Residential delivery area · Louisiana
ZIP Code 70057: Hahnville, LA
ZIP code 70057 uses the postal name Hahnville, Louisiana and lies entirely in St. Charles Parish (Census 2020 ZIP-county file). About 4,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $90,236 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Hahnville (13%), Taft (11%) and Killona (2%), and 5% in smaller places; 70% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Hahnville · its only residential ZIP
- County
- St. Charles Parish
- Census places
- Hahnville (13%) census-designated place; Taft (11%) census-designated place; Killona (2%) census-designated place
- Metro area
- New Orleans-Metairie, LA
- House district
- LA-2 119th Congress
- State
- Louisiana
- Time zone
- Central
- Land area
- 44.5 sq mi · 93 people per sq mi
Where is ZIP code 70057?
70057 centers on 29.962°, -90.464° and covers 44.5 square miles of land plus 2.9 of water. It borders 7 ZIP codes: 70079, 70047, 70080, 70049, 70039, 70070, 70068.
The map draws ZIP code areas only. For the streets inside 70057, 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 70057 compare with the rest of St. Charles Parish?
| Measure | 70057 | In St. Charles Parish | In LA |
|---|---|---|---|
| People (ACS 2020-2024) | 4,122 | 6th of 10 | 243rd of 539 |
| Median household income | $90k | not ranked | not ranked |
| Median home value | $239k | 3rd of 9 | 73rd of 285 |
70057's median household income is not ranked: its 90% margin of error (±$23,231) is more than a quarter of the figure ($90,236). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 53% of 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 70057?
The 2020 Census counted 4,201 people in 70057; the ACS, which samples households over 2020-2024, estimates 4,122. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,122±695 (90% margin)
- 2020 Census count
- 4,201
- Households
- 1,229
- Median age
- 41.1
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 70057?
Of the 4,122 people the ACS estimates in 70057, 18.7% are under 18 and 14.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (52.6%), then Black (not Hispanic) (28.3%).
- Under 1818.7%
- 18 to 6466.8%
- 65 and older14.5%
- White, not Hispanic52.6%
- Black, not Hispanic28.3%
- Hispanic or Latino14.4%
- Other or two or more4.8%
- Asian, not Hispanic0.0%
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 70057 earn?
Median household income is $90,236 (ACS 2020-2024).
- Median household income
- $90,236±$23,231
- Income per person
- $34,415
- Below the poverty line
- 6.5%
- Unemployed (of the labor force)
- 2.8%
- Adults 25+ with a bachelor's degree
- 18.7%
- Adjusted gross income per tax return, 2022
- $67,7071,820 returns; wages 80% 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 70057?
FHFA's house price index for 70057, built from repeat sales and appraisals of the same homes, rose 42% from 2015 to 2025 and rose 24% from 2020 to 2025.
- Median home value (owners' estimate)
- $239,100
- Median gross rent
- –
- Homes owned by their occupants
- 96.6%
- Housing units
- 1,580
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 70057?
61 business establishments had a location in this ZIP code in 2023, 10 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services11
- Transportation and warehousing9
- Construction8
- Manufacturing6
- Utilities4
- Wholesale trade4
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 70057?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 70079 | Norco | 2,757 | $71k | 4.2 mi |
| 70047 | Destrehan | 13,220 | $87k | 6.6 mi |
| 70080 | Paradis | 586 | $62k | 6.8 mi |
| 70049 | Edgard | 1,482 | $69k | 7.5 mi |
| 70039 | Boutte | 1,993 | $68k | 7.8 mi |
| 70070 | Luling | 13,960 | $77k | 13.0 mi |
| 70068 | La Place | 32,720 | $69k | 13.5 mi |
| 70087 | Saint Rose | 7,314 | $73k | 8.9 mi (near) |
| 70030 | Des Allemands | 4,290 | $119k | 10.0 mi (near) |
| 70084 | Reserve | 5,629 | $62k | 10.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.