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County ZIP codes · Louisiana · FIPS 22121

West Baton Rouge Parish, LA ZIP Codes

West Baton Rouge Parish, Louisiana has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in West Baton Rouge Parish and 1 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $55,352 in 70764 (Plaquemine) to $108,041 in 70710 (Addis) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of West Baton Rouge Parish?

70710 · Addis: $108k70719 · Brusly: $106k70729 · Erwinville: $110k70764 · Plaquemine: $55k70767 · Port Allen: $68k7076470767707297071970710 · Addis: $108k70719 · Brusly: $106k70729 · Erwinville: $110k70764 · Plaquemine: $55k70767 · Port Allen: $68k7076470767707297071970710 · Addis: $108k70719 · Brusly: $106k70729 · Erwinville: $110k70764 · Plaquemine: $55k70767 · Port Allen: $68k70764707677072970719
The residential ZIP codes of West Baton Rouge 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 5 postal town names: Port Allen, Plaquemine, Addis, Brusly, Erwinville.

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

All 5 residential ZIP codes in West Baton Rouge Parish

4 ZIP codes lie mainly in West Baton Rouge Parish; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in West Baton Rouge Parish, largest first; "In this county" is the share of the ZIP's land in the county
In this county
70767 Port Allen 14,900 98 $68k $206k 96%
70710 Addis 7,252 905 $108k $247k 100%
70719 Brusly 4,856 312 $106k $233k 100%
70729 Erwinville 1,004 58 $110k $300k 76%

Partly in West Baton Rouge Parish

Residential ZIP codes mainly in another county that reach at least 1% into West Baton Rouge Parish, by their share here
In this county
70764 Plaquemine 14,757 78 $55k $164k 5%

Download the 5 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?

3 ZIP codes of West Baton Rouge Parish extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in West Baton Rouge Parish and in the neighboring counties
ZIPIn West Baton RougeElsewhere
7076796%Pointe Coupee Parish 4%
707645%Iberville Parish 95%
7072976%Pointe Coupee Parish 24%

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

Which first three digits do West Baton Rouge 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 West Baton Rouge Parish starts with 707.

Three-digit prefixes of West Baton Rouge 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 West Baton Rouge Parish's
PrefixSectional centerHereAll codes
707 Baton Rouge, LA (SCF 707) 5 67

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