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Appendix H to Part 122—Counties With Unincorporated Urbanized Areas With a Population of 250,000 or More According to the 1990 Decennial Census by the Bureau of the Census

Counties With Unincorporated Urbanized Areas With a Population of 250,000 or More According to the 1990 Decennial Census by the Bureau of the Census

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  5. Chapter I
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  9. Appendix Appendix H to Part 122
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Displayed edition2026-04-15
Last updated2026-04-15

Appendix H to Part 122—Counties With Unincorporated Urbanized Areas With a Population of 250,000 or More According to the 1990 Decennial Census by the Bureau of the Census

StateCountyUnincorporated urbanized population
CaliforniaLos Angeles886,780
Sacramento594,889
San Diego250,414
DelawareNew Castle296,996
FloridaDade1,014,504
GeorgiaDeKalb448,686
HawaiiHonolulu 1114,506
MarylandAnne Arundel344,654
Baltimore627,593
Montgomery599,028
Prince George's494,369
TexasHarris729,206
UtahSalt Lake270,989
VirginiaFairfax760,730
WashingtonKing520,468
1 County was previously listed in this appendix; however, population dropped to below 250,000 in the 1990 Census.

[64 FR 68848, Dec. 8, 1999]