US Counties Larger than 100,000
Ranked by Population: 1997

Source: US Census Bureau

Rank County 1990 1997 % Change Census ID#
1 Los Angeles County, CA.......... 8,863,052 9,145,219 3.2% 6037
2 Cook County, IL. 5,105,044 5,076,786 -0.6% 17031
3 Harris County, TX. 2,818,101 3,158,095 12.1% 48201
4 San Diego County, CA. 2,498,016 2,722,650 9.0% 6073
5 Maricopa County, AZ 2,122,101 2,696,198 27.1% 4013
6 Orange County, CA. 2,410,668 2,674,091 10.9% 6059
7 Kings County, NY 2,300,664 2,240,384 -2.6% 36047
8 Wayne County, MI 2,111,687 2,127,087 0.7% 26163
9 Dade County, FL 1,937,194 2,044,600 5.5% 12025
10 Dallas County, TX. 1,852,810 2,023,140 9.2% 48113
11 Queens County, NY. 1,951,598 1,975,676 1.2% 36081
12 King County, WA 1,507,305 1,632,852 8.3% 53033
13 San Bernardino County, CA 1,418,380 1,615,817 13.9% 6071
14 Santa Clara County, CA 1,497,577 1,609,037 7.4% 6085
15 New York County, NY 1,487,536 1,536,220 3.3% 36061
16 Broward County, FL 1,255,531 1,470,758 17.1% 12011
17 Philadelphia County, PA. 1,585,577 1,451,372 -8.5% 42101
18 Riverside County, CA. 1,170,413 1,447,791 23.7% 6065
19 Middlesex County, MA. 1,398,468 1,417,868 1.4% 25017
20 Cuyahoga County, OH 1,412,140 1,386,803 -1.8% 39035
21 Alameda County, CA 1,304,346 1,371,067 5.1% 6001
22 Suffolk County, NY 1,321,768 1,362,616 3.1% 36103
23 Bexar County, TX 1,185,394 1,332,547 12.4% 48029
24 Tarrant County, TX 1,170,103 1,327,332 13.4% 48439
25 Nassau County, NY. 1,287,444 1,303,686 1.3% 36059
26 Allegheny County, PA. 1,336,449 1,280,624 -4.2% 42003
27 Bronx County, NY 1,203,789 1,187,984 -1.3% 36005
28 Oakland County, MI 1,083,592 1,166,512 7.7% 26125
29 Sacramento County, CA 1,041,219 1,125,976 8.1% 6067
30 Clark County, NV 741,368 1,106,047 49.2% 32003
31 Hennepin County, MN 1,032,431 1,053,178 2.0% 27053
32 Palm Beach County, FL 863,503 1,018,524 18.0% 12099
33 Franklin County, OH 961,437 1,017,274 5.8% 39049
34 St. Louis County, MO. 993,508 1,003,595 1.0% 29189
35 Erie County, NY 968,584 944,472 -2.5% 36029
36 Fairfax County, VA 818,358 914,259 11.7% 51059
37 Hillsborough County, FL. 834,054 909,444 9.0% 12057
38 Milwaukee County, WI. 959,275 908,940 -5.2% 55079
39 Contra Costa County, CA. 803,732 899,258 11.9% 6013
40 Westchester County, NY 874,866 896,221 2.4% 36119
41 Pinellas County, FL 851,659 871,766 2.4% 12103
42 DuPage County, IL. 781,689 870,378 11.3% 17043
43 Honolulu County, HI 836,231 869,857 4.0% 15003
44 Shelby County, TN. 826,330 865,970 4.8% 47157
45 Hamilton County, OH 866,228 851,599 -1.7% 39061
46 Bergen County, NJ. 825,380 851,344 3.1% 34003
47 Salt Lake County, UT. 725,956 839,896 15.7% 49035
48 Fairfield County, CT. 827,645 833,315 0.7% 9001
49 Montgomery County, MD 762,207 826,766 8.5% 24031
50 Hartford County, CT 851,783 825,141 -3.1% 9003
51 Marion County, IN. 797,159 813,670 2.1% 18097
