Postal Codes

70056 ZIP Code

Advertisement

English Español

ZIP code 70056 covers Gretna, Louisiana, with a population of about 42,471 and a median household income of $61,831.

Population
42,4716,279 per square mile
Median age
35.13.6 points below the US average
Median household income
$61,831about the Louisiana median
Poverty rate
18.7%6.3 points above the US average
Typical home value
$254,961down 3.1% in five years
Median rent
$1,1631.1× the Louisiana median
Degree or higher
28.2%6.8 points below the US average
Homeownership
57.6%7.4 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
641

Where 70056 is

Gretna, Louisiana — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population42,471
Median age35.1
Family households68.6%
Born outside the US19.7%
Speaks a language other than English at home32.8%
White (non-Hispanic)32.2%
Black (non-Hispanic)33.7%
Asian (non-Hispanic)4.1%
Hispanic or Latino26.4%
Veterans6.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$61,831
Income per person$29,287
Poverty rate18.7%
Households on SNAP or cash assistance16.4%

Household income distribution

Under $10k3.8%
$10–15k3.6%
$15–20k2.5%
$20–25k6.6%
$25–30k5.1%
$30–35k4.3%
$35–40k6.7%
$40–45k4.2%
$45–50k4.2%
$50–60k7.5%
$60–75k10.8%
$75–100k14.1%
$100–125k7.9%
$125–150k5.5%
$150–200k7.8%
$200k or more5.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed16,800
Mean adjusted gross income$54,361
Returns declaring $200,000 or more2.7%
Returns, under $25k39.6%
Returns, $25k–$50k26.4%
Returns, $50k–$75k14.1%
Returns, $75k–$100k7.3%
Returns, $100k–$200k9.8%
Returns, $200k or more2.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$223,000
Median gross rent$1,163
Rent as a share of household income31%
Owner-occupied57.6%
Vacant homes5.9%
Median year built1978

What the homes are

Detached house60.4%
Attached house3.8%
2 to 4 units13.6%
5 to 19 units17%
20 or more units3.9%
Mobile home1.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$254,961as of 2026-07
Typical home value, 1 yearup 6.9%
Typical home value, 5 yearsdown 3.1%
Typical home value, 10 yearsup 28.8%
Typical asking rent$1,808as of 2026-07
Typical asking rent, 1 yearup 1.4%
Typical home value since 2000
200020132026$278,101$150,527

