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County ZIP codes · Louisiana · FIPS 22057

Lafourche Parish, LA ZIP Codes

Lafourche Parish, Louisiana has 17 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 15 residential and 2 for PO boxes or a single organization. 11 of the residential ones lie mainly in Lafourche Parish and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $48,462 in 70354 (Galliano) to $87,143 in 70373 (Larose) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Lafourche Parish?

70030 · Des Allemands: $119k70301 · Thibodaux: $58k70310 · Thibodaux: –70343 · Bourg: $74k70345 · Cut Off: $62k70354 · Galliano: $49k70355 · Gheens: $56k70357 · Golden Meadow: $71k70359 · Gray: $56k70364 · Houma: $69k70373 · Larose: $87k70374 · Lockport: $71k70375 · Mathews: –70377 · Montegut: $61k70394 · Raceland: $64k7035770301703457035570377703737039470354703747036470343700307035970030 · Des Allemands: $119k70301 · Thibodaux: $58k70310 · Thibodaux: –70343 · Bourg: $74k70345 · Cut Off: $62k70354 · Galliano: $49k70355 · Gheens: $56k70357 · Golden Meadow: $71k70359 · Gray: $56k70364 · Houma: $69k70373 · Larose: $87k70374 · Lockport: $71k70375 · Mathews: –70377 · Montegut: $61k70394 · Raceland: $64k7035770301703457035570377703737039470354703747036470343700307035970030 · Des Allemands: $119k70301 · Thibodaux: $58k70310 · Thibodaux: –70343 · Bourg: $74k70345 · Cut Off: $62k70354 · Galliano: $49k70355 · Gheens: $56k70357 · Golden Meadow: $71k70359 · Gray: $56k70364 · Houma: $69k70373 · Larose: $87k70374 · Lockport: $71k70375 · Mathews: –70377 · Montegut: $61k70394 · Raceland: $64k703577030170345703557037770373703947035470374703647034370030
The residential ZIP codes of Lafourche 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?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $58,394 and $70,833.

They carry 14 postal town names.

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

All 15 residential ZIP codes in Lafourche Parish

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

Residential ZIP codes mainly in Lafourche Parish, largest first; "In this county" is the share of the ZIP's land in the county
In this county
70301 Thibodaux 50,095 177 $58k $218k 97%
70394 Raceland 13,395 160 $64k $200k 100%
70345 Cut Off 8,344 65 $62k $165k 100%
70374 Lockport 5,872 133 $71k $180k 100%
70373 Larose 5,539 101 $87k $171k 100%
70343 Bourg 5,280 231 $74k $204k 51%
70354 Galliano 3,404 50 $49k $112k 100%
70357 Golden Meadow 2,351 13 $71k $133k 100%
70355 Gheens 957 9 $56k $103k 100%
70310 Thibodaux 327 1,730 – – 100%
70375 Mathews 178 24 – – 100%

Partly in Lafourche Parish

Residential ZIP codes mainly in another county that reach at least 1% into Lafourche Parish, by their share here
In this county
70364 Houma 28,716 681 $69k $192k 42%
70377 Montegut 3,056 36 $61k $131k 39%
70359 Gray 10,038 697 $56k $153k 19%
70030 Des Allemands 4,290 153 $119k $223k 13%

Download the 17 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?

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

Share of each ZIP code's land in Lafourche Parish and in the neighboring counties
ZIPIn LafourcheElsewhere
7030197%Assumption Parish 2%
7036442%Terrebonne Parish 58%
7035919%Terrebonne Parish 81%
7034351%Terrebonne Parish 49%
7003013%St. Charles Parish 87%
7037739%Terrebonne Parish 61%

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

PO Box and single-organization ZIP codes

ZIP codes in Lafourche Parish without a residential area (GeoNames postal codes)
ZIPPostal name
70302Thibodaux
70371Kraemer

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Lafourche Parish's ZIP codes use 2 prefixes: 700 and 703.

Three-digit prefixes of Lafourche 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 Lafourche Parish's
PrefixSectional centerHereAll codes
700 New Orleans, LA (SCF 700) 1 64
703 New Orleans, LA (SCF 700) 16 38

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