Arkansas Counties, Demographics & Geography
Complete official guide to all 75 counties in Arkansas (AR). Explore 2024 US Census population estimates, county seats, FIPS codes, land areas, and interactive mapping tools powered by GeoMap Suite.
Arkansas County Breakdown
Showing 7 of 7 documented counties and seats.
County Name | FIPS | County Seat | Population (Census) | Land Area | Quick Tool |
|---|---|---|---|---|---|
| Pulaski County | 05119 | Little Rock | 399,125 | 760 sq mi | Lookup |
| Benton County | 05007 | Bentonville | 284,333 | 848 sq mi | Lookup |
| Washington County | 05143 | Fayetteville | 245,871 | 942 sq mi | Lookup |
| Sebastian County | 05131 | Fort Smith | 127,799 | 536 sq mi | Lookup |
| Faulkner County | 05045 | Conway | 123,498 | 647 sq mi | Lookup |
| Saline County | 05125 | Benton | 122,984 | 725 sq mi | Lookup |
| Craighead County | 05031 | Jonesboro | 111,231 | 707 sq mi | Lookup |
Geographic Structure of Arkansas Counties
County Administration & Governance
In Arkansas, county governments manage vital public infrastructure, tax assessments, law enforcement, judicial courts, election administration, and public records. The county seat (Little Rock and other municipal headquarters) houses the primary courthouse, commissioners, and sheriff’s department.
All Arkansas counties carry a unique 5-digit Federal Information Processing Standard (FIPS) code, where the first two digits (05) designate the state and the remaining three digits identify each specific jurisdiction.
Geographic & Demographic Highlights
- Most Populous County:Pulaski County (399,125 residents)
- Largest by Land Area:Washington County (942 sq mi)
- State Capital:Little Rock
- Census Bureau Region:South United States
Demographic calculations derive from the United States Census Bureau 2024 Population Estimates Program (PEP) and TIGER/Line geographic boundary files.