$150,527 in 2000 to $254,961 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate7.8%
Bachelor's degree or higher28.2%
High school diploma or higher86.6%
Works from home6.5%
Drives to work alone77.2%
Takes public transport1.2%
Commutes 45 minutes or more10%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity43.5% 10.1 pts above the national average of 33.4%
Diagnosed diabetes16.4% 4.4 pts above the national average of 12%
Currently smokes16.2% 3 pts above the national average of 13.2%
High blood pressure41.9% 7.8 pts above the national average of 34.1%
Fair or poor general health25.5% 5.2 pts above the national average of 20.3%
No health insurance (18–64)11.7% same as the national average of 11.3%
Depression24.1% 2.2 pts above the national average of 21.9%
No leisure-time physical activity32.5% 7.1 pts above the national average of 25.4%
Arthritis27.2% 2.1 pts above the national average of 25.1%
Binge drinking16.1% same as the national average of 16%
Taking blood pressure medication78.2% 3.5 pts above the national average of 74.7%
Cancer (non-skin)6.1% 1.6 pts below the national average of 7.7%
Current asthma10.2% same as the national average of 10.4%
Coronary heart disease6.8% 0.6 pts above the national average of 6.2%
Routine check-up in past year82.5% 5.8 pts above the national average of 76.7%
Cholesterol screening86.5% 0.6 pts above the national average of 85.9%
Cognitive disability18.6% 3.8 pts above the national average of 14.8%
Colorectal screening65.4% 1.1 pts above the national average of 64.3%
COPD7.5% 0.9 pts above the national average of 6.6%
Visited a dentist55.8% 5.5 pts below the national average of 61.3%
Any disability36.3% 5.6 pts above the national average of 30.7%
Lacks emotional support30.4% 5.6 pts above the national average of 24.8%
Food insecurity26.3% 9.2 pts above the national average of 17.1%
Received food stamps21.3% 7 pts above the national average of 14.3%
Hearing disability7% same as the national average of 6.7%
High cholesterol36.3% same as the national average of 36.2%
Housing insecurity20.5% 6.7 pts above the national average of 13.8%
Independent living disability10.3% 1.9 pts above the national average of 8.4%
Lacks transport13% 3.8 pts above the national average of 9.2%
Loneliness39% 4.6 pts above the national average of 34.4%
Mammography use81.2% 5.3 pts above the national average of 75.9%
Poor mental health (14+ days)19.2% 2.4 pts above the national average of 16.8%
Mobility disability17.1% 3.1 pts above the national average of 14%
Poor physical health (14+ days)14.6% 1.1 pts above the national average of 13.5%
Self-care disability5.3% 1.3 pts above the national average of 4%
Utility shut-off threat14.9% 6.1 pts above the national average of 8.8%
Sleeps under 7 hours42.9% 6.5 pts above the national average of 36.4%
Stroke4.1% 0.7 pts above the national average of 3.4%
All natural teeth lost15.7% 2.7 pts above the national average of 13%
Vision disability7.4% 1.8 pts above the national average of 5.6%
Advertisement
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments641
People employed7,741
Annual payroll$373,291,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 86.6% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 11 census tracts this ZIP code covers
Expected annual loss83.7 out of 100
Community resilience96.4 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hurricane98.2Very High at its worst in this ZIP code
Coastal flooding87.9Relatively Moderate at its worst in this ZIP code
Lightning83Relatively High at its worst in this ZIP code
Heat wave80.7Relatively High at its worst in this ZIP code
Cold wave74.6Relatively High at its worst in this ZIP code
Hail70.8Relatively Moderate at its worst in this ZIP code
River flooding51.8Relatively High at its worst in this ZIP code
Winter weather50.5Relatively Moderate at its worst in this ZIP code
Tornado31Relatively Low at its worst in this ZIP code
Landslide29.4Very Low at its worst in this ZIP code
Earthquake27.5Relatively Low at its worst in this ZIP code
Strong wind26.4Relatively Low at its worst in this ZIP code
Ice storm11.8Very Low at its worst in this ZIP code
Wildfire4.2Very Low at its worst in this ZIP code
Compared with Louisiana and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPLouisianaUnited States
Median household income$61,831$60,023$78,538
Income per person$29,287$34,211$43,289
Poverty rate18.7%18.9%12.4%
Median home value$223,000$208,700$303,400
Median gross rent$1,163$1,038$1,348
Homeownership57.6%67.3%65%
Bachelor's degree or higher28.2%26.6%35%
Unemployment rate7.8%6.3%5.2%
Works from home6.5%7.2%13.5%
Born outside the US19.7%4.7%13.9%
Median age35.137.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationTERRYTOWN 3S, LA US2.5 km away
Rain in a year66 in

Average high and low by month

January62.9°F / 45°F5.76 in rain
February66.3°F / 48.6°F4.04 in rain
March72.8°F / 54.1°F5.16 in rain
April78.4°F / 60.6°F5.2 in rain
May85.2°F / 68.3°F4.66 in rain
June90°F / 74.5°F6.86 in rain
July91.9°F / 76.2°F7.32 in rain
August91.9°F / 76.2°F6.84 in rain
September88.7°F / 73°F6.81 in rain
October81.2°F / 63.1°F3.74 in rain
November71.6°F / 52.9°F4.15 in rain
December65.1°F / 47.7°F5.4 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket33% of this ZIP code's area
No vehicle and far from a supermarket11% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Jefferson Parish School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability72more vulnerable than 72% of US census tracts
Socioeconomic status74more vulnerable than 74% of US census tracts
Household characteristics84more vulnerable than 84% of US census tracts
Racial and ethnic minority status78more vulnerable than 78% of US census tracts
Housing type and transport45more vulnerable than 45% of US census tracts
Walkability8.2 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

70053 Gretna, LA3.3 km away
70054 Gretna, LA3.7 km away
70058 Harvey, LA3.7 km away
70059 Harvey, LA4.6 km away
70131 New Orleans, LA4.9 km away
70158 New Orleans, LA5.4 km away
70093 Belle Chasse, LA5.4 km away
70114 New Orleans, LA5.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Jefferson Parish100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area6.76 sq mi
Water area0.06 sq mi
Population density6,279 people per sq mi
Latitude, longitude29.8872, -90.0331

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

Advertisement