70397 ZIP Code — Theriot, LA

Terrebonne County, Louisiana

ZIP code 70397 is located in Theriot, Louisiana, within Terrebonne County. It covers approximately 70.77 square miles and serves a population of 1,046 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 985.

About ZIP code 70397

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $158,500.

Median household income is $121,667. SNAP benefit usage at 21% of households reflects economic stress in the area. 73% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. An above-average commute of 47 minutes suggests many residents work outside the immediate area.

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 (26%) compared to national benchmarks.

Overall, ZIP code 70397 reflects a community defined by a trades-oriented workforce, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

1,046

population

70.77

sq mi land

Standard

ZIP type

Central (CT)

timezone

70397 ZIP code map

Cities in ZIP code 70397

Below are the cities the US Postal Service accepts for ZIP code 70397. Using any city not on this list may result in mail delivery delays.

City	Status
Theriot	Acceptable

Demographics updated 05/2026

Population
Total population	1,046
Population density	15 / sq mi
State FIPS	22
County FIPS	109

Geography
Land area	70.77 sq mi
Water area	5.89 sq mi
Latitude	29.3575
Longitude	-91.0429
Timezone	Central (CT)
Area code	985

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.1%	46.9%	49.2%
$50k – $100k	6.7%	30.5%	27.7%
$100k – $200k	46.9%	18.9%	18.3%
Over $200k	4.3%	3.8%	4.7%

Demographics & statistics

1,046

Population

People per sq mi

50.8

Median age

$121,667

Median household income

$35,746

Per capita income

$158,500

Median home value

Median monthly rent

100.0%

Home ownership

9.1%

Poverty rate

0.0%

Unemployment

607

Housing units

9.6%

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

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	229	21.9%
18 and over	817	78.1%
65 and over	266	25.4%
Median age	50.8 years

Race & ethnicity

White 70.7%

Two or more races 18%

Hispanic or Latino 10%

American Indian / Alaska Native 1.3%

Group	Count	%
White	822	70.7%
Two or more races	209	18%
Hispanic or Latino	116	10%
American Indian / Alaska Native	15	1.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.1%	46.9%	49.2%
$50k – $100k	6.7%	30.5%	27.7%
$100k – $200k	46.9%	18.9%	18.3%
Over $200k	4.3%	3.8%	4.7%

Under $10k 2.2%

$10k–$15k 2.5%

$15k–$25k 13.0%

$25k–$35k 2.8%

$35k–$50k 9.5%

$50k–$75k 3.2%

$75k–$100k 4.7%

$100k–$150k 44.9%

$150k–$200k 10.1%

$200k+ 7.0%

Range	% of households
Under $10k	2.2%
$10k–$15k	2.5%
$15k–$25k	13.0%
$25k–$35k	2.8%
$35k–$50k	9.5%
$50k–$75k	3.2%
$75k–$100k	4.7%
$100k–$150k	44.9%
$150k–$200k	10.1%
$200k+	7.0%
Median income	$121,667

Housing

Home values

Under $50k 3.8%

$50k–$100k 18.7%

$100k–$150k 15.5%

$150k–$200k 40.2%

$200k–$300k 21.8%

Housing overview

Metric	Value
Median home value	$158,500
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	47.9%
Single-family detached	87.3%
Large apartment buildings	0.0%
Mobile homes	12.7%
Median rooms	5.1
Avg household size (owned)	3.30

Year built

Era	%
2020 or later	0.0%
2010–2019	7.6%
2000–2009	13.3%
1990–1999	13.5%
1980–1989	24.7%
1970–1979	24.9%
1960–1969	3.3%
1950–1959	9.6%
1940–1949	1.6%
1939 or earlier	1.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.9%
2 bedrooms	36.9%
3 bedrooms	49.8%
4 bedrooms	7.1%
5+ bedrooms	1.3%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	19.9%
2 vehicles	50.3%
3 or more	25.9%

