County Maps US

Washington Parish, Louisiana

A parish in Louisiana, ranked 26 of 64 by population.

ParishFIPS 22117

Within Louisiana
Washington Parish, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Franklinton, the county seat, located via the 2025 Census Gazetteer.

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Population
44,937
-421 (-0.9%) since 2020
Land area
669.6
square miles. A further 0.9% of the total area is water
Population density
67.1
people per square mile, computed rather than published
County seat
Franklinton
Seat of county government.
Established
1819
206 years ago
Largest city
Bogalusa city
Population 10,321.

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 Washington Parish 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 Washington Parish, Louisiana 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 800 by 541 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 Washington Parish ranks

Position among the 64 parishes of Louisiana, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn LouisianaNationally
Population44,93726th of 641,099th of 3,144
Land area669.6 sq mi28th of 641,406th of 3,144
Population density67.1 per sq mi27th of 641,212th of 3,144
Median household income$45,38049th of 642,952nd of 3,143

Full data for Washington Parish

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population44,937Vintage 2025 Population Estimates
Population in 202045,358Vintage 2025 Population Estimates
2020 estimates base?45,459Vintage 2025 Population Estimates
Land area669.6 sq mi2025 Gazetteer Files
Water area6.2 sq mi2025 Gazetteer Files
Total area675.9 sq mi2025 Gazetteer Files
Population density?67.1 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$45,380American Community Survey 2020-2024 5-Year Estimates
Median home value$155,700American Community Survey 2020-2024 5-Year Estimates
Median age40.9American Community Survey 2020-2024 5-Year Estimates
Households17,716American Community Survey 2020-2024 5-Year Estimates
Housing units21,439American 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
-122
555 births, 677 deaths
Net migration
-76
More people moved out than moved in.

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

The 6 areas bordering Washington Parish

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
Pearl River CountyMississippi52 mi59,363
Tangipahoa ParishLouisiana29 mi141,346
Walthall CountyMississippi25 mi13,928
St. Tammany ParishLouisiana25 mi279,108
Marion CountyMississippi6.9 mi24,001
Pike CountyMississippi5.2 mi38,712

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

All 64 parishes of Louisiana

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

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