Top 25 Counties in the U.S. ranked by Most 
  Households, 2000

County, State                          Number      Rank
-------------------------------------------------------
Los Angeles, CA                     3,133,774         1
Cook, IL                            1,974,181         2
Harris, TX                          1,205,516         3
Maricopa, AZ                        1,132,886         4
San Diego, CA                         994,677         5
Orange, CA                            935,287         6
Kings, NY                             880,727         7
Dallas, TX                            807,621         8
Queens, NY                            782,664         9
Dade, FL                              776,774        10
Wayne, MI                             768,440        11
New York, NY                          738,644        12
King, WA                              710,916        13
Broward, FL                           654,445        14
Philadelphia, PA                      590,071        15
Cuyahoga, OH                          571,457        16
Santa Clara, CA                       565,863        17
Middlesex, MA                         561,220        18
Allegheny, PA                         537,150        19
Tarrant, TX                           533,864        20
San Bernardino, CA                    528,594        21
Alameda, CA                           523,366        22
Clark, NV                             512,253        23
Riverside, CA                         506,218        24
Bexar, TX                             488,942        25

Source:  U.S. Census Bureau,
         County and City Data Book: 2000,
         Table B-3.