Zip Code 70056
Gretna, Louisiana — Jefferson Parish
📍 ZIP code 70056 is in Gretna, Jefferson Parish, Louisiana.
ZIP code 70056 is located in Gretna, Jefferson Parish, Louisiana. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 42,471. The area code for ZIP code 70056 is 504.
Quick Answer
Zip code 70056 is in Gretna, Louisiana (Jefferson Parish). It has a population of 42,471, median household income of $61,831, and median home value of $223,000.
Population
42,471
Income
$61,831
Home Value
$223,000
Climate
92°F / 45°F
About Zip Code 70056
Zip code 70056 is located in Gretna, Louisiana, within Jefferson Parish. Home to approximately 42,471 residents, this area sits at an elevation of -4 ft and falls within the Central (CST/CDT) timezone. The local area code is 504.
The median household income is $61,831 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $223,000, and the cost of living index is 79 (21% below the national average of 100).
Summers average a high of 92°F while winters drop to 45°F. The area receives about 66 in of rain annually. The zip code covers 6.8 square miles of land area.
Key Statistics
42,471
$61,831
$223,000
Central (CST/CDT)
504
-4 ft
6.8 sq mi
35.1
15,784
Advertisement
Compare With Nearby Zip Codes
| Metric | 70056 | 70053 | 70058 | 70114 | 70037 | 70130 |
|---|---|---|---|---|---|---|
| City | Gretna, LA | Gretna, LA | Harvey, LA | New Orleans, LA | Belle Chasse, LA | New Orleans, LA |
| Population | 42,471 | 16,409 | 39,690 | 22,132 | 16,792 | 12,883 |
| Median Income | $61,831 | $43,786 | $58,533 | $41,435 | $92,193 | $82,758 |
| Home Value | $223,000 | $225,700 | $195,100 | $194,100 | $350,000 | $529,300 |
| Cost of Living | 79 | 69 | 70 | 60 | 115 | 150 |
| Median Age | 35.1 | 36.9 | 38.2 | 41.1 | 35.6 | 39.7 |
Cost of Living
100 = National Average. Gretna's cost of living is 21% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
3.6x
Demographics
Zip code 70056 has a population of 42,471 people with a median age of 35.1. There are 15,784 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Gretna (70056) population trend from 2010 to 2024
↑ 738.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
92°F
45°F
66 in
0 in
Gretna experiences hot summers with average highs around 92°F. Winters are mild with lows averaging 45°F. The area receives virtually no snowfall.
Advertisement
Housing & Economy
Median Home Value
$223,000
Median Household Income
$61,831
With 15,784 housing units across 6.8 square miles, 70056 has a housing density of 2,321 units per square mile. The home price-to-income ratio is 3.6x.
Location & Geography
Latitude
29.8874°
Longitude
-90.0273°
Land Area
6.8 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 70056 (Gretna, LA) with distances:
All Zip Codes in Gretna, LA
Other zip codes serving Gretna:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 70056's $61,831. A way to compare Gretna to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 70056 (Gretna, LA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
Explore Louisiana
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is Gretna, Louisiana?
Gretna, Louisiana uses zip code 70056 along with 1 other zip codes.
What county is zip code 70056 in?
Zip code 70056 is located in Jefferson Parish, Louisiana.
What is the population of zip code 70056?
The population of zip code 70056 is 42,471 with a median age of 35.1.
Is 70056 in Gretna, Louisiana?
Yes, zip code 70056 is in Gretna, Jefferson Parish, Louisiana. The area code is 504.
Frequently Asked Questions
What city is zip code 70056 in?
Zip code 70056 is in Gretna, Louisiana. It is part of Jefferson Parish and uses the Central (CST/CDT) timezone.
What is zip code 70056?
Zip code 70056 is a U.S. postal code in Gretna, Louisiana (Jefferson Parish). It has a population of 42,471 and covers 6.8 square miles.
What is the population of zip code 70056?
The population of zip code 70056 (Gretna, LA) is 42,471 with a median age of 35.1. There are approximately 15,784 housing units in this area.
What is the median income in zip code 70056?
The median household income in zip code 70056 (Gretna, LA) is $61,831 per year. The cost of living index is 79 (100 = national average).
What is the average home price in zip code 70056?
The median home value in zip code 70056 (Gretna, LA) is $223,000. The cost of living index is 79 compared to the national average of 100.
What county is zip code 70056 in?
Zip code 70056 is located in Jefferson Parish, Louisiana. The primary city is Gretna.
What is the area code for zip code 70056?
Zip code 70056 in Gretna, LA uses area code 504. It is located in the Central (CST/CDT) timezone.
Is zip code 70056 a good place to live?
Zip code 70056 (Gretna, LA) has a cost of living index of 79 (100 = national average), a median household income of $61,831, and median home values of $223,000. The median age is 35.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 70056?
The cost of living index for zip code 70056 (Gretna, LA) is 79, where 100 represents the national average. This area is below the national average. Median home value: $223,000.
What schools serve zip code 70056?
Zip code 70056 in Gretna, Louisiana is served by the local school district of Jefferson Parish. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
People Also Searched For
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.