| Rank |
County |
Households |
| 1 |
Los Angeles County, California
|
3,218,518
|
| 2 |
Cook County, Illinois
|
1,934,771
|
| 3 |
Maricopa County, Arizona
|
1,394,016
|
| 4 |
Harris County, Texas
|
1,391,103
|
| 5 |
San Diego County, California
|
1,064,048
|
| 6 |
Orange County, California
|
987,164
|
| 7 |
Kings County, New York
|
907,785
|
| 8 |
Dallas County, Texas
|
840,663
|
| 9 |
MiamiDade County, Florida
|
825,337
|
| 10 |
King County, Washington
|
790,070
|
| 11 |
Queens County, New York
|
773,130
|
| 12 |
New York County, New York
|
733,393
|
| 13 |
Clark County, Nevada
|
701,836
|
| 14 |
Wayne County, Michigan
|
681,674
|
| 15 |
Riverside County, California
|
672,896
|
| 16 |
Broward County, Florida
|
665,037
|
| 17 |
Tarrant County, Texas
|
643,917
|
| 18 |
Santa Clara County, California
|
599,652
|
| 19 |
San Bernardino County, California
|
598,822
|
| 20 |
Bexar County, Texas
|
590,364
|
| 21 |
Philadelphia County, Pennsylvania
|
578,125
|
| 22 |
Middlesex County, Massachusetts
|
577,349
|
| 23 |
Cuyahoga County, Ohio
|
537,203
|
| 24 |
Alameda County, California
|
536,160
|
| 25 |
Palm Beach County, Florida
|
523,559
|
| 26 |
Allegheny County, Pennsylvania
|
523,175
|
| 27 |
Sacramento County, California
|
510,976
|
| 28 |
Suffolk County, New York
|
496,677
|
| 29 |
Oakland County, Michigan
|
481,449
|
| 30 |
Hennepin County, Minnesota
|
475,737
|
| 31 |
Bronx County, New York
|
471,923
|
| 32 |
Hillsborough County, Florida
|
463,425
|
| 33 |
Franklin County, Ohio
|
460,497
|
| 34 |
Nassau County, New York
|
443,315
|
| 35 |
Orange County, Florida
|
408,605
|
| 36 |
St Louis County, Missouri
|
404,158
|
| 37 |
Pinellas County, Florida
|
401,598
|
| 38 |
Travis County, Texas
|
399,679
|
| 39 |
Fairfax County, Virginia
|
385,570
|
| 40 |
Pima County, Arizona
|
382,366
|
| 41 |
Erie County, New York
|
379,478
|
| 42 |
Milwaukee County, Wisconsin
|
378,527
|
| 43 |
Contra Costa County, California
|
370,925
|
| 44 |
Fulton County, Georgia
|
362,603
|
| 45 |
Marion County, Indiana
|
357,586
|
| 46 |
Mecklenburg County, North Carolina
|
356,833
|
| 47 |
Montgomery County, Maryland
|
355,434
|
| 48 |
Hartford County, Connecticut
|
348,438
|
| 49 |
Westchester County, New York
|
345,908
|
| 50 |
Shelby County, Tennessee
|
340,394
|
| 51 |
Salt Lake County, Utah
|
339,035
|
| 52 |
San Francisco County, California
|
338,366
|
| 53 |
DuPage County, Illinois
|
335,651
|
| 54 |
Wake County, North Carolina
|
334,302
|
| 55 |
Bergen County, New Jersey
|
333,073
|
| 56 |
Fairfield County, Connecticut
|
332,139
|
| 57 |
Duval County, Florida
|
330,821
|
| 58 |
Macomb County, Michigan
|
330,452
|
| 59 |
New Haven County, Connecticut
|
330,396
|
| 60 |
Hamilton County, Ohio
|
325,766
|
| 61 |
Baltimore County, Maryland
|
315,127
|
| 62 |
Montgomery County, Pennsylvania
|
307,598
|
| 63 |
Honolulu County, Hawaii
|
307,248
|
| 64 |
Multnomah County, Oregon
|
302,224
|
| 65 |
Prince Georges County, Maryland
|
302,091
|
| 66 |
Jefferson County, Kentucky
|
301,312
|
| 67 |
Worcester County, Massachusetts
|
299,089
|
| 68 |
Pierce County, Washington
|
297,839
|
| 69 |
Monroe County, New York
|
293,104
|
| 70 |
Suffolk County, Massachusetts
|
286,437
|
| 71 |
Fresno County, California
|
285,338
|
| 72 |
Essex County, Massachusetts
|
284,940
|
| 73 |
Oklahoma County, Oklahoma
|
281,570
|
| 74 |
Middlesex County, New Jersey
|
278,513
|
| 75 |
Essex County, New Jersey
|
276,441
|
| 76 |
Collin County, Texas
|
276,234
|
| 77 |
Jackson County, Missouri
|
270,493
|
| 78 |
Snohomish County, Washington
|
266,331
|
| 79 |
DeKalb County, Georgia
|
265,137
|
| 80 |
Ventura County, California
|
264,982
|
| 81 |
Gwinnett County, Georgia
|
262,169
|
| 82 |
Bernalillo County, New Mexico
|
261,525
|
| 83 |
District of Columbia, District Of Columbia
|
260,136
|
| 84 |
Jefferson County, Alabama
|
259,394
|
| 85 |
Cobb County, Georgia
|
258,710
|
| 86 |
Denver County, Colorado
|
258,132
|
| 87 |
San Mateo County, California
|
256,423
|
| 88 |
Norfolk County, Massachusetts
|
255,944
|
| 89 |
Davidson County, Tennessee
|
254,111
|
| 90 |
Kern County, California
|
250,999
|
| 91 |
El Paso County, Texas
|
247,305
|
| 92 |
Lee County, Florida
|
243,017
|
| 93 |
Hudson County, New Jersey
|
240,526
|
| 94 |
Lake County, Illinois
|
239,947
|
| 95 |
Tulsa County, Oklahoma
|
239,674
|
| 96 |
Baltimore city, Maryland
|
238,959
|
| 97 |
Providence County, Rhode Island
|
238,633
|
| 98 |
Monmouth County, New Jersey
|
233,120
|
| 99 |
Denton County, Texas
|
231,355
|
| 100 |
El Paso County, Colorado
|
230,620
|