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RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Most uninsured people, US counties · 2020

US counties with the most residents lacking health insurance, as of the 2020 American Community Survey. Ranked by number of people, not the uninsured rate. Harris County, Texas leads at 951,568. 3,135 counties qualify in total. Texas carries 8 of the top 25 entries.

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SAME RANKING BYCitiesStatesMetros
RELATEDLargest foreign-born populationMost residents with a disabilityLargest veteran populationLargest senior populationMost unmarried peopleMost unmarried men
YEAR20202024
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RANKPLACESTATEPOPUNINSURED RESIDENTSVS –
USUnited States8.5% of US population331,449,28128,058,903
01Harris County, TXTX5,045,026951,568
02Los Angeles County, CACA9,694,934914,046
03Dallas County, TXTX2,661,397542,636
04Maricopa County, AZAZ4,689,558478,064
05Cook County, ILIL5,194,625447,982
06Miami-Dade County, FLFL2,802,029433,554
07Tarrant County, TXTX2,248,466337,553
08Bexar County, TXTX2,160,088309,185
09Broward County, FLFL2,013,317274,533
10Hidalgo County, TXTX921,549260,885
11Clark County, NVNV2,407,226258,326
12San Diego County, CACA3,282,248244,072
13Orange County, CACA3,149,507225,042
14Riverside County, CACA2,544,916204,878
15Queens County, NYNY2,358,182200,657
16Palm Beach County, FLFL1,575,726197,976
17Orange County, FLFL1,528,002179,349
18Hillsborough County, FLFL1,574,115176,212
19San Bernardino County, CACA2,224,091175,185
20Kings County, NYNY2,653,963170,913
21El Paso County, TXTX877,858166,909
22Travis County, TXTX1,389,670152,633
23Gwinnett County, GAGA1,018,099145,068
24Mecklenburg County, NCNC1,233,383124,453
25Cameron County, TXTX433,946120,426
26Philadelphia County, PAPA1,574,281119,436
27King County, WAWA2,344,939117,336
28Salt Lake County, UTUT1,220,916114,332
29Bronx County, NYNY1,406,332113,006
30Oklahoma County, OKOK822,125110,309
31Duval County, FLFL1,062,963109,267
32Shelby County, TNTN910,226106,155
33Collin County, TXTX1,297,179105,647
34Fulton County, GAGA1,098,791104,828
35Wayne County, MIMI1,769,038103,858
36Pinellas County, FLFL948,563102,801
37Lee County, FLFL875,607100,493
38Franklin County, OHOH1,361,536100,364
39DeKalb County, GAGA774,39499,552
40Fort Bend County, TXTX975,19196,371
41Marion County, ININ992,19693,045
42Denton County, TXTX1,069,34692,811
43Prince George's County, MDMD970,37492,790
44Cobb County, GAGA793,34591,841
45Fairfax County, VAVA1,167,87391,785
46Wake County, NCNC1,257,23591,582
47Tulsa County, OKOK698,78291,106
48Pima County, AZAZ1,074,68590,650
49Polk County, FLFL874,79090,387
50Essex County, NJNJ896,37988,499
51Montgomery County, TXTX781,19486,170
52Sacramento County, CACA1,618,46083,134
53Hudson County, NJNJ735,03382,920
54Santa Clara County, CACA1,914,39181,041
55Davidson County, TNTN745,90479,478
56Jackson County, MOMO732,99478,557
57Webb County, TXTX281,22478,374
58Fresno County, CACA1,035,45676,302
59New York County, NYNY1,664,86275,705
60Ventura County, CACA830,85170,449
61Alameda County, CACA1,636,63070,389
62Montgomery County, MDMD1,074,58270,331
63Denver County, COCO740,61368,142
64Milwaukee County, WIWI924,21667,755
65Kern County, CACA927,06866,775
66Cuyahoga County, OHOH1,232,92566,381
