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Harrison County
Sign in to saveAlso known as Harrison County, Mississippi, Harrison County, MS
county in Mississippi, United States
Key facts
- Country
- United States
- State
- Mississippi
- Named after
- William Henry Harrison
- Seat
- Biloxi and Gulfport
- Largest city
- Gulfport
- Total
- 976 sq mi (2,530 km )
- Land
- 574 sq mi (1,490 km )
- Water
- 402 sq mi (1,040 km ) 41%
- Estimate 2025
- 217,136
- Density
- 363/sq mi (140/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- 4th
- Website
- harrisoncountyms .gov
via Wikipedia infobox
~10 min read
Encyclopedic overview
Harrison County is a county located in the U.S. state of Mississippi. As of the 2020 census, Harrison County is the second-most populous county in Mississippi with a population of 208,621; although the most recent population estimate from 2025 suggests Harrison County has overtaken Hinds County to become the state's most populous county, with a population of 217,136. Its county seats are Biloxi and Gulfport. The county is named after U.S. President William Henry Harrison. Harrison County is part of the Gulfport-Biloxi metropolitan area. The county was severely damaged from both Hurricane Camille on August 17, 1969, and Hurricane Katrina on August 29, 2005, causing catastrophic effects.
History
Excerpted from Wikipedia’s “Harrison County” article, available under the CC BY-SA 4.0 licence.