Residential delivery area · Louisiana
ZIP Code 70345: Cut Off, LA
ZIP code 70345 uses the postal name Cut Off, Louisiana and lies entirely in Lafourche Parish (Census 2020 ZIP-county file). About 8,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $62,216 (Census Bureau, ACS 2020-2024). By Census place, 11% of its land lies in Cut Off (a census-designated place), and 5% in smaller places; 84% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cut Off · its only residential ZIP
- County
- Lafourche Parish
- Census places
- Cut Off census-designated place
- Metro area
- Houma-Bayou Cane-Thibodaux, LA
- House district
- LA-1 119th Congress
- State
- Louisiana
- Time zone
- Central
- Land area
- 128.8 sq mi · 65 people per sq mi
Where is ZIP code 70345?
70345 centers on 29.502°, -90.238° and covers 128.8 square miles of land plus 28.1 of water. It borders 4 ZIP codes: 70373, 70354, 70357, 70377.
The map draws ZIP code areas only. For the streets inside 70345, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 70345 compare with the rest of Lafourche Parish?
| Measure | 70345 | In Lafourche Parish | In LA |
|---|---|---|---|
| People (ACS 2020-2024) | 8,344 | 5th of 15 | 170th of 539 |
| Median household income | $62k | 7th of 11 | 106th of 251 |
| Median home value | $165k | 8th of 12 | 172nd of 285 |
Its median household income is higher than in 33% of U.S. residential ZIP codes, and it is denser than 47% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 70345?
The 2020 Census counted 9,119 people in 70345; the ACS, which samples households over 2020-2024, estimates 8,344. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 8,344±928 (90% margin)
- 2020 Census count
- 9,119
- Households
- 3,343
- Median age
- 41.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 70345?
Of the 8,344 people the ACS estimates in 70345, 23.9% are under 18 and 16.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (66.9%), then Hispanic or Latino (16.9%).
- Under 1823.9%
- 18 to 6459.5%
- 65 and older16.6%
- White, not Hispanic66.9%
- Hispanic or Latino16.9%
- Other or two or more13.6%
- Black, not Hispanic1.5%
- Asian, not Hispanic1.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 70345 earn?
Median household income is $62,216 (ACS 2020-2024), the 7th highest of the 11 ranked ZIP codes in Lafourche Parish.
- Median household income
- $62,216±$13,584
- Income per person
- $31,998
- Below the poverty line
- 17.9%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 14.4%
- Adjusted gross income per tax return, 2022
- $76,4863,400 returns; wages 64% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 70345?
FHFA's house price index for 70345, built from repeat sales and appraisals of the same homes, rose 10% from 2015 to 2025 and rose 13% from 2020 to 2025, and moved −19.0% in 2025.
- Median home value (owners' estimate)
- $164,500
- Median gross rent
- $802
- Homes owned by their occupants
- 81.6%
- Housing units
- 3,664
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 70345?
158 business establishments had a location in this ZIP code in 2023, 18 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade28
- Transportation and warehousing19
- Finance and insurance15
- Accommodation and food services14
- Health care and social assistance13
- Construction10
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 70345?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 70373 | Larose | 5,539 | $87k | 8.0 mi |
| 70354 | Galliano | 3,404 | $49k | 8.0 mi |
| 70357 | Golden Meadow | 2,351 | $71k | 17.1 mi |
| 70377 | Montegut | 3,056 | $61k | 17.9 mi |
| 70036 | Barataria | 544 | $79k | 14.1 mi (near) |
| 70067 | Lafitte | 2,754 | $63k | 16.7 mi (near) |
| 70374 | Lockport | 5,872 | $71k | 17.4 mi (near) |
| 70355 | Gheens | 957 | $56k | 17.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.