70345 ZIP Code — Cut Off, LA

Lafourche County, Louisiana

ZIP code 70345 is located in Cut Off, Louisiana, within Lafourche County. It covers approximately 128.77 square miles and serves a population of 8,692 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 985.

About ZIP code 70345

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $175,800. Owner-occupancy is high at 83%, well above the national average.

Median household income is $60,212. Poverty affects 18% of residents, above the national average. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (24%) compared to national benchmarks.

Overall, ZIP code 70345 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

8,692

population

128.77

sq mi land

Standard

ZIP type

Central (CT)

timezone

70345 ZIP code map

Cities in ZIP code 70345

Below are the cities the US Postal Service accepts for ZIP code 70345. Using any city not on this list may result in mail delivery delays.

City	Status
Cut Off	Preferred

Nearby ZIP codes

70374 Lockport (7.7 mi) 70373 Larose (9.6 mi) 70354 Galliano (9.8 mi) 70036 Barataria (11.7 mi) 70067 Lafitte (14.1 mi) 70377 Montegut (15.8 mi) 70375 Mathews (16.1 mi) 70030 Des Allemands (17.2 mi) 70343 Bourg (17.5 mi) 70394 Raceland (17.9 mi) 70357 Golden Meadow (19.3 mi)

Demographics updated 05/2026

Population
Total population	8,692
Population density	68 / sq mi
State FIPS	22
County FIPS	057

Geography
Land area	128.77 sq mi
Water area	28.08 sq mi
Latitude	29.5426
Longitude	-90.2990
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	47.5%	49.2%	49.2%
$50k – $100k	30.9%	28.6%	27.7%
$100k – $200k	18.6%	17.9%	18.3%
Over $200k	2.9%	4.3%	4.7%

Demographics & statistics

8,692

Population

People per sq mi

41.2

Median age

$60,212

Median household income

$30,802

Per capita income

$175,800

Median home value

$700

Median monthly rent

82.5%

Home ownership

17.8%

Poverty rate

3.4%

Unemployment

3,122

Housing units

14.8%

Bachelor's or higher

Age distribution

Male Female

371

Under 5

415

288

5–9

322

225

10–14

252

159

15–19

177

111

20–24

125

524

25–34

585

552

35–44

616

518

45–54

579

288

55–59

321

298

60–64

334

455

65–74

509

254

75–84

284

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,090	24.0%
18 and over	6,602	76.0%
65 and over	1,632	18.8%
Median age	41.2 years

Race & ethnicity

White 78%

Two or more races 7.4%

Hispanic or Latino 5.2%

American Indian / Alaska Native 5.2%

Other race 2.5%

Black or African American 1.1%

Asian 0.5%

Group	Count	%
White	7,159	78%
Two or more races	680	7.4%
Hispanic or Latino	481	5.2%
American Indian / Alaska Native	473	5.2%
Other race	232	2.5%
Black or African American	99	1.1%
Asian	49	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.5%	49.2%	49.2%
$50k – $100k	30.9%	28.6%	27.7%
$100k – $200k	18.6%	17.9%	18.3%
Over $200k	2.9%	4.3%	4.7%

Under $10k 11.9%

$10k–$15k 5.2%

$15k–$25k 11.2%

$25k–$35k 6.7%

$35k–$50k 8.0%

$50k–$75k 12.0%

$75k–$100k 11.1%

$100k–$150k 21.4%

$150k–$200k 7.7%

$200k+ 4.8%

Range	% of households
Under $10k	11.9%
$10k–$15k	5.2%
$15k–$25k	11.2%
$25k–$35k	6.7%
$35k–$50k	8.0%
$50k–$75k	12.0%
$75k–$100k	11.1%
$100k–$150k	21.4%
$150k–$200k	7.7%
$200k+	4.8%
Median income	$60,212

Housing

Home values

Under $50k 8.4%

$50k–$100k 14.9%

$100k–$150k 18.7%

$150k–$200k 15.8%

$200k–$300k 31.7%

$300k–$500k 9.6%

$500k–$1M 0.9%

Housing overview

Metric	Value
Median home value	$175,800
Median rent / month	$700
Owner occupied	82.5%
Renter occupied	17.5%
Vacant	7.4%
Single-family detached	76.6%
Large apartment buildings	0.0%
Mobile homes	17.3%
Median rooms	5.8
Avg household size (owned)	2.53

Year built

Era	%
2020 or later	0.3%
2010–2019	7.0%
2000–2009	14.1%
1990–1999	18.4%
1980–1989	11.3%
1970–1979	15.4%
1960–1969	19.8%
1950–1959	9.1%
1940–1949	2.3%
1939 or earlier	2.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.9%
1 bedroom	7.7%
2 bedrooms	22.3%
3 bedrooms	58.5%
4 bedrooms	8.7%
5+ bedrooms	0.9%

