
177
|
12115
|
Sarasota County
|
FL
|
277,776
|
325,957
|
48,181
|
17.3
|
|
178
|
41039
|
Lane County
|
OR
|
282,912
|
322,959
|
40,047
|
14.2
|
|
179
|
26161
|
Washtenaw County
|
MI
|
282,937
|
322,895
|
39,958
|
14.1
|
|
180
|
45079
|
Richland County
|
SC
|
285,720
|
320,677
|
34,957
|
12.2
|
|
181
|
42079
|
Luzerne County
|
PA
|
328,149
|
319,250
|
-8,899
|
-2.7
|
|
182
|
48355
|
Nueces County
|
TX
|
291,145
|
313,645
|
22,500
|
7.7
|
|
183
|
42077
|
Lehigh County
|
PA
|
291,130
|
312,090
|
20,960
|
7.2
|
|
184
|
45019
|
Charleston County
|
SC
|
295,039
|
309,969
|
14,930
|
5.1
|
|
185
|
47065
|
Hamilton County
|
TN
|
285,536
|
307,896
|
22,360
|
7.8
|
|
186
|
37067
|
Forsyth County
|
NC
|
265,878
|
306,067
|
40,189
|
15.1
|
|
187
|
37051
|
Cumberland County
|
NC
|
274,566
|
302,963
|
28,397
|
10.3
|
|
188
|
16001
|
| |