52 New Haven County, CT. 804,219 792,200 -1.5% 9009
53 Orange County, FL. 677,491 783,974 15.7% 12095
54 Macomb County, MI. 717,400 783,451 9.2% 26099
55 Pima County, AZ 666,957 780,150 17.0% 4019
56 Prince George's County, MD. 723,373 770,633 6.5% 24033
57 Fresno County, CA. 667,490 754,396 13.0% 6019
58 Essex County, NJ 777,964 750,842 -3.5% 34013
59 Duval County, FL 672,971 732,622 8.9% 12031
60 San Francisco County, CA 723,959 732,307 1.2% 6075
61 Ventura County, CA 669,016 725,968 8.5% 6111
62 Worcester County, MA. 709,705 725,540 2.2% 25027
63 Fulton County, GA. 648,779 722,540 11.4% 13121
64 Baltimore County, MD. 692,134 720,662 4.1% 24005
65 Monroe County, NY. 713,968 717,780 0.5% 36055
66 Montgomery County, PA 678,193 712,466 5.1% 42091
67 Middlesex County, NJ. 671,811 708,118 5.4% 34023
68 El Paso County, TX 591,610 701,576 18.6% 48141
69 San Mateo County, CA. 649,623 694,006 6.8% 6081
70 Travis County, TX. 576,407 693,606 20.3% 48453
71 Essex County, MA 670,080 691,400 3.2% 25009
72 Jefferson County, KY. 665,123 670,622 0.8% 21111
73 Pierce County, WA. 586,203 664,776 13.4% 53053
74 Jefferson County, AL. 651,520 658,664 1.1% 1073
75 Baltimore city, MD 736,014 657,256 -10.7% 24510
76 Jackson County, MO 633,234 647,973 2.3% 29095
77 Suffolk County, MA 663,906 642,900 -3.2% 25025
78 Norfolk County, MA 616,087 639,243 3.8% 25021
79 Oklahoma County, OK 599,611 630,388 5.1% 40109
80 Kern County, CA 544,981 628,605 15.3% 6029
81 Multnomah County, OR. 583,887 624,619 7.0% 41051
82 Mecklenburg County, NC 511,481 613,310 19.9% 37119
83 Monmouth County, NJ 553,093 596,250 7.8% 34025
84 Lake County, IL 516,418 594,799 15.2% 17097
85 DeKalb County, GA. 546,171 587,730 7.6% 13089
86 Bucks County, PA 541,174 582,633 7.7% 42017
87 Providence County, RI 596,270 574,429 -3.7% 44007
88 Snohomish County, WA. 465,628 564,610 21.3% 53061
89 Montgomery County, OH 573,809 561,303 -2.2% 39113
90 Wake County, NC 426,300 551,588 29.4% 37183
91 Hudson County, NJ. 553,099 551,451 -0.3% 34017
92 Cobb County, GA 447,745 551,059 23.1% 13067
93 Delaware County, PA 547,651 543,010 -0.8% 42045
94 San Joaquin County, CA 480,628 542,504 12.9% 6077
95 Kent County, MI 500,631 539,425 7.7% 26081
96 Tulsa County, OK 503,341 535,896 6.5% 40143
97 Davidson County, TN 510,786 533,689 4.5% 47037
98 Summit County, OH. 514,990 531,650 3.2% 39153
99 District of Columbia, DC 606,900 528,964 -12.8% 11001
100 Bernalillo County, NM 480,577 526,088 9.5% 35001
101 Bristol County, MA 506,325 515,501 1.8% 25005
102 Hidalgo County, TX 383,545 510,922 33.2% 48215
103 Camden County, NJ. 502,824 504,591 0.4% 34007
104 Gwinnett County, GA 352,910 500,816 41.9% 13135
105 Denver County, CO. 467,610 498,985 6.7% 8031
106 Union County, NJ 493,819 498,148 0.9% 34039
107 Jefferson County, CO. 438,430 496,656 13.3% 8059
