Carville ZIP Codes — Iberville County, LA

There is one unique ZIP code in Carville, Louisiana and it is 70721. Area code: 225.
1
ZIP codes
3.58
sq mi land
0.00
sq mi water
225
area code
Carville, LA ZIP code map

About Carville, LA

Carville is a small community located in Louisiana that offers a unique blend of history and charm. Nestled in Iberville County, this quaint locale is known for its serene environment. With a single ZIP code, 70721, Carville provides a tight-knit community feel that residents and visitors cherish.

Location & geography

The city of Carville is positioned in the southeastern part of the state of Louisiana, approximately 25 miles from Baton Rouge. Surrounding cities include Saint Gabriel located about 10 miles to the southeast, Pierre Part approximately 15 miles to the southwest, and Gonzales around 20 miles to the east. The total land area of Carville is 3.58 square miles, with no water area, offering a predominantly land-based terrain.

Community & economy

The character of Carville is deeply influenced by its historical significance, with a strong sense of community among its residents. Industries in the area may include agriculture and small local businesses that contribute to daily life and community involvement. Residents enjoy a slower pace of life that allows them to connect with one another and appreciate the local culture.

Transportation

Carville is accessible via Louisiana State Highway 1, which connects it to larger metropolitan areas and neighboring cities. The nearest major airport is Baton Rouge Metropolitan Airport, located about 30 miles to the west, facilitating wider travel options.

History

Carville has historical roots tied to its establishment in the 1800s, primarily known for being the site of a leprosarium during the early 20th century. Key industries in the area have revolved around health services and agriculture, reflecting the community's growth and adaptation over the years. Notable events in Carville's past also include its development as a significant healthcare facility.

Did you know?

A little-known fact about Carville is that it was once home to a national leprosarium, which significantly impacted its historical narrative. Residents are proud of this unique aspect of their community's history, which sets it apart from other towns in Louisiana.

ZIP codes for Carville, LA (1)
ZIP code City County Map
70721 Carville Iberville View map

Demographics & statistics

484
Population
30.2
Median age
$2,499
Median household income
$25,789
Per capita income
$182,900
Median home value
$277
Median monthly rent
89.8%
Home ownership
44.1%
Poverty rate
34.4%
Unemployment
274
Housing units
9.7%
Bachelor's or higher

Age distribution

Male Female
9
Under 5
4
7
5–9
4
13
10–14
7
52
15–19
26
27
20–24
14
70
25–34
35
33
35–44
16
15
45–54
7
58
55–59
29
9
60–64
5
20
65–74
10
9
85+
5
← Male
Female →

Age summary

GroupCount%
Under 1812225.2%
18 and over36274.8%
65 and over449.1%
Median age30.2 years

Race & ethnicity

Black or African American 64.5%
White 35.3%
Asian 0.2%
GroupCount%
Black or African American31264.5%
White17135.3%
Asian10.2%

Household income

Under $10k 52.4%
$15k–$25k 9.0%
$25k–$35k 7.8%
$100k–$150k 25.9%
$200k+ 4.8%
Range% of households
Under $10k52.4%
$15k–$25k9.0%
$25k–$35k7.8%
$100k–$150k25.9%
$200k+4.8%
Median income$2,499

Housing

Home values

Under $50k 8.7%
$50k–$100k 10.1%
$100k–$150k 12.8%
$150k–$200k 58.4%
$200k–$300k 10.1%

Housing overview

MetricValue
Median home value$182,900
Median rent / month$277
Owner occupied89.8%
Renter occupied10.2%
Vacant43.0%
Single-family detached41.9%
Large apartment buildings12.0%
Mobile homes15.1%
Median rooms4.7
Avg household size (owned)2.05

Year built

Era%
2020 or later0.0%
2010–201936.4%
2000–20092.7%
1990–199915.1%
1980–19899.6%
1970–19790.0%
1960–19690.0%
1950–19590.0%
1940–19495.2%
1939 or earlier30.9%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom12.0%
2 bedrooms9.6%
3 bedrooms73.2%
4 bedrooms5.2%
5+ bedrooms0.0%

Vehicles per household

Vehicles% of households
No vehicle9.0%
1 vehicle65.1%
2 vehicles25.9%
3 or more0.0%

Heating fuel

Fuel type%
Utility gas53.0%
Electricity47.0%

Households & families

Household typeCount%
Married-couple family2816.9%
Cohabiting couple00.0%
Male householder, no spouse2313.9%
Female householder, no spouse11569.3%
Households with children under 189557.2%
Households with seniors (65+)3018.1%
Average household size2.28

Marital status

StatusMaleFemale
Never married76.7%5.9%
Married13.2%19.0%
Separated0.0%0.0%
Widowed0.0%0.0%
Divorced10.1%75.2%

Education

Less than 9th grade 5.6%
Some HS, no diploma 5.9%
HS graduate 48.0%
Some college, no degree 24.3%
Associate's degree 6.5%
Bachelor's degree 4.4%
Graduate / professional 5.3%
Metric%
HS diploma or higher88.5%
Bachelor's or higher9.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten00.0%
Elementary school3128.2%
High school7870.9%
College / grad school10.9%

Employment

Industry of employment

Education & healthcare 30.7%
Agriculture & mining 19.6%
Professional & management 17.5%
Transportation & utilities 15.3%
Manufacturing 7.9%
Public administration 7.9%
Wholesale trade 1.1%

Occupation

Category%
Management, business & arts41.3%
Service11.6%
Sales & office1.1%
Natural resources & construction30.7%
Production & transportation15.3%

Employment type

Type%
Private sector92.1%
Government7.9%
Self-employed0.0%
Unpaid family workers0.0%

Commute

Method%
Drive alone37.6%
Carpool21.8%
Public transit0.0%
Walk9.1%
Other means0.0%
Avg commute (minutes)23.4

Poverty

All people 44.1%
Under 18 years 63.3%
18 and over 38.0%
Married-couple families 0.0%
Female-led households 75.7%

Income support

Source% of households
Social Security0.0%
Retirement income13.9%
Supplemental Security9.0%
Cash public assistance0.0%
Food stamps / SNAP77.7%

Health indicators

Condition%
High blood pressure36.2%
High cholesterol28.6%
Heart disease4.9%
Stroke3.3%
Asthma10.7%
Arthritis18.9%
Kidney disease2.7%
Pulmonary disease5.8%
Cancer3.8%
Behavior / access%
Binge drinking18.7%
No physical activity31.4%
Less than 7 hrs sleep40.8%
Fair or poor health19.8%
Poor mental health19.7%
Poor physical health11.0%
No health insurance19.5%
Visited doctor (checkup)78.6%
Visited dentist51.2%
Cholesterol screening85.2%
Teeth loss22.2%

Veterans & disability

VeteransCount%
Civilian veterans82.4%
Disability%
Any disability17.1%
Under 180.0%
18–64 years11.9%
65 and over100.0%

Health insurance coverage

Type%
Private insurance21.9%
Public insurance73.8%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only47197.3%
Spanish6614.0%
Other Indo-European6614.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)44692.1%
Born in same state44692.1%
Born in different state39581.6%
Foreign born00.0%
Naturalized citizen387.9%
Not a US citizen12.6%

Ancestry

AncestryCount%
Arab81.7%

Technology access

Metric% of households
Computer access34.3%
Internet access100.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions
What ZIP codes does Carville, LA have?
Carville, LA has one ZIP code: 70721. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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