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Louisiana ZIP Codes
Jefferson County
Gretna, LA
70056
70056 ZIP Code — Gretna, LA
Jefferson County, Louisiana
ZIP code 70056 is located in
Gretna ,
Louisiana ,
within Jefferson County .
It covers approximately 6.76 square miles and serves a population of
42,627 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 504/985 .
About ZIP code 70056
The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $212,200. Owner-occupancy sits near the national average at 57%.
Median household income is $62,092.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.
Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.
16% of residents lack health insurance, above the national average.
70056 ZIP code map
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Cities in ZIP code 70056
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
42,627
Population density
6,306 / sq mi
State FIPS
22
County FIPS
051
Geography
Land area
6.76 sq mi
Water area
0.06 sq mi
Latitude
29.8872
Longitude
-90.0277
Timezone
Central (CT)
Area code
504/985
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.6%
45.0%
49.2%
$50k – $100k
35.3%
31.1%
27.7%
$100k – $200k
18.3%
19.0%
18.3%
Over $200k
3.9%
4.9%
4.7%
Demographics & statistics
$62,092
Median household income
$212,200
Median home value
$1,137
Median monthly rent
28.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 12,453 29.2%
18 and over 30,174 70.8%
65 and over 4,898 11.5%
Median age 34.5 years
Race & ethnicity
Black or African American
35.7%
American Indian / Alaska Native
0.6%
Group Count %
Black or African American 17,681 35.7%
White 14,872 30%
Hispanic or Latino 6,921 14%
Other race 4,915 9.9%
Two or more races 3,161 6.4%
Asian 1,722 3.5%
American Indian / Alaska Native 276 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.6%
45.0%
49.2%
$50k – $100k
35.3%
31.1%
27.7%
$100k – $200k
18.3%
19.0%
18.3%
Over $200k
3.9%
4.9%
4.7%
Range % of households
Under $10k 3.5%
$10k–$15k 3.5%
$15k–$25k 8.5%
$25k–$35k 11.4%
$35k–$50k 13.6%
$50k–$75k 17.9%
$75k–$100k 13.4%
$100k–$150k 15.2%
$150k–$200k 7.2%
$200k+ 5.7%
Median income $62,092
Housing
Housing overview
Metric Value
Median home value $212,200
Median rent / month $1,137
Owner occupied 56.5%
Renter occupied 43.5%
Vacant 5.9%
Single-family detached 61.1%
Large apartment buildings 4.8%
Mobile homes 1.4%
Median rooms 5.8
Avg household size (owned) 2.91
Year built
Era %
2020 or later 0.3%
2010–2019 2.4%
2000–2009 8.1%
1990–1999 9.5%
1980–1989 23.8%
1970–1979 34.8%
1960–1969 16.4%
1950–1959 4.2%
1940–1949 0.4%
1939 or earlier 0.2%
Bedrooms
Size % of units
No bedroom (studio) 0.5%
1 bedroom 13.4%
2 bedrooms 18.1%
3 bedrooms 40.5%
4 bedrooms 25.2%
5+ bedrooms 2.3%
Vehicles per household
Vehicles % of households
No vehicle 7.4%
1 vehicle 40.6%
2 vehicles 33.0%
3 or more 19.0%
Heating fuel
Fuel type %
Utility gas 40.3%
Electricity 58.4%
Propane / LP gas 0.9%
Solar 0.2%
No fuel used 0.2%
Households & families
Household type Count %
Married-couple family 6,345 44.0%
Cohabiting couple 964 6.7%
Male householder, no spouse 2,797 19.4%
Female householder, no spouse 4,319 29.9%
Households with children under 18 5,530 38.3%
Households with seniors (65+) 3,507 24.3%
Average household size 2.94
Marital status
Status Male Female
Never married 36.9% 37.1%
Married 48.3% 40.4%
Separated 1.8% 2.1%
Widowed 2.3% 7.2%
Divorced 10.8% 13.3%
Education
Some college, no degree
21.1%
Graduate / professional
9.0%
Metric %