108 Ramsey County, MN. 485,783 484,354 -0.3% 27123
109 Passaic County, NJ 470,864 484,049 2.8% 34031
110 Ocean County, NJ 433,203 480,721 11.0% 34029
111 El Paso County, CO 397,014 480,041 20.9% 8041
112 Lake County, IN 475,594 479,339 0.8% 18089
113 New Castle County, DE 441,946 474,838 7.4% 10003
114 Anne Arundel County, MD. 427,239 470,028 10.0% 24003
115 Orleans Parish, LA 496,938 469,089 -5.6% 22071
116 Arapahoe County, CO 391,511 463,201 18.3% 8005
117 Plymouth County, MA 435,276 462,159 6.2% 25023
118 Onondaga County, NY 468,973 461,490 -1.6% 36067
119 Brevard County, FL 398,978 460,977 15.5% 12009
120 Morris County, NJ. 421,361 454,154 7.8% 34027
121 Lancaster County, PA. 422,822 454,063 7.4% 42071
122 Lucas County, OH 462,361 451,325 -2.4% 39095
123 Jefferson Parish, LA. 448,306 451,240 0.7% 22051
124 Polk County, FL 405,382 448,646 10.7% 12105
125 Will County, IL 357,313 444,469 24.4% 17197
126 Douglas County, NE 416,444 441,006 5.9% 31055
127 Hampden County, MA 456,310 440,974 -3.4% 25013
128 Sedgwick County, KS 403,662 438,679 8.7% 20173
129 Genesee County, MI 430,459 435,393 1.1% 26049
130 Virginia Beach city, VA. 393,089 432,545 10.0% 51810
131 Sonoma County, CA. 388,222 428,609 10.4% 6097
132 Stanislaus County, CA 370,522 421,818 13.8% 6099
133 Volusia County, FL 370,737 419,797 13.2% 12127
134 Burlington County, NJ 395,066 417,930 5.8% 34005
135 Johnson County, KS 355,021 417,336 17.6% 20091
136 Chester County, PA 376,396 416,541 10.7% 42029
137 Spokane County, WA 361,333 404,650 12.0% 53063
138 Richmond County, NY 378,977 402,372 6.2% 36085
139 Collin County, TX. 264,036 401,352 52.0% 48085
140 Mobile County, AL. 378,643 398,276 5.2% 1097
141 Dane County, WI 367,085 397,511 8.3% 55025
142 East Baton Rouge Parish, LA 380,105 394,249 3.7% 22033
143 Washington County, OR 311,554 391,335 25.6% 41067
144 Santa Barbara County, CA 369,608 390,199 5.6% 6083
145 Lee County, FL. 335,113 387,091 15.5% 12071
146 Guilford County, NC 347,420 381,916 9.9% 37081
147 Kane County, IL 317,471 380,801 19.9% 17089
148 Westmoreland County, PA. 370,321 374,673 1.2% 42129
149 Stark County, OH 367,585 373,719 1.7% 39151
150 Solano County, CA. 339,471 371,020 9.3% 6095
151 York County, PA 339,574 370,518 9.1% 42133
152 Knox County, TN 335,749 365,626 8.9% 47093
153 Denton County, TX. 273,525 365,058 33.5% 48121
154 Monterey County, CA 355,660 361,907 1.8% 6053
155 Hillsborough County, NH. 335,838 357,840 6.6% 33011
156 Polk County, IA 327,140 354,232 8.3% 19153
157 Berks County, PA 336,523 354,057 5.2% 42011
158 Tulare County, CA. 311,921 353,175 13.2% 6107
159 Pulaski County, AR 349,569 350,426 0.2% 5119
160 Waukesha County, WI 304,715 348,808 14.5% 55133
161 Greenville County, SC 320,167 348,523 8.9% 45045
162 Seminole County, FL 287,521 344,729 19.9% 12117
163 St. Louis city, MO 396,685 341,869 -13.8% 29510