67Bergen County, NJNJ977,02664,617
68Nueces County, TXTX352,99263,133
69Passaic County, NJNJ531,62462,861
70Lancaster County, PAPA563,15962,745
71Union County, NJNJ601,86361,811
72Pasco County, FLFL674,51661,546
73Suffolk County, NYNY1,546,09061,432
74Volusia County, FLFL606,57361,178
75St. Louis County, MOMO990,91159,744
76Brevard County, FLFL663,98259,668
77Hennepin County, MNMN1,284,78459,174
78Jefferson County, ALAL665,74258,699
79Contra Costa County, CACA1,170,07057,133
80Middlesex County, NJNJ883,33555,796
81Nassau County, NYNY1,398,93955,051
82Williamson County, TXTX752,82754,481
83Greenville County, SCSC583,12553,419
84Bernalillo County, NMNM667,60153,222
85Sedgwick County, KSKS538,43352,997
86Douglas County, NENE606,46052,780
87Oakland County, MIMI1,288,33752,531
88Multnomah County, OROR795,39152,462
89Westchester County, NYNY1,015,74352,370
90Clayton County, GAGA297,47151,935
91Adams County, COCO554,66851,909
92Pierce County, WAWA946,28851,326
93Collier County, FLFL417,13151,245
94Arapahoe County, COCO673,82050,808
95DuPage County, ILIL934,29849,392
96Prince William County, VAVA502,96649,254
97Snohomish County, WAWA870,65648,877
98Guilford County, NCNC562,23448,567
99El Paso County, COCO757,04048,427
100Osceola County, FLFL481,71847,826
101Jefferson Parish, LALA431,39847,687
102Brazoria County, TXTX419,08047,503
103Jefferson County, TXTX254,32147,477
104Utah County, UTUT759,85947,372
105Horry County, SCSC427,55147,202
106San Joaquin County, CACA823,81546,860
107Manatee County, FLFL468,20046,545
108Allegheny County, PAPA1,225,03546,333
109Sarasota County, FLFL479,95846,062
110Mobile County, ALAL411,65845,822
111Bell County, TXTX402,24845,143
112Macomb County, MIMI886,22145,070
113Washoe County, NVNV509,38644,990
114Hamilton County, OHOH838,41844,460
115Lake County, ILIL719,33943,987
116St. Lucie County, FLFL402,44943,562
117Seminole County, FLFL491,88443,496
118Galveston County, TXTX372,20743,310
119Santa Barbara County, CACA442,06543,302
120Kane County, ILIL525,75743,277
121Baltimore County, MDMD847,65043,146
122Middlesex County, MAMA1,669,97941,461
123Charleston County, SCSC436,20041,101
124Marion County, FLFL442,66040,955
125Lubbock County, TXTX328,90640,535
126Forsyth County, NCNC401,71839,672
127Chatham County, GAGA311,85539,390
128Monterey County, CACA433,72939,081
129Smith County, TXTX252,54937,616
130Jefferson County, KYKY795,22237,604
131Lake County, FLFL456,06837,442
132East Baton Rouge Parish, LALA456,18037,234
133Pinal County, AZAZ539,38037,001
134Durham County, NCNC347,24036,869
135Kent County, MIMI675,23236,619
136Richland County, SCSC434,95636,194
137Ada County, IDID546,14135,883
138Tulare County, CACA485,14635,869
139McLennan County, TXTX272,02035,716
140Baltimore, MDMD569,99735,525
141Knox County, TNTN511,45335,411
142Orleans Parish, LALA362,15435,341
143Will County, ILIL712,25334,923
144Montgomery County, OHOH539,59834,395
145Johnson County, KSKS636,90634,316
146Hall County, GAGA226,56833,732
147Lake County, ININ504,61233,081
148Hamilton County, TNTN390,83333,059
149Providence County, RIRI678,17932,924
150Greene County, MOMO309,28632,857
151Washington County, OROR611,70832,799
152Escambia County, FLFL333,83432,753
153Monmouth County, NJNJ651,03532,666
154Ector County, TXTX173,80132,449
155Spartanburg County, SCSC380,85732,156
156Camden County, NJNJ535,79931,998
