Ten Largest Counties by Population

Based on July 1, 1998 population estimates.

For the most up-to-date listing, please follow this link for the Largest Counties by Population

1) Los Angeles, California - 9,213,533
2) Cook, Illinois - 5,189,689
3) Harris, Texas - 3,206,063
4) Maricopa, Arizona - 2,784,075
5) San Diego, California - 2,780,592
6) Orange, California - 2,721,701
7) Kings (Brooklyn), New York - 2,267,942
8) Dade, Florida - 2,152,437
9) Wayne, Michigan - 2,118,129
10) Dallas, Texas - 2,050,865

Visit the Census Bureau's County Population Estimates site for more information.

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