US county rankings
Twelve ranked lists across all 3,144 US counties and county-equivalents. Several of these questions have more than one defensible answer, and each page says which measure it used and why the other answer exists.
Which US county has the most people?Los Angeles CountyCalifornia9,694,934Which US county has the fewest people?Loving CountyTexas52Which US county is the largest by area?Yukon-Koyukuk Census AreaAlaska145,767 sq miWhich US county is the smallest by area?Falls Church cityVirginia2.0 sq miWhich US county is the most densely populated?New York CountyNew York73,478 per sq miWhich US county is the least densely populated?Yukon-Koyukuk Census AreaAlaska0.03 per sq miWhich US counties are growing fastest?Kaufman CountyTexas42.2%Which US counties are losing population fastest?Reeves CountyTexas-17.8%Which US county is the richest?Loudoun CountyVirginia$181,765Which US county is the poorest?Owsley CountyKentucky$22,188Where are US homes most expensive by county?Teton CountyWyoming$1,633,900Which US county has the oldest population?Loving CountyTexas86.2
Complete tables
The rankings above are curated top hundreds. These are the full datasets: every county, every row, sortable, with a CSV download.
- US counties by populationall 3,144 rows
- US counties by land areaall 3,144 rows
- US counties by population densityall 3,144 rows
- US counties by median household incomeall 3,144 rows
- US counties by median ageall 3,144 rows
- US counties by housing unitsall 3,144 rows
Rebuilt from source data 30 August 2026. How these figures are produced.