157Virginia Beach, VAVA453,73731,512
158Cumberland County, NCNC338,47331,417
159Honolulu County, HIHI988,70331,201
160San Francisco County, CACA826,07931,049
161Summit County, OHOH538,37630,810
162Hays County, TXTX304,39030,709
163St. Louis, MOMO278,14430,642
164Stanislaus County, CACA557,71930,491
165Pulaski County, ARAR404,61130,449
166Elkhart County, ININ208,77430,412
167Yakima County, WAWA259,18530,318
168Jefferson County, COCO580,45130,317
169Allen County, ININ402,32929,921
170Suffolk County, MAMA791,89129,883
171Sonoma County, CACA486,44429,765
172Anchorage, AKAK287,15529,680
173Ocean County, NJNJ673,74629,526
174Hinds County, MSMS211,88829,454
175Clark County, WAWA532,11929,330
176San Mateo County, CACA743,56829,312
177Canyon County, IDID275,12329,255
178Madison County, ALAL433,51629,244
179Cleveland County, OKOK303,97328,797
180Rutherford County, TNTN386,35228,787
181Montgomery County, PAPA877,64328,680
182Harrison County, MSMS217,13628,620
183Buncombe County, NCNC277,41728,505
184Midland County, TXTX187,85528,475
185Lexington County, SCSC317,58828,359
186Johnson County, TXTX218,04828,287
187New Castle County, DEDE588,02628,252
188Wyandotte County, KSKS170,59728,152
189Marion County, OROR355,77728,063
190Erie County, NYNY946,74127,979
191Ellis County, TXTX240,86727,947
192Cherokee County, GAGA299,27327,909
193Weld County, COCO378,42627,740
194Delaware County, PAPA580,93727,404
195Washington County, ARAR271,21327,310
196Ramsey County, MNMN541,62327,300
197Brazos County, TXTX249,08826,783
198Lane County, OROR381,58426,138
199Richmond, VAVA237,25726,066
200Spokane County, WAWA558,34426,022
201Chesterfield County, VAVA397,14825,992
202Chester County, PAPA557,11625,934
203Yuma County, AZAZ224,44925,719
204Berks County, PAPA440,07225,627
205Richmond County, GAGA206,55925,620
206Mercer County, NJNJ399,28925,605
207Hillsborough County, NHNH433,41525,350
208District of Columbia, DCDC693,64525,288
209Bucks County, PAPA647,82825,208
210Henry County, GAGA264,92224,925
211Lucas County, OHOH423,34724,901
212Potter County, TXTX114,45324,649
213Norfolk, VAVA231,01324,336
214New Hanover County, NCNC245,95924,037
215Johnston County, NCNC256,44824,018
216Henrico County, VAVA342,77523,782
217Monroe County, NYNY750,50623,763
218Bay County, FLFL204,47923,753
219Benton County, ARAR332,55423,693
220Hernando County, FLFL221,70123,628
221Anne Arundel County, MDMD603,38023,561
222Essex County, MAMA826,65323,282
223York County, SCSC306,88723,092
224Okaloosa County, FLFL221,81022,848
225Clackamas County, OROR426,28022,770
226Doña Ana County, NMNM229,09122,757
227Gaston County, NCNC246,55822,741
228Lancaster County, NENE334,04922,671
229Berkeley County, SCSC274,66622,671
230Genesee County, MIMI401,09322,650
231Leon County, FLFL299,04822,594
232Yavapai County, AZAZ252,55222,431
233Lehigh County, PAPA384,38322,394
234Loudoun County, VAVA449,74922,317
235Montgomery County, ALAL225,89122,277
236Muscogee County, GAGA202,17122,220
237Polk County, IAIA516,54622,220
238York County, PAPA473,19722,075
239Morris County, NJNJ524,25122,006
240Alachua County, FLFL290,02821,916
241Weber County, UTUT278,17421,793
242Solano County, CACA455,37621,737
243Merced County, CACA297,26021,609
244Gregg County, TXTX126,09521,555
245Starr County, TXTX66,31921,240
246Fayette County, KYKY329,75121,227
247Butler County, OHOH400,12821,039