164 Dakota County, MN. 275,189 334,585 21.6% 27037
165 Clackamas County, OR. 278,850 331,106 18.7% 41005
166 Mercer County, NJ. 325,824 329,786 1.2% 34021
167 Utah County, UT 263,590 328,142 24.5% 49049
168 Orange County, NY. 307,647 327,160 6.3% 36071
169 Butler County, OH. 291,479 326,749 12.1% 39017
170 Fort Bend County, TX. 225,421 321,149 42.5% 48157
171 Cameron County, TX 260,120 320,801 23.3% 48061
172 Pasco County, FL 281,131 320,253 13.9% 12101
173 Luzerne County, PA 328,149 317,560 -3.2% 42079
174 Nueces County, TX. 291,145 317,474 9.0% 48355
175 Clark County, WA 238,053 316,526 33.0% 53011
176 Adams County, CO 265,038 316,066 19.3% 8001
177 Allen County, IN 300,836 312,091 3.7% 18003
178 Lane County, OR 282,912 311,356 10.1% 41039
179 Washoe County, NV. 254,667 305,792 20.1% 32031
180 Richland County, SC 286,321 303,577 6.0% 45079
181 Sarasota County, FL 277,776 301,644 8.6% 12115
182 Washtenaw County, MI. 282,937 299,503 5.9% 26161
183 Lehigh County, PA. 291,130 297,703 2.3% 42077
184 Hamilton County, TN 285,536 294,676 3.2% 47065
185 Albany County, NY. 292,793 294,312 0.5% 36001
186 Anoka County, MN 243,641 286,673 17.7% 27003
187 Forsyth County, NC 265,878 285,807 7.5% 37067
188 Charleston County, SC 295,041 284,815 -3.5% 45019
189 Ingham County, MI. 281,912 284,089 0.8% 26065
190 Cumberland County, NC 274,713 284,047 3.4% 37051
191 Escambia County, FL 262,798 282,604 7.5% 12033
192 Lorain County, OH. 271,126 282,465 4.2% 39093
193 Rockland County, NY 265,475 279,860 5.4% 36087
194 Erie County, PA 275,572 279,401 1.4% 42049
195 Somerset County, NJ 240,245 276,826 15.2% 34035
196 Madison County, AL 238,912 272,293 14.0% 1089
197 Ada County, ID. 205,775 267,168 29.8% 16001
198 Rockingham County, NH 245,845 267,105 8.6% 33015
199 Winnebago County, IL. 252,913 266,653 5.4% 17201
200 Marion County, OR. 228,483 265,123 16.0% 41047
201 Dutchess County, NY 259,462 264,687 2.0% 36027
202 St. Charles County, MO 212,751 264,275 24.2% 29183
203 St. Clair County, IL. 262,852 263,866 0.4% 17163
204 Boulder County, CO 225,339 261,617 16.1% 8013
205 Madison County, IL 249,238 258,641 3.8% 17119
206 Montgomery County, TX 182,201 258,127 41.7% 48339
207 St. Joseph County, IN 247,052 258,056 4.5% 18141
208 Mahoning County, OH 264,806 257,489 -2.8% 39099
209 Northampton County, PA 247,105 257,289 4.1% 42095
210 Prince William County, VA 215,677 254,464 18.0% 51153
211 New London County, CT 254,957 252,958 -0.8% 9011
212 Cumberland County, ME 243,135 251,438 3.4% 23005
213 Anchorage Borough, AK 226,338 251,047 10.9% 2020
214 Hinds County, MS 254,441 247,492 -2.7% 28049
215 Gloucester County, NJ 230,082 246,070 6.9% 34015
216 Dauphin County, PA 237,813 245,793 3.4% 42043
217 Spartanburg County, SC 226,793 244,980 8.0% 45083
218 Henrico County, VA 217,849 243,841 11.9% 51087
