ZIP Codes of Washington Parish, LA

Population & People
Population & People
Total Population
45,956
Household Income
Household Income
Median Income
$45,523
Housing
Housing
Total Housing Units
22,012
Business & Economy
Business & Economy
Total Businesses
659
Employment
Employment
Employment Rate
44.99%
Education
Education
Bachelor's Degree+
12.89%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this parish.
Data Last Updated: July 1, 2026
ZIP Codes:6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All]
Area Code:985
Timezone:Central (GMT -06:00)
Local Time:11:53:44 PM
Population:45,956 [See All]
FIPS:22117
CBSA:Bogalusa, LA
Land Area:700 sq mi
Water Area:7 sq mi
Coordinates:30.8576, -89.9786
Quick Link:
https://www.zip-codes.com/county/la-washington.asp
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Louisiana's #23 most populous parish
45,956 residents across 6 ZIPs — #23 of 64 Louisiana counties.

Standout ZIPs in this Parish


Most Populous
Franklinton · 19,349 people
42.1% of county total
Highest Income
Mount Hermon · $61,333 median
1.3× county average
Largest Land Area
Franklinton · 344.4 sq mi
Spans the most ground
Fastest Growth
Franklinton · 7.5% (10-yr)
18,006 → 19,349 residents
Most Educated
Mount Hermon · 18.3% bachelor's+
377 of 2,062 adults 25+

Things worth knowing about Washington Parish


45,956 residents live across 6 ZIPs covering 700 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 47,147 to 45,956 from 2014 to 2024 — a -2.5% change. 1 ZIPs gained residents, 3 lost.

The parish's wealthiest ZIP 70450 (Mount Hermon, $61,333 median) and poorest ZIP 70426 (Angie, $29,821) are 22.4 miles apart — a 2.1× income gap across local geography.

Median home values vary 1.6× across this parish — from $126,600 in 70426 (Angie) to $200,000 in 70450 (Mount Hermon).

Density varies across the parish — from 40 people/sq mi in 70450 (Mount Hermon) to 115 in 70427 (Bogalusa).

Educational attainment ranges from 8.4% bachelor's+ in 70426 (Angie) to 18.3% in 70450 (Mount Hermon) — the breadth of educational profiles across the area.

Within Louisiana, this is the #23 most populous of 64 parishes and ranks #54 for median household income .

Weighted by population, the typical household earns about $44,686 across the parish — reflecting what a typical resident sees, not a simple ZIP average.

12.9% of adults age 25+ hold a bachelor's degree or higher (4,063 of 31,524 reporting).

4 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this parish.

Stories about Washington Parish


Big & sparse

A frontier parish — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
700
square miles
Avg density
65.7
people per sq mi
Population
45,956
across 6 ZIPs
Franklinton
344.4 sq mi
19,349 residents
Bogalusa
152.7 sq mi
17,596 residents
Angie
128.7 sq mi
6,090 residents

All ZIP Codes in Washington Parish


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
70438FranklintonStandard19,349$52,864344.47.5%
70427BogalusaStandard17,596$38,074152.7-10.1%
70426AngieStandard6,090$29,821128.7-6.1%
70450Mount HermonStandard2,921$61,33373.9-5.1%
70467VarnadoPO Box0.0
70429BogalusaPO Box0.0

Adjacent & Nearby Counties