248Lafayette Parish, LALA257,94921,038
249Grayson County, TXTX153,61321,019
250Larimer County, COCO377,29220,839
251Caddo Parish, LALA224,22620,688
252Stark County, OHOH373,77120,574
253Baldwin County, ALAL267,76120,501
254Union County, NCNC267,67420,499
255St. Joseph County, ININ272,86120,483
256Clay County, FLFL239,59320,447
257Davis County, UTUT381,22720,443
258Atlantic County, NJNJ278,65720,292
259Washington County, UTUT213,67020,279
260Anderson County, SCSC219,93020,251
261St. Johns County, FLFL346,32820,055
262Forsyth County, GAGA282,80519,947
263Dane County, WIWI590,37519,545
264Mohave County, AZAZ228,10219,536
265Parker County, TXTX184,76719,377
266Davidson County, NCNC180,18219,347
267Richmond County, NYNY501,29019,276
268St. Tammany Parish, LALA279,10819,219
269Paulding County, GAGA190,99619,185
270Clay County, MOMO265,03219,159
271Worcester County, MAMA888,50219,087
272Charlotte County, FLFL217,21219,085
273Burlington County, NJNJ481,43918,780
274Guadalupe County, TXTX201,11118,767
275Taylor County, TXTX150,07718,722
276Douglas County, GAGA154,29318,659
277Apache County, AZAZ64,44518,578
278Randolph County, NCNC149,51618,558
279Robeson County, NCNC119,94118,507
280Liberty County, TXTX121,36418,475
281Santa Rosa County, FLFL211,11518,462
282Whitfield County, GAGA106,21218,278
283Bibb County, GAGA157,55618,133
284Newport News, VAVA183,23018,131
285Jefferson County, MOMO233,13218,071
286Pitt County, NCNC182,93618,060
287Orange County, NYNY417,66918,042
288Holmes County, OHOH44,97018,026
289Jackson County, MSMS147,66617,925
290Alamance County, NCNC186,17717,902
291Catawba County, NCNC170,17217,766
292Somerset County, NJNJ356,48617,742
293Wichita County, TXTX129,55517,554
294Indian River County, FLFL172,79917,287
295Kaufman County, TXTX209,23517,262
296Beaufort County, SCSC204,43317,137
297St. Charles County, MOMO426,49917,043
298Winnebago County, ILIL283,67417,042
299Maverick County, TXTX58,82316,921
300Iredell County, NCNC211,79816,844
301Lowndes County, GAGA122,86716,790
302LaGrange County, ININ41,30516,759
303Kootenai County, IDID191,86416,674
304Cumberland County, MEME317,22216,610
305Luzerne County, PAPA332,12616,606
306Cabarrus County, NCNC249,72516,552
307Lorain County, OHOH323,21916,509
308San Luis Obispo County, CACA282,36716,434
309Dorchester County, SCSC178,39716,412
310Aiken County, SCSC181,51516,232
311Houston County, GAGA178,21416,222
312Dakota County, MNMN457,71016,088
313San Juan County, NMNM120,34016,061
314Comal County, TXTX209,16615,974
315Bristol County, MAMA593,64015,965
316Onondaga County, NYNY466,58415,921
317Santa Fe County, NMNM156,90715,902
318Angelina County, TXTX88,15415,820
319Calcasieu Parish, LALA208,46615,819
320Rowan County, NCNC155,09615,808
321Jasper County, MOMO127,42815,799
322Chesapeake, VAVA255,33215,751
323Victoria County, TXTX92,65615,732
324Bartow County, GAGA120,80015,672
325Clarke County, GAGA129,92115,666
326Coconino County, AZAZ144,36815,646
327DeSoto County, MSMS197,91815,519
328Wayne County, NCNC122,27815,514
329Citrus County, FLFL171,66615,491
330Canadian County, OKOK187,18915,487
331Hunt County, TXTX123,33615,251
332Martin County, FLFL166,27215,177
333St. Clair County, ILIL250,70815,169
334Montgomery County, TNTN249,93515,151
335Tom Green County, TXTX120,60215,148
336McHenry County, ILIL317,75115,135
337Rockland County, NYNY357,39715,129