219 Caddo Parish, LA 248,253 243,391 -2.0% 22017
220 Chesterfield County, VA. 209,564 242,987 15.9% 51041
221 Galveston County, TX. 217,396 242,979 11.8% 48167
222 Jefferson County, TX. 239,389 241,940 1.1% 48245
223 Santa Cruz County, CA 229,734 240,488 4.7% 6087
224 Fayette County, KY 225,366 239,874 6.4% 21067
225 Marion County, FL. 194,835 237,308 21.8% 12083
226 Manatee County, FL 211,707 237,139 12.0% 12081
227 McHenry County, IL 183,241 236,952 29.3% 17111
228 Atlantic County, NJ 224,327 236,569 5.5% 34001
229 Marin County, CA 230,096 235,692 2.4% 6041
230 Kitsap County, WA. 189,731 234,608 23.7% 53035
231 Lancaster County, NE. 213,641 233,319 9.2% 31109
232 San Luis Obispo County, CA. 217,162 233,291 7.4% 6079
233 Oneida County, NY. 250,836 233,187 -7.0% 36065
234 Lubbock County, TX 222,636 230,672 3.6% 48303
235 Norfolk city, VA 261,250 229,386 -12.2% 51710
236 Kalamazoo County, MI. 223,411 229,192 2.6% 26077
237 Howard County, MD. 187,328 228,797 22.1% 24027
238 Trumbull County, OH 227,813 226,082 -0.8% 39155
239 Davis County, UT 187,941 226,062 20.3% 49011
240 Larimer County, CO 186,136 226,021 21.4% 8069
241 Chatham County, GA 216,774 225,934 4.2% 13051
242 Greene County, MO. 207,949 225,577 8.5% 29077
243 Brazoria County, TX 191,707 225,406 17.6% 48039
244 Lake County, OH 215,499 223,715 3.8% 39085
245 Bell County, TX 191,073 222,302 16.3% 48027
246 Placer County, CA. 172,796 221,476 28.2% 6061
247 Ottawa County, MI. 187,768 220,403 17.4% 26139
248 Niagara County, NY 220,756 220,249 -0.2% 36063
249 Yakima County, WA. 188,823 218,318 15.6% 53077
250 Montgomery County, AL 209,085 217,597 4.1% 1101
251 Leon County, FL 192,493 215,170 11.8% 12073
252 Brown County, WI 194,594 214,244 10.1% 55009
253 Harford County, MD 182,132 212,560 16.7% 24025
254 Saginaw County, MI 211,946 211,278 -0.3% 26145
255 Williamson County, TX 139,551 210,477 50.8% 48491
256 Lackawanna County, PA 219,097 210,464 -3.9% 42069
257 Cumberland County, PA 195,257 207,852 6.5% 42041
258 Washington County, PA 204,584 205,807 0.6% 42125
259 Barnstable County, MA 186,605 205,128 9.9% 25001
260 Clayton County, GA 181,436 204,197 12.5% 13063
261 Kanawha County, WV 207,619 203,646 -1.9% 54039
262 McLennan County, TX 189,123 202,983 7.3% 48309
263 Lexington County, SC. 167,611 200,371 19.5% 45063
264 Thurston County, WA 161,238 200,362 24.3% 53067
265 Durham County, NC. 181,855 199,653 9.8% 37063
266 Broome County, NY. 212,160 198,734 -6.3% 36007
267 Alachua County, FL 181,596 198,326 9.2% 12001
268 Cleveland County, OK. 174,253 197,164 13.1% 40027
269 Saratoga County, NY 181,276 196,584 8.4% 36091
270 Lake County, FL 152,104 196,214 29.0% 12069
271 Merced County, CA. 178,403 196,123 9.9% 6047
272 Collier County, FL 152,099 195,731 28.7% 12021
273 Chesapeake city, VA 151,982 195,616 28.7% 51550
