70721 ZIP Code — Carville, LA

Iberville County, Louisiana

ZIP code 70721 is located in Carville, Louisiana, within Iberville County. It covers approximately 3.58 square miles and serves a population of 484 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 225.

About ZIP code 70721

The housing stock consists of a higher-than-average concentration of mobile homes. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $182,900. Owner-occupancy is high at 90%, well above the national average.

The gap between median ($2,499) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 44% of residents, above the national average. SNAP benefit usage at 78% of households reflects economic stress in the area.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average. Remote work is prevalent — 32% of workers work from home.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 70721 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, a high rate of remote workers, and elevated reliance on food assistance.

484

population

3.58

sq mi land

Standard

ZIP type

Central (CT)

timezone

70721 ZIP code map

Cities in ZIP code 70721

Below are the cities the US Postal Service accepts for ZIP code 70721. Using any city not on this list may result in mail delivery delays.

City	Status
Carville	Preferred

Nearby ZIP codes

70776 Saint Gabriel (2.6 mi) 70734 Geismar (5.6 mi) 70788 White Castle (7.2 mi) 70780 Sunshine (7.3 mi) 70346 Donaldsonville (8.2 mi) 70810 Baton Rouge (9.8 mi) 70725 Darrow (10 mi) 70737 Gonzales (10.6 mi) 70764 Plaquemine (11.8 mi) 70820 Baton Rouge (12 mi) 70836 Baton Rouge (12.1 mi) 70769 Prairieville (12.1 mi)

Demographics updated 05/2026

Population
Total population	484
Population density	135 / sq mi
State FIPS	22
County FIPS	047

Geography
Land area	3.58 sq mi
Water area	0.00 sq mi
Latitude	30.2139
Longitude	-91.1019
Timezone	Central (CT)
Area code	225

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.7%	49.6%	49.2%
$50k – $100k	14.6%	26.4%	27.7%
$100k – $200k	32.8%	21.1%	18.3%
Over $200k	5.8%	2.9%	4.7%

Demographics & statistics

484

Population

135

People per sq mi

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

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	122	25.2%
18 and over	362	74.8%
65 and over	44	9.1%
Median age	30.2 years

Race & ethnicity

Black or African American 64.5%

White 35.3%

Asian 0.2%

Group	Count	%
Black or African American	312	64.5%
White	171	35.3%
Asian	1	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.7%	49.6%	49.2%
$50k – $100k	14.6%	26.4%	27.7%
$100k – $200k	32.8%	21.1%	18.3%
Over $200k	5.8%	2.9%	4.7%

Under $10k 52.4%

$15k–$25k 9.0%

$25k–$35k 7.8%

$100k–$150k 25.9%

$200k+ 4.8%

Range	% of households
Under $10k	52.4%
$15k–$25k	9.0%
$25k–$35k	7.8%
$100k–$150k	25.9%
$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

Metric	Value
Median home value	$182,900
Median rent / month	$277
Owner occupied	89.8%
Renter occupied	10.2%
Vacant	43.0%
Single-family detached	41.9%
Large apartment buildings	12.0%
Mobile homes	15.1%
Median rooms	4.7
Avg household size (owned)	2.05

Year built

Era	%
2020 or later	0.0%
2010–2019	36.4%
2000–2009	2.7%
1990–1999	15.1%
1980–1989	9.6%
1970–1979	0.0%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	5.2%
1939 or earlier	30.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	12.0%
2 bedrooms	9.6%
3 bedrooms	73.2%
4 bedrooms	5.2%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	9.0%
1 vehicle	65.1%
2 vehicles	25.9%
3 or more	0.0%

Heating fuel

Fuel type	%
Utility gas	53.0%
Electricity	47.0%

Households & families

Household type	Count	%
Married-couple family	28	16.9%
Cohabiting couple	0	0.0%
Male householder, no spouse	23	13.9%
Female householder, no spouse	115	69.3%
Households with children under 18	95	57.2%
Households with seniors (65+)	30	18.1%
Average household size	2.28

Marital status

Status	Male	Female
Never married	76.7%	5.9%
Married	13.2%	19.0%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	10.1%	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 higher	88.5%
Bachelor's or higher	9.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	31	28.2%
High school	78	70.9%
College / grad school	1	0.9%

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 & arts	41.3%
Service	11.6%
Sales & office	1.1%
Natural resources & construction	30.7%
Production & transportation	15.3%

Employment type

Type	%
Private sector	92.1%
Government	7.9%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	37.6%
Carpool	21.8%
Public transit	0.0%
Walk	9.1%
Work from home	31.5%
Other means	0.0%
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 Security	0.0%
Retirement income	13.9%
Supplemental Security	9.0%
Cash public assistance	0.0%
Food stamps / SNAP	77.7%

Health indicators

Condition	%
Obesity	37.8%
High blood pressure	36.2%
High cholesterol	28.6%
Diabetes	11.7%
Heart disease	4.9%
Stroke	3.3%
Asthma	10.7%
Arthritis	18.9%
Kidney disease	2.7%
Pulmonary disease	5.8%
Cancer	3.8%

Behavior / access	%
Smoking	21.1%
Binge drinking	18.7%
No physical activity	31.4%
Less than 7 hrs sleep	40.8%
Depression	22.7%
Fair or poor health	19.8%
Poor mental health	19.7%
Poor physical health	11.0%
No health insurance	19.5%
Visited doctor (checkup)	78.6%
Visited dentist	51.2%
Cholesterol screening	85.2%
Teeth loss	22.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	8	2.4%

Disability	%
Any disability	17.1%
Under 18	0.0%
18–64 years	11.9%
65 and over	100.0%

Health insurance coverage

Type	%
Private insurance	21.9%
Public insurance	73.8%
No insurance	10.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	471	97.3%
Spanish	66	14.0%
Other Indo-European	66	14.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	446	92.1%
Born in same state	446	92.1%
Born in different state	395	81.6%
Foreign born	0	0.0%
Naturalized citizen	38	7.9%
Not a US citizen	1	2.6%

Ancestry

Ancestry	Count	%
Arab	8	1.7%

Technology access

Metric	% of households
Computer access	34.3%
Internet access	100.0%

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

Frequently asked questions about ZIP code 70721

What city is ZIP code 70721 in?

ZIP code 70721 is primarily assigned to Carville, Louisiana.

What county is ZIP code 70721 in?

ZIP code 70721 falls within Iberville County, Louisiana.

What is the poverty rate in ZIP code 70721?

44% of residents in ZIP code 70721 live below the poverty line, above the national average.

Is ZIP code 70721 mostly owner-occupied?

90% of occupied units in ZIP code 70721 are owner-occupied, well above the national average.

How educated is the population of ZIP code 70721?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the median household income in ZIP code 70721?

The median household income in ZIP code 70721 is $2,499, below the national median of ~$75,000.

What timezone is ZIP code 70721 in?

ZIP code 70721 observes the CST timezone.