338Henderson County, TXTX88,59515,053
339Dauphin County, PAPA293,35115,053
340Onslow County, NCNC217,17514,935
341Matanuska-Susitna, AKAK118,66614,864
342Comanche County, OKOK122,15814,858
343Alexandria, VAVA160,66214,852
344Bastrop County, TXTX118,90814,838
345Newton County, GAGA125,58314,794
346Jackson County, OROR221,79514,722
347Wayne County, OHOH116,75814,680
348Minnehaha County, SDSD212,69114,631
349Anoka County, MNMN381,60514,585
350Sussex County, DEDE277,14014,501
351Navajo County, AZAZ109,94614,500
352Rockingham County, NHNH324,07714,493
353Tuscaloosa County, ALAL241,36814,468
354Sumner County, TNTN215,53814,462
355Flagler County, FLFL140,36014,453
356Placer County, CACA442,08114,444
357Ingham County, MIMI289,70914,429
358Boulder County, COCO328,56014,420
359Kalamazoo County, MIMI263,79514,350
360Mesa County, COCO162,84514,312
361McKinley County, NMNM68,11914,255
362Coweta County, GAGA160,24014,250
363Floyd County, GAGA101,37814,246
364Benton County, WAWA221,72214,148
365Franklin County, PAPA160,65214,137
366Santa Cruz County, CACA258,85214,114
367Harnett County, NCNC150,13714,096
368Henderson County, NCNC122,37514,094
369Hampden County, MAMA464,33814,026
370Carroll County, GAGA131,03614,020
371Deschutes County, OROR213,07213,995
372Arlington County, VAVA243,93113,978
373Hamilton County, ININ387,03613,886
374Vanderburgh County, ININ181,99513,883
375Sullivan County, TNTN163,75913,723
376Sebastian County, ARAR130,64113,688
377Dougherty County, GAGA82,61613,589
378Brown County, WIWI275,80313,486
379Northampton County, PAPA324,41113,477
380Orange County, TXTX86,26613,438
381Florence County, SCSC138,50413,428
382Sevier County, TNTN101,34213,394
383Butte County, CACA209,21113,336
384Rankin County, MSMS162,18113,277
385Brunswick County, NCNC174,70213,222
386Cumberland County, NJNJ157,14813,164
387Whatcom County, WAWA236,39213,145
388Cumberland County, PAPA277,27013,144
389Shelby County, ALAL238,55213,130
390Thurston County, WAWA304,26113,022
391Waukesha County, WIWI417,21013,019
392Randall County, TXTX152,35112,962
393Franklin County, WAWA102,61212,908
394Madison County, ILIL263,11012,891
395Dutchess County, NYNY300,70812,884
396Kent County, DEDE194,78612,818
397Norfolk County, MAMA739,74912,794
398Shawnee County, KSKS178,60712,747
399Highlands County, FLFL111,12212,684
400Lee County, ALAL189,88112,682
401Columbia County, GAGA169,18912,653
402Ouachita Parish, LALA158,54212,552
403Penobscot County, MEME157,96712,516
404Monroe County, FLFL80,40612,471
405Tippecanoe County, ININ190,45612,417
406Barrow County, GAGA99,77312,414
407Rockdale County, GAGA98,41612,377
408Trumbull County, OHOH198,97212,310
409Gloucester County, NJNJ312,63812,269
410Plymouth County, MAMA546,82912,231
411Pennington County, SDSD116,79212,228
412Boone County, MOMO191,74612,202
413Williamson County, TNTN272,06112,127
414Douglas County, COCO399,39612,076
415Imperial County, CACA181,41112,001
416Blount County, TNTN143,82011,994
417Putnam County, FLFL77,73411,960
418Bowie County, TXTX92,69611,960
419Howard County, MDMD339,18311,930
420Morgan County, ALAL126,48311,927
421Kitsap County, WAWA283,37411,924
422Houston County, ALAL110,31811,915
423Erie County, PAPA265,83211,829
424Monroe County, PAPA167,17911,821
425Lebanon County, PAPA146,38011,795
426Washington County, TNTN141,19911,791
427York County, MEME222,43411,759
