40 CFR Appendix I to Part 122: Appendix I to Part 122—Counties With Unincorporated Urbanized Areas Greater Than 100,000, But Less Than 250,000 According to the 1990 Decennial Census by the Bureau of the Census

State County Unincorporated urbanized population

Alabama Jefferson 78,608

Arizona Pima 162,202

California Alameda 115,082

Contra Costa 131,082

Kern 128,503

Orange 223,081

Riverside 166,509

San Bernardino 162,202

Colorado Arapahoe 103,248

Florida Broward 142,329

Escambia 167,463

Hillsborough 398,593

Lee 102,337

Manatee 123,828

Orange 378,611

Palm Beach 360,553

Pasco 148,907

Pinellas 255,772

Polk 121,528

Sarasota 172,600

Seminole 127,873

Georgia Clayton 133,237

Cobb 322,595

Fulton 127,776

Gwinnett 237,305

Richmond 126,476

Kentucky Jefferson 239,430

Louisiana East Baton Rouge 102,539

Parish 331,307

Jefferson Parish

Maryland Howard 157,972

North Carolina Cumberland 146,827

Nevada Clark 327,618

Oregon Multnomah 1 52,923

Washington 116,687

South Carolina Greenville 147,464

Richland 130,589

Virginia Arlington 170,936

Chesterfield 174,488

Henrico 201,367

Prince William 157,131

Washington Pierce 258,530

Snohomish 157,218

1 County was previously listed in this appendix; however, population dropped to below 100,000 in the 1990 Census.