This is a list of the 100 most populous of the 3,144 counties in the United States based on the national decennial US census conducted on April 1, 2020, ...

According to the most recent United States Census, Los Angeles County in California is the largest county in the nation, with a total population of 10,150,558 – ... California · Florida · Georgia · Pennsylvania

ACS Population - Other Family Households 2022 ; Cook County, IL, 17031, 218,064 ; Harris County, TX, 48201, 176,388 ; Maricopa County, AZ, 04013, 145,522 ; Kings ...

1, Los Angeles County, California, 9,829,544 ; 2, Cook County, Illinois, 5,173,146 ; 3, Harris County, Texas, 4,728,030 ; 4, Maricopa County, Arizona, 4,496,588.

25 июн. 2024 г. · This page features county population estimates totals and components of change for years 2020-2023.