274 St. Louis County, MN. 198,213 194,989 -1.6% 27137
275 Butte County, CA 182,120 194,160 6.6% 6007
276 Jefferson County, MO. 171,380 193,210 12.7% 29099
277 Richmond County, GA 189,719 193,098 1.8% 13245
278 Buncombe County, NC 174,819 192,784 10.3% 37021
279 Richmond city, VA. 202,798 192,395 -5.1% 51760
280 Sangamon County, IL 178,386 191,597 7.4% 17167
281 Washington County, MN 145,858 191,548 31.3% 27163
282 Beaver County, PA. 186,093 185,682 -0.2% 42007
283 Racine County, WI. 175,034 185,393 5.9% 55101
284 St. Tammany Parish, LA 144,500 184,590 27.7% 22103
285 Lafayette Parish, LA. 164,762 184,102 11.7% 22055
286 Gaston County, NC. 175,093 183,368 4.7% 37071
287 Webb County, TX 133,239 183,219 37.5% 48479
288 Frederick County, MD. 150,208 183,215 22.0% 24021
289 Muscogee County, GA 179,280 182,769 1.9% 13215
290 Peoria County, IL. 182,827 182,657 -0.1% 17143
291 Linn County, IA 168,767 181,704 7.7% 19113
292 Weber County, UT 158,330 181,596 14.7% 49057
293 Litchfield County, CT 174,092 181,082 4.0% 9005
294 St. Lucie County, FL. 150,171 179,559 19.6% 12111
295 Calcasieu Parish, LA. 168,134 178,874 6.4% 22019
296 Newport News city, VA 171,439 175,839 2.6% 51700
297 Harrison County, MS 165,365 175,611 6.2% 28047
298 Clay County, MO 153,411 174,035 13.4% 29047
299 York County, ME 164,587 173,512 5.4% 23031
300 Clermont County, OH 150,167 173,163 15.3% 39025
301 Arlington County, VA. 170,897 172,580 1.0% 51013
302 Jackson County, OR 146,387 170,960 16.8% 41029
303 Elkhart County, IN 156,198 170,725 9.3% 18039
304 Butler County, PA. 152,013 169,197 11.3% 42019
305 Horry County, SC 144,053 169,178 17.4% 45051
306 Champaign County, IL. 173,025 168,473 -2.6% 17019
307 Dona Ana County, NM 135,510 168,470 24.3% 35013
308 Okaloosa County, FL 143,777 167,580 16.6% 12091
309 Ulster County, NY. 165,304 166,933 1.0% 36111
310 Vanderburgh County, IN 165,058 166,837 1.1% 18163
311 Smith County, TX 151,309 166,723 10.2% 48423
312 Muskegon County, MI 158,983 165,882 4.3% 26121
313 Shawnee County, KS 160,976 164,932 2.5% 20177
314 Shasta County, CA. 147,036 163,178 11.0% 6089
315 Kent County, RI 161,135 161,742 0.4% 44003
316 Tuscaloosa County, AL 150,522 160,760 6.8% 1125
317 Berrien County, MI 161,378 160,713 -0.4% 26021
318 Rutherford County, TN 118,570 159,543 34.6% 47149
319 Anderson County, SC 145,177 158,251 9.0% 45007
320 St. Clair County, MI. 145,607 157,704 8.3% 26147
321 Scott County, IA 150,973 157,433 4.3% 19163
322 Cambria County, PA 163,062 157,419 -3.5% 42021
323 Bibb County, GA 150,137 155,975 3.9% 13021
324 El Dorado County, CA. 125,995 155,617 23.5% 6017
325 Weld County, CO 131,821 155,582 18.0% 8123
326 Jackson County, MI 149,756 155,346 3.7% 26075
327 Hamilton County, IN 108,936 154,785 42.1% 18057
328 Rensselaer County, NY 154,429 154,364 -0.0% 36083
329