County Maps US

Harrison County, Mississippi

The most populous of Mississippi's 82 counties.

CountyFIPS 28047

Within Mississippi
Harrison County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Gulfport, the county seat, located via the 2025 Census Gazetteer.

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Population
217,136
+8,315 (+4.0%) since 2020
Land area
573.7
square miles. A further 41.7% of the total area is water
Population density
379
people per square mile, computed rather than published
County seat
Gulfport
Seat of county government.
Established
1841
184 years ago
Largest city
Gulfport city
Population 76,506.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Harrison County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Harrison County, Mississippi from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 773 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Harrison County ranks

Position among the 82 counties of Mississippi, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn MississippiNationally
Population217,1361st of 82332nd of 3,144
Land area573.7 sq mi40th of 821,742nd of 3,144
Population density379 per sq mi2nd of 82362nd of 3,144
Median household income$59,47913th of 822,125th of 3,143

Full data for Harrison County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population217,136Vintage 2025 Population Estimates
Population in 2020208,821Vintage 2025 Population Estimates
2020 estimates base?208,624Vintage 2025 Population Estimates
Land area573.7 sq mi2025 Gazetteer Files
Water area411 sq mi2025 Gazetteer Files
Total area984.7 sq mi2025 Gazetteer Files
Population density?379 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$59,479American Community Survey 2020-2024 5-Year Estimates
Median home value$212,200American Community Survey 2020-2024 5-Year Estimates
Median age38.5American Community Survey 2020-2024 5-Year Estimates
Households83,358American Community Survey 2020-2024 5-Year Estimates
Housing units94,898American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+84
2,431 births, 2,347 deaths
Net migration
+2,440
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Harrison County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Jackson CountyMississippi36 mi147,666
Hancock CountyMississippi34 mi46,873
Stone CountyMississippi29 mi19,654
St. Bernard ParishLouisiana26 mi45,642
Pearl River CountyMississippia single point59,363

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 82 counties of Mississippi

Open the interactive Mississippi county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.