Vehicles per household

Vehicles	% of households
No vehicle	8.9%
1 vehicle	26.8%
2 vehicles	49.9%
3 or more	14.4%

Heating fuel

Fuel type	%
Utility gas	33.6%
Electricity	64.6%
Propane / LP gas	0.7%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	1,744	50.5%
Cohabiting couple	429	12.4%
Male householder, no spouse	284	8.2%
Female householder, no spouse	996	28.8%
Households with children under 18	1,134	32.8%
Households with seniors (65+)	1,179	34.1%
Average household size	2.51

Marital status

Status	Male	Female
Never married	23.0%	22.5%
Married	66.5%	47.2%
Separated	0.5%	5.0%
Widowed	1.5%	14.2%
Divorced	8.5%	11.2%

Education

Less than 9th grade 11.1%

Some HS, no diploma 9.9%

HS graduate 39.1%

Some college, no degree 20.2%

Associate's degree 4.9%

Bachelor's degree 9.0%

Graduate / professional 5.8%

Metric	%
HS diploma or higher	79.0%
Bachelor's or higher	14.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	281	16.7%
Kindergarten	63	3.7%
Elementary school	860	51.0%
High school	289	17.1%
College / grad school	193	11.4%

Employment

Industry of employment

Education & healthcare 29.0%

Transportation & utilities 11.9%

Agriculture & mining 9.8%

Retail trade 9.5%

Professional & management 8.5%

Arts, food & hospitality 7.6%

Public administration 7.2%

Manufacturing 5.1%

Construction 4.4%

Other services 4.2%

Finance & real estate 2.5%

Wholesale trade 0.3%

Information 0.2%

Occupation

Category	%
Management, business & arts	28.6%
Service	22.1%
Sales & office	22.0%
Natural resources & construction	5.9%
Production & transportation	21.5%

Employment type

Type	%
Private sector	78.2%
Government	17.7%
Self-employed	4.1%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	86.6%
Carpool	9.2%
Public transit	0.0%
Walk	1.0%
Work from home	1.1%
Other means	2.2%
Avg commute (minutes)	32.3

Poverty

All people 17.8%

Under 18 years 16.4%

18 and over 18.2%

Married-couple families 9.5%

Female-led households 25.0%

Income support

Source	% of households
Social Security	34.3%
Retirement income	14.9%
Supplemental Security	8.6%
Cash public assistance	0.3%
Food stamps / SNAP	15.8%

Health indicators

Condition	%
Obesity	37.1%
High blood pressure	36.8%
High cholesterol	35.8%
Diabetes	12.2%
Heart disease	7.5%
Stroke	3.6%
Asthma	9.2%
Arthritis	26.1%
Kidney disease	3.2%
Pulmonary disease	9.1%
Cancer	6.4%

Behavior / access	%
Smoking	24.4%
Binge drinking	21.9%
No physical activity	33.2%
Less than 7 hrs sleep	35.5%
Depression	26.8%
Fair or poor health	20.5%
Poor mental health	18.6%
Poor physical health	13.6%
No health insurance	16.9%
Visited doctor (checkup)	76.7%
Visited dentist	55.2%
Cholesterol screening	87.5%
Teeth loss	19.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	272	4.1%

Disability	%
Any disability	17.4%
Under 18	0.1%
18–64 years	12.2%
65 and over	55.6%

Health insurance coverage

Type	%
Private insurance	59.3%
Public insurance	44.1%
No insurance	7.3%
Uninsured under 19	2.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,906	91.0%
Spanish	395	5.0%
Other Indo-European	217	2.7%
Asian & Pacific Islander	161	2.0%
Other languages	17	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,392	96.5%
Born in same state	8,255	95.0%
Born in different state	7,625	87.7%
Foreign born	137	1.6%
Naturalized citizen	300	3.5%
Not a US citizen	73	24.3%

Ancestry

Ancestry	Count	%
German	1,195	13.7%
Arab	664	7.6%
French	368	4.2%

Ancestry	Count	%
Italian	148	1.7%
English	5	0.1%
Polish	3	0%

Technology access

Metric	% of households
Computer access	39.7%
Internet access	89.4%

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

Frequently asked questions about ZIP code 70345

What city is ZIP code 70345 in?

ZIP code 70345 is primarily assigned to Cut Off, Louisiana.

What county is ZIP code 70345 in?

ZIP code 70345 falls within Lafourche County, Louisiana.

What is the poverty rate in ZIP code 70345?

18% of residents in ZIP code 70345 live below the poverty line, above the national average.

How educated is the population of ZIP code 70345?

15% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 70345 mostly owner-occupied?

83% of occupied units in ZIP code 70345 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 70345?

The median home value in ZIP code 70345 is $175,800.

What timezone is ZIP code 70345 in?

ZIP code 70345 observes the CST timezone.