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US Counties by Population: Search & Excel Export
Search, sort and filter all 3,144 U.S. counties and county equivalents by population using the latest official U.S. Census Bureau estimates. Filter by state or population range, compare growth and download the results as a CSV file for Excel.
US Counties by Population
Search, filter and sort all U.S. counties using official Census Bureau estimates.
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Counties & Equivalents
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Census Estimate Year
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States + D.C.
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Free to Use
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How It Works
How to Find U.S. Counties by Population
Get a complete, sortable list of counties in four quick steps.
Choose a State
Pick a state to list its counties, or leave it on All states to search the whole country.
Set a Population Range
Enter a minimum and/or maximum population. Commas such as 50,000 are fine.
Search and Sort
Search by county name and click any column heading to sort by population or growth.
Download to Excel
Export every matching county, with FIPS codes and source details, as a CSV file.
About the Data
Every U.S. County, Official Figures Ranked
Population figures come from the U.S. Census Bureau Population Estimates Program (Vintage 2025), showing resident population on July 1 of each year. Rank is the county’s position among all counties nationwide.
1/ Official Source
Data is downloaded directly from census.gov and validated: county totals must add up exactly to each state total.
2/ County Equivalents
Includes Louisiana parishes, Alaska boroughs and census areas, independent cities, Washington, D.C., and Connecticut’s nine planning regions.
3/ Always Up to Date
The Census Bureau releases new county estimates once a year. The tool checks weekly and switches to new data once it passes validation.
Use Cases
Who Uses County Population Data?
County-level data is essential for local marketing, planning and research.
Local SEO & Geo-Targeting
Choose counties to target with location pages, local SEO campaigns and geo-targeted ads.
Sales Territory Planning
Balance sales territories and service areas by population.
Research and Public Health
Pull official county figures for reports, grant applications and analysis.
State Rankings
See the big picture with our free US States by Population rankings.
Custom Data Projects
Need more than population? We build custom data scraping solutions to enrich county lists.
The Census Bureau’s 2025 estimates cover 3,144 counties and county equivalents across the 50 states and Washington, D.C.
Some states use other units: Louisiana has parishes, Alaska has boroughs and census areas, and some states have independent cities. Washington, D.C. is also treated as a county equivalent.
Connecticut has had no county governments since 1960. The Census Bureau now uses its nine planning regions as county equivalents, so these replace the eight former counties.
Los Angeles County, California is the most populous county in the United States. Loving County, Texas has the smallest population.
From the U.S. Census Bureau Population Estimates Program (Vintage 2025) county population totals, downloaded directly from census.gov.
Yes. The download includes every county that matches your filters, not just the page you are viewing, plus FIPS codes and a source line.
Need Custom Data for Your Business?
Population is just the start. We build custom data scraping and data enrichment solutions that deliver exactly the information you need.
- Custom web scraping and data collection
- Clean, analysis-ready datasets
- Lead lists and market research data