HS diploma or higher 86.5%
Bachelor's or higher 28.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 828 7.5%
Kindergarten 541 4.9%
Elementary school 5,232 47.2%
High school 2,353 21.2%
College / grad school 2,123 19.2%
Employment
Industry of employment
Education & healthcare
22.0%
Professional & management
11.1%
Arts, food & hospitality
9.2%
Transportation & utilities
8.4%
Public administration
5.5%
Finance & real estate
5.4%
Agriculture & mining
1.6%
Occupation
Category %
Management, business & arts 31.7%
Service 20.3%
Sales & office 19.0%
Natural resources & construction 15.3%
Production & transportation 13.7%
Employment type
Type %
Private sector 81.8%
Government 12.9%
Self-employed 5.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 75.3%
Carpool 14.0%
Public transit 1.9%
Walk 0.8%
Work from home 6.3%
Other means 1.6%
Avg commute (minutes) 25.0
Poverty
Married-couple families
8.1%
Female-led households
28.7%
Income support
Source % of households
Social Security 25.8%
Retirement income 20.9%
Supplemental Security 5.7%
Cash public assistance 1.2%
Food stamps / SNAP 15.1%
Health indicators
Condition %
Obesity 39.5%
High blood pressure 35.9%
High cholesterol 33.1%
Diabetes 12.7%
Heart disease 5.9%
Stroke 3.3%
Asthma 9.5%
Arthritis 22.8%
Kidney disease 2.9%
Pulmonary disease 6.6%
Cancer 5.2%
Behavior / access %
Smoking 19.1%
Binge drinking 19.2%
No physical activity 31.7%
Less than 7 hrs sleep 39.7%
Depression 23.3%
Fair or poor health 18.9%
Poor mental health 17.7%
Poor physical health 11.6%
No health insurance 17.3%
Visited doctor (checkup) 76.8%
Visited dentist 56.1%
Cholesterol screening 88.7%
Teeth loss 15.5%
Veterans & disability
Veterans Count %
Civilian veterans 1,946 6.5%
Disability %
Any disability 13.6%
Under 18 5.4%
18–64 years 12.8%
65 and over 38.8%
Health insurance coverage
Type %
Private insurance 49.5%
Public insurance 43.2%
No insurance 15.5%
Uninsured under 19 8.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 38,077 89.3%
Spanish 5,447 14.3%
Other Indo-European 4,022 10.6%
Asian & Pacific Islander 344 0.9%
Other languages 684 1.8%
Place of birth & citizenship
Origin Count %
Native born (US) 34,352 80.6%
Born in same state 33,710 79.1%
Born in different state 27,219 63.9%
Foreign born 642 1.5%
Naturalized citizen 8,275 19.4%
Not a US citizen 2,855 34.5%
Ancestry
Ancestry Count %
Italian 2,386 5.6%
Arab 1,848 4.3%
French 1,097 2.6%
German 229 0.5%
Ancestry Count %
English 93 0.2%
Dutch 24 0.1%
Polish 4 0%
Technology access
Metric % of households
Computer access 33.8%
Internet access 95.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 70056
What city is ZIP code 70056 in?
ZIP code 70056 is primarily assigned to Gretna, Louisiana.
What county is ZIP code 70056 in?
ZIP code 70056 falls within Jefferson County, Louisiana.
What is the poverty rate in ZIP code 70056?
16% of residents in ZIP code 70056 live below the poverty line, above the national average.
What is the population of ZIP code 70056?
ZIP code 70056 has an estimated population of 42,627 residents, with a density of 6,302 people per square mile.
What is the typical home value in ZIP code 70056?
The median home value in ZIP code 70056 is $212,200.
What is the median household income in ZIP code 70056?
The median household income in ZIP code 70056 is $62,092, below the national median of ~$75,000.
What timezone is ZIP code 70056 in?
ZIP code 70056 observes the CST timezone.
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