ZIP Code 70057
standardHahnville · St. Charles County · Louisiana
ZIP code 70057 in Hahnville, Louisiana has a population of 4,719. The median household income is $90,236, which is 18% above the national average. Median home value is $239,100, 14% below the US average. 18.7% of residents hold a bachelor's degree or higher.
ZIP code 70057 is classified by USPS as a standard delivery area and covers roughly 99.8 square miles in Hahnville, St. Charles County, Louisiana. The area is home to 4,719 residents, producing a population density of 47 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 70057 against Louisiana and the nation.
On the economic side, the median household income for ZIP 70057 sits at $90,236 (51% above the Louisiana average), while per-capita income is $34,415. The poverty rate stands at 6.5% and the unemployment rate at 2.8%. On housing, the median home value is $239,100 (35% above the state average) with median rent at — per month, and 96.6% of occupied units are owner-occupied — a direct signal of whether 70057 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 18.7% of adults hold a bachelor's degree or higher, the median age is 41.1, and the average commute is 25 minutes. We also surface 8 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Charles County, so you can benchmark 70057 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data — no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 70057
Top 5 industries — ZIP 70057 (establishments)
Source: U.S. Census Bureau — American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 70057, Hahnville, LA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
4,719
Population
99.8
Area (sq mi)
47
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Demographics
41.1
Median Age
54.3%
Male
45.7%
Female
6.8%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Income & Employment
$90,236
Median Household Income
+51% vs state
$34,415
Per Capita Income
6.5%
Poverty Rate
2.8%
Unemployment Rate
25.1 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Education
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Housing
1,580
Total Housing Units
1,229
Occupied Units
351
Vacant Units
3.11
Avg Household Size
Occupancy Type
$239,100
Median Home Value
+35% vs state
1991
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Home Value Trends
FHFA House Price Index — annual appreciation data based on repeat sales and appraisals
+2.9%
YoY Change (2023)
188
HPI Index (2000 = 100)
+88%
Total Change Since 2000
Home values in ZIP 70057 have increased 2.9% over the past year (2023). Since 2000, this ZIP has seen +88% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | +0.9% | 146 |
| 2019 | +5.4% | 154 |
| 2020 | +4.6% | 161 |
| 2021 | +2.9% | 166 |
| 2023 | — | 188 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2023. ZIP codes with few transactions may show missing values.
Local Business Landscape
Census Bureau data shows 61 business establishments in ZIP 70057, employing approximately 3,213 people with a combined annual payroll of $415,581,000.
61
Businesses
3,213
Employees
$415.6M
Annual Payroll
10
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 11 | 18.0% |
| Transportation and warehousing | 9 | 14.8% |
| Construction | 8 | 13.1% |
| Manufacturing | 6 | 9.8% |
| Utilities | 4 | 6.6% |
| Wholesale trade | 4 | 6.6% |
| Retail trade | 4 | 6.6% |
| Finance and insurance | 4 | 6.6% |
| Administrative and support and waste management and remediation services | 4 | 6.6% |
| Other services (except public administration) | 3 | 4.9% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 70057 vs 70079 →
More ZIP Codes in St. Charles County
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Frequently Asked Questions
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Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
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Read our methodology — how this data is sourced, computed, and verified.