70643 ZIP Code — Grand Chenier, LA

Cameron County, Louisiana

ZIP code 70643 is located in Grand Chenier, Louisiana, within Cameron County. It covers approximately 261.17 square miles and serves a population of 202 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 337.

About ZIP code 70643

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 2000s, giving the area an established character. Owner-occupancy is high at 77%, well above the national average.

The dominant occupation class is production, transportation, and material moving, with construction as the leading industry. Remote work is prevalent — 67% of workers work from home.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (23%) compared to national benchmarks.

Overall, ZIP code 70643 reflects a community defined by high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

202

population

261.17

sq mi land

Standard

ZIP type

Central (CT)

timezone

70643 ZIP code map

Cities in ZIP code 70643

Below are the cities the US Postal Service accepts for ZIP code 70643. Using any city not on this list may result in mail delivery delays.

City	Status
Grand Chenier	Acceptable

Demographics updated 05/2026

Population
Total population	202
Population density	1 / sq mi
State FIPS	22
County FIPS	023

Geography
Land area	261.17 sq mi
Water area	35.36 sq mi
Latitude	29.7777
Longitude	-92.8437
Timezone	Central (CT)
Area code	337

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	70.8%	47.1%	49.2%
$50k – $100k	29.2%	30.0%	27.7%
$100k – $200k	0.0%	19.4%	18.3%
Over $200k	0.0%	3.4%	4.7%

Demographics & statistics

202

Population

People per sq mi

54.5

Median age

Median household income

$19,920

Per capita income

Median home value

Median monthly rent

76.5%

Home ownership

1.5%

Poverty rate

0.0%

Unemployment

187

Housing units

26.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

15–19

25–34

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	18	8.9%
18 and over	184	91.1%
65 and over	61	30.2%
Median age	54.5 years

Race & ethnicity

White 97%

Two or more races 3%

Group	Count	%
White	196	97%
Two or more races	6	3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	70.8%	47.1%	49.2%
$50k – $100k	29.2%	30.0%	27.7%
$100k – $200k	0.0%	19.4%	18.3%
Over $200k	0.0%	3.4%	4.7%

$15k–$25k 43.1%

$25k–$35k 19.6%

$35k–$50k 4.9%

$50k–$75k 8.8%

$75k–$100k 5.9%

$100k–$150k 17.6%

Range	% of households
$15k–$25k	43.1%
$25k–$35k	19.6%
$35k–$50k	4.9%
$50k–$75k	8.8%
$75k–$100k	5.9%
$100k–$150k	17.6%
Median income	$0

Housing

Home values

Under $50k 57.7%

$150k–$200k 7.7%

$300k–$500k 34.6%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	76.5%
Renter occupied	23.5%
Vacant	51.7%
Single-family detached	25.1%
Large apartment buildings	0.0%
Mobile homes	74.9%
Median rooms	5.1
Avg household size (owned)	1.56

Year built

Era	%
2020 or later	0.0%
2010–2019	24.6%
2000–2009	61.6%
1990–1999	0.0%
1980–1989	0.0%
1970–1979	4.3%
1960–1969	9.5%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	19.0%
2 bedrooms	1.9%
3 bedrooms	73.9%
4 bedrooms	5.2%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	48.0%
2 vehicles	8.8%
3 or more	43.1%

Heating fuel

Fuel type	%
Utility gas	32.4%
Electricity	67.6%

Households & families

Household type	Count	%
Married-couple family	48	47.1%
Cohabiting couple	0	0.0%
Male householder, no spouse	14	13.7%
Female householder, no spouse	40	39.2%
Households with children under 18	18	17.6%
Households with seniors (65+)	53	52.0%
Average household size	1.93

Marital status

Status	Male	Female
Never married	34.5%	2.0%
Married	64.3%	58.0%
Separated	0.0%	0.0%
Widowed	0.0%	40.0%
Divorced	1.2%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 24.4%

HS graduate 36.6%

Some college, no degree 12.2%

Associate's degree 0.0%

Bachelor's degree 24.4%

Graduate / professional 2.4%

Metric	%
HS diploma or higher	75.6%
Bachelor's or higher	26.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	18	100.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Construction 45.1%

Agriculture & mining 39.2%

Education & healthcare 11.8%

Other services 3.9%

Occupation

Category	%
Management, business & arts	15.7%
Service	0.0%
Sales & office	3.9%
Natural resources & construction	39.2%
Production & transportation	41.2%

Employment type

Type	%
Private sector	19.6%
Government	41.2%
Self-employed	39.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	26.7%
Carpool	0.0%
Public transit	0.0%
Walk	6.7%
Work from home	66.7%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 1.5%

Under 18 years 0.0%

18 and over 1.6%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	52.0%
Retirement income	30.4%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	35.9%
High blood pressure	38.8%
High cholesterol	38.5%
Diabetes	12.4%
Heart disease	8.3%
Stroke	3.9%
Asthma	9.2%
Arthritis	29.1%
Kidney disease	3.4%
Pulmonary disease	9.2%
Cancer	7.3%

Behavior / access	%
Smoking	23.0%
Binge drinking	20.1%
No physical activity	30.7%
Less than 7 hrs sleep	34.5%
Depression	26.8%
Fair or poor health	18.8%
Poor mental health	17.5%
Poor physical health	13.3%
No health insurance	13.4%
Visited doctor (checkup)	76.9%
Visited dentist	57.5%
Cholesterol screening	89.9%
Teeth loss	17.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	5	2.7%

Disability	%
Any disability	11.4%
Under 18	0.0%
18–64 years	17.1%
65 and over	3.3%

Health insurance coverage

Type	%
Private insurance	69.8%
Public insurance	33.2%
No insurance	9.9%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	184	91.1%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	202	100.0%
Born in same state	202	100.0%
Born in different state	173	85.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	45	22.3%
German	40	19.8%

Ancestry	Count	%
Italian	4	2%

Technology access

Metric	% of households
Computer access	50.5%
Internet access	60.8%

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

Frequently asked questions about ZIP code 70643

What city is ZIP code 70643 in?

ZIP code 70643 is primarily assigned to Grand Chenier, Louisiana.

What county is ZIP code 70643 in?

ZIP code 70643 falls within Cameron County, Louisiana.

Does ZIP code 70643 have an older population?

30% of residents in ZIP code 70643 are 65 or older, above the national average of ~17%.

Does ZIP code 70643 have a large retiree population?

52% of households in ZIP code 70643 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 70643?

ZIP code 70643 has an estimated population of 202 residents, with a density of 1 people per square mile.

What timezone is ZIP code 70643 in?

ZIP code 70643 observes the CST timezone.