Demographics Atlas Open the interactive map →

Population (Census estimates) by County

Annual population estimate as of 1 July. More current than the ACS, which averages five years of responses.

See Population (Census estimates) on the interactive map →

Highest counties

CountyPopulation (Census estimates)
Los Angeles County, California9,663,345
Cook County, Illinois5,087,072
Harris County, Texas4,835,125
Maricopa County, Arizona4,585,871
San Diego County, California3,269,973
Orange County, California3,135,755
Miami-Dade County, Florida2,686,867
Dallas County, Texas2,606,358
Kings County, New York2,561,225
Riverside County, California2,492,442
Clark County, Nevada2,336,573
King County, Washington2,271,380

Lowest counties

CountyPopulation (Census estimates)
Loving County, Texas43
Kalawao County, Hawaii81
King County, Texas217
Kenedy County, Texas343
McPherson County, Nebraska383
Arthur County, Nebraska412
Blaine County, Nebraska436
Petroleum County, Montana554
Grant County, Nebraska565
McMullen County, Texas568
Borden County, Texas572
Loup County, Nebraska592

Counted among: Total population