Heating fuel

Fuel type	%
Utility gas	15.5%
Electricity	84.5%

Households & families

Household type	Count	%
Married-couple family	208	65.8%
Cohabiting couple	15	4.7%
Male householder, no spouse	8	2.5%
Female householder, no spouse	85	26.9%
Households with children under 18	85	26.9%
Households with seniors (65+)	210	66.5%
Average household size	3.30

Marital status

Status	Male	Female
Never married	16.7%	6.9%
Married	72.1%	47.4%
Separated	0.0%	0.0%
Widowed	4.9%	37.4%
Divorced	6.3%	8.4%

Education

Less than 9th grade 19.3%

Some HS, no diploma 7.1%

HS graduate 44.7%

Some college, no degree 16.0%

Associate's degree 3.3%

Bachelor's degree 0.0%

Graduate / professional 9.6%

Metric	%
HS diploma or higher	73.6%
Bachelor's or higher	9.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	41	23.7%
Kindergarten	19	11.0%
Elementary school	44	25.4%
High school	39	22.5%
College / grad school	30	17.3%

Employment

Industry of employment

Agriculture & mining 27.6%

Arts, food & hospitality 16.8%

Education & healthcare 10.3%

Finance & real estate 10.0%

Retail trade 8.4%

Transportation & utilities 7.3%

Manufacturing 6.5%

Construction 3.8%

Other services 3.5%

Public administration 3.3%

Professional & management 2.4%

Occupation

Category	%
Management, business & arts	54.2%
Service	9.8%
Sales & office	11.1%
Natural resources & construction	3.8%
Production & transportation	21.1%

Employment type

Type	%
Private sector	89.4%
Government	8.1%
Self-employed	2.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	87.0%
Carpool	2.8%
Public transit	0.0%
Walk	0.0%
Work from home	0.3%
Other means	9.9%
Avg commute (minutes)	46.9

Poverty

All people 9.1%

Under 18 years 5.2%

18 and over 10.2%

Married-couple families 3.4%

Female-led households 18.9%

Income support

Source	% of households
Social Security	73.4%
Retirement income	9.8%
Supplemental Security	7.0%
Cash public assistance	7.6%
Food stamps / SNAP	20.6%

Health indicators

Condition	%
Obesity	41.1%
High blood pressure	40.1%
High cholesterol	38.6%
Diabetes	14.0%
Heart disease	7.9%
Stroke	3.8%
Asthma	9.8%
Arthritis	27.4%
Kidney disease	3.2%
Pulmonary disease	9.5%
Cancer	6.2%

Behavior / access	%
Smoking	25.5%
Binge drinking	20.4%
No physical activity	31.8%
Less than 7 hrs sleep	33.8%
Depression	27.6%
Fair or poor health	20.7%
Poor mental health	18.7%
Poor physical health	13.9%
No health insurance	15.3%
Visited doctor (checkup)	78.0%
Visited dentist	57.3%
Cholesterol screening	87.5%
Teeth loss	17.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	40	4.9%

Disability	%
Any disability	13.7%
Under 18	0.0%
18–64 years	8.5%
65 and over	36.1%

Health insurance coverage

Type	%
Private insurance	62.5%
Public insurance	43.4%
No insurance	2.2%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	919	87.9%
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)	1,046	100.0%
Born in same state	1,046	100.0%
Born in different state	987	94.4%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
German	96	9.2%
French	42	4%

Ancestry	Count	%
Arab	33	3.2%
Italian	25	2.4%

Technology access

Metric	% of households
Computer access	30.2%
Internet access	90.5%

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

Frequently asked questions about ZIP code 70397

What city is ZIP code 70397 in?

ZIP code 70397 is primarily assigned to Theriot, Louisiana.

What county is ZIP code 70397 in?

ZIP code 70397 falls within Terrebonne County, Louisiana.

Does ZIP code 70397 have a large retiree population?

73% of households in ZIP code 70397 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 70397 have an older population?

25% of residents in ZIP code 70397 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 70397?

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 70397?

The median household income in ZIP code 70397 is $121,667, above the national median of ~$75,000.

What timezone is ZIP code 70397 in?

ZIP code 70397 observes the CST timezone.