428Rapides Parish, LALA125,87711,713
429Etowah County, ALAL103,88611,688
430Sumter County, SCSC105,06711,599
431Marshall County, ALAL103,53711,564
432Bradley County, TNTN115,46511,556
433Washtenaw County, MIMI370,21411,531
434Wise County, TXTX83,77811,456
435Frederick County, MDMD302,88311,452
436Nacogdoches County, TXTX66,03511,435
437Glynn County, GAGA87,59911,431
438Sandoval County, NMNM159,56511,408
439Grant County, WAWA105,72711,327
440Stafford County, VAVA170,80311,297
441Calhoun County, ALAL115,83411,260
442Madera County, CACA167,92711,242
443Tangipahoa Parish, LALA141,34611,169
444Cleveland County, NCNC103,32511,163
445Walton County, GAGA112,69611,150
446Kenosha County, WIWI168,44811,136
447Livingston Parish, LALA155,03611,105
448Clermont County, OHOH216,97711,103
449Lake County, OHOH232,21711,103
450Peoria County, ILIL178,55311,001
451Pueblo County, COCO169,27711,001
452Westmoreland County, PAPA349,32410,965
453Shasta County, CACA181,64810,935
454Roanoke, VAVA99,11110,909
455San Patricio County, TXTX72,05310,860
456Muskogee County, OKOK66,70810,735
457Mahoning County, OHOH224,70610,731
458Pickens County, SCSC139,19810,712
459Cherokee County, OKOK49,19610,645
460Waller County, TXTX69,85810,569
461Humboldt County, CACA131,64710,480
462Burke County, NCNC88,65510,471
463Garfield County, COCO63,47410,465
464Terrebonne Parish, LALA104,16310,343
465Cherokee County, TXTX53,33710,292
466Buchanan County, MOMO83,54010,284
467Harrison County, TXTX71,95610,243
468Faulkner County, ARAR133,97910,242
469Kanawha County, WVWV172,38110,220
470Ottawa County, MIMI308,45910,213
471Spotsylvania County, VAVA155,38810,193
472Sarpy County, NENE208,30310,190
473Cass County, NDND201,79410,147
474Bonneville County, IDID135,77110,141
475Kings County, CACA154,32710,122
476Madison County, ININ135,08810,120
477Val Verde County, TXTX47,83510,094
478Forrest County, MSMS79,03410,076
479Payne County, OKOK83,88910,037
480Rogers County, OKOK102,19710,021
481Berrien County, MIMI152,4449,978
482Hendry County, FLFL48,2769,952
483Madison County, TNTN100,7909,948
484Colquitt County, GAGA47,4389,947
485Walton County, FLFL93,2889,940
486Craven County, NCNC105,0259,914
487Bulloch County, GAGA86,9499,869
488Garland County, ARAR99,6959,855
489Duplin County, NCNC51,5719,813
490Licking County, OHOH185,5649,808
491Nash County, NCNC99,3659,797
492Pottawatomie County, OKOK75,1029,781
493Wagoner County, OKOK93,2639,729
494Caldwell County, NCNC81,1059,725
495Orange County, NCNC152,4989,719
496Hampton, VAVA137,3159,713
497Sampson County, NCNC61,5049,691
498DeKalb County, ALAL74,0859,683
499Natrona County, WYWY80,5269,675
500Hawaii County, HIHI210,0439,667
SHOWING 1–500 OF 3,135
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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which county has the highest uninsured residents?

Harris County, Texas ranks #1 with 951,568 (2020 Decennial Census).

What are the top 5 counties by uninsured residents?

Harris County, Texas, Los Angeles County, California, Dallas County, Texas, Maricopa County, Arizona, Cook County, Illinois.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is uninsured residents measured?

Number of civilian noninstitutionalized residents without health insurance (ACS S2701). The raw-count companion to the uninsured rate. Source: US Census Bureau, 2020 Decennial Census.