USA's counties by population based on United States Census

The national population change dynamic is one of the most critical factors in real estate investment at the town or county level.
Population change is a huge driver of demand.
Below, we have organized the list of counties in the following order: the most popular* first.

* Google search

U.S. counties by population

California counties by population 
Florida counties by population 
Georgia counties by population
Pennsylvania counties by population 
Texas counties by population
Ohio counties by population
Oregon counties by population


source: United States Census

The largest county in the United States by population

San Bernardino County
California 20,105.32 sq mi

Population change

2000 1,709,434 20.5%
2010 2,035,210 19.1%
Est. 2019 2,180,085 [4] 7.1%

U.S. Census Regions and Divisions: