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County ZIP codes · Louisiana · FIPS 22117

Washington Parish, LA ZIP Codes

Washington Parish, Louisiana has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 6 residential and 2 for PO boxes or a single organization. 4 of the residential ones lie mainly in Washington Parish and 2 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $38,074 in 70427 (Bogalusa) to $52,864 in 70438 (Franklinton) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Washington Parish?

70426 · Angie: $30k70427 · Bogalusa: $38k70431 · Bush: $70k70438 · Franklinton: $53k70444 · Kentwood: $52k70450 · Mount Hermon: $61k70438704447042770426704317045070426 · Angie: $30k70427 · Bogalusa: $38k70431 · Bush: $70k70438 · Franklinton: $53k70444 · Kentwood: $52k70450 · Mount Hermon: $61k70438704447042770426704317045070426 · Angie: $30k70427 · Bogalusa: $38k70431 · Bush: $70k70438 · Franklinton: $53k70444 · Kentwood: $52k70450 · Mount Hermon: $61k704387044470427704267043170450
The residential ZIP codes of Washington Parish (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 6 postal town names: Franklinton, Bogalusa, Kentwood, Angie, Bush, Mount Hermon.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 6 residential ZIP codes in Washington Parish

4 ZIP codes lie mainly in Washington Parish; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Washington Parish, largest first; "In this county" is the share of the ZIP's land in the county
In this county
70438 Franklinton 19,349 56 $53k $168k 96%
70427 Bogalusa 17,596 124 $38k $133k 90%
70426 Angie 6,090 49 $30k $127k 100%
70450 Mount Hermon 2,921 40 $61k $200k 100%

Partly in Washington Parish

Residential ZIP codes mainly in another county that reach at least 1% into Washington Parish, by their share here
In this county
70431 Bush 5,769 83 $70k $246k 6%
70444 Kentwood 8,687 36 $52k $178k 1%

Download the 8 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

4 ZIP codes of Washington Parish extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Washington Parish and in the neighboring counties
ZIPIn WashingtonElsewhere
7043896%St. Tammany Parish 3%
7042790%St. Tammany Parish 10%
704441%Tangipahoa Parish 71%; St. Helena Parish 28%
704316%St. Tammany Parish 94%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Washington Parish without a residential area (GeoNames postal codes)
ZIPPostal name
70429Bogalusa
70467Varnado

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Washington Parish's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Washington Parish starts with 704.

Three-digit prefixes of Washington Parish's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Washington Parish's
PrefixSectional centerHereAll codes
704 New Orleans, LA (SCF 700) 8 47

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.