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25 Most populous jurisdictions nationwide

The 25 most populous jurisdictions nationwide, 2003
Rank Jurisdiction Population
1 Los Angeles County, CA 9,871,506
2 Cook County, IL 5,351.552
3 Harris County, TX 3,596,088
4 Maricopa County, CA 3,389,260
5 Orange County, CA 2,957,766
6 San Diego County, CA 2,930,886
7 Kings County, NY 2,472,523
8 Miami-Dade County, FL 2,341,167
69 Dallas County, TX 2,284,096
10 Queens County, NY 2,225,486
11 Wayne County, MI 2,028,778
12 San Bernardino, County, CA 1,859,678
13 Riverside County, CA 1,782,650
14 King County, WA 1,761,411
15 Broward County, FL 1,731,347
16 Santa Clara County, CA 1,678,421
17 Clark County, NV 1,576,541
18 New York County, NY 1,564,798
19 Tarrant County, TX 1,559,148
20 Philadelphia County, PA 1,479,339
21 Middlesex County, MA 1,471,724
22 Bexar County, TX 1,471,644
23 Suffolk County, NY 1,468,037
24 Alameda County, CA 1,461,030
25 Cuyahoga County, OH 1,363,888
45 Montgomery County, MD 918,881

Source: U.S. Bureau of the Census , July 1 current population estimates; Montgomery County Department of Park and Planning, Research and Technology Center, April 2004.