70374 ZIP Code — Lockport, LA

Lafourche County, Louisiana

ZIP code 70374 is located in Lockport, Louisiana, within Lafourche County. It covers approximately 44.14 square miles and serves a population of 6,498 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 985.

About ZIP code 70374

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 $160,600. Owner-occupancy is high at 76%, well above the national average.

Median household income is $58,514. Poverty affects 18% of residents, above the national average. 39% 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 29 minutes is near the national average.

College attainment at 11% 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 70374 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

6,498

population

44.14

sq mi land

Standard

ZIP type

Central (CT)

timezone

70374 ZIP code map

Cities in ZIP code 70374

Below are the cities the US Postal Service accepts for ZIP code 70374. Using any city not on this list may result in mail delivery delays.

City	Status
Lockport	Preferred

Nearby ZIP codes

70373 Larose (3.2 mi) 70345 Cut Off (7.7 mi) 70375 Mathews (9.9 mi) 70343 Bourg (9.9 mi) 70394 Raceland (11.9 mi) 70377 Montegut (12 mi) 70354 Galliano (13.8 mi) 70030 Des Allemands (15.1 mi) 70364 Houma (15.3 mi) 70363 Houma (16.3 mi) 70344 Chauvin (16.8 mi) 70036 Barataria (18.3 mi)

Demographics updated 05/2026

Population
Total population	6,498
Population density	147 / sq mi
State FIPS	22
County FIPS	057

Geography
Land area	44.14 sq mi
Water area	2.45 sq mi
Latitude	29.5591
Longitude	-90.4265
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	47.9%	49.2%	49.2%
$50k – $100k	35.9%	28.6%	27.7%
$100k – $200k	13.8%	17.9%	18.3%
Over $200k	2.4%	4.3%	4.7%

Demographics & statistics

6,498

Population

147

People per sq mi

41.2

Median age

$58,514

Median household income

$28,163

Per capita income

$160,600

Median home value

$881

Median monthly rent

76.1%

Home ownership

17.6%

Poverty rate

5.5%

Unemployment

2,203

Housing units

10.5%

Bachelor's or higher

Age distribution

Male Female

155

Under 5

162

173

5–9

182

279

10–14

293

166

15–19

174

168

20–24

177

399

25–34

419

369

35–44

387

440

45–54

462

212

55–59

223

178

60–64

186

374

65–74

392

201

75–84

211

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,455	22.4%
18 and over	5,043	77.6%
65 and over	1,294	19.9%
Median age	41.2 years

Race & ethnicity

White 85.3%

Two or more races 6.2%

Hispanic or Latino 3.8%

Black or African American 2.3%

American Indian / Alaska Native 1%

Asian 0.7%

Other race 0.6%

Group	Count	%
White	5,759	85.3%
Two or more races	422	6.2%
Hispanic or Latino	257	3.8%
Black or African American	157	2.3%
American Indian / Alaska Native	70	1%
Asian	49	0.7%
Other race	41	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.9%	49.2%	49.2%
$50k – $100k	35.9%	28.6%	27.7%
$100k – $200k	13.8%	17.9%	18.3%
Over $200k	2.4%	4.3%	4.7%

Under $10k 7.5%

$10k–$15k 3.2%

$15k–$25k 12.3%

$25k–$35k 10.0%

$35k–$50k 13.4%

$50k–$75k 15.6%

$75k–$100k 10.7%

$100k–$150k 18.0%

$150k–$200k 5.8%

$200k+ 3.3%

Range	% of households
Under $10k	7.5%
$10k–$15k	3.2%
$15k–$25k	12.3%
$25k–$35k	10.0%
$35k–$50k	13.4%
$50k–$75k	15.6%
$75k–$100k	10.7%
$100k–$150k	18.0%
$150k–$200k	5.8%
$200k+	3.3%
Median income	$58,514

Housing

Home values

Under $50k 8.7%

$50k–$100k 13.9%

$100k–$150k 23.1%

$150k–$200k 19.7%

$200k–$300k 20.0%

$300k–$500k 9.5%

$500k–$1M 3.2%

$1M+ 1.9%

Housing overview

Metric	Value
Median home value	$160,600
Median rent / month	$881
Owner occupied	76.1%
Renter occupied	23.9%
Vacant	10.1%
Single-family detached	76.6%
Large apartment buildings	0.1%
Mobile homes	14.8%
Median rooms	5.8
Avg household size (owned)	2.48

Year built

Era	%
2020 or later	0.4%
2010–2019	8.0%
2000–2009	7.7%
1990–1999	12.5%
1980–1989	11.4%
1970–1979	17.4%
1960–1969	18.2%
1950–1959	10.3%
1940–1949	7.6%
1939 or earlier	6.6%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	5.6%
2 bedrooms	27.4%
3 bedrooms	52.9%
4 bedrooms	11.2%
5+ bedrooms	1.7%

Vehicles per household

Vehicles	% of households
No vehicle	4.8%
1 vehicle	38.0%
2 vehicles	39.3%
3 or more	17.8%

Heating fuel

Fuel type	%
Utility gas	40.9%
Electricity	57.9%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	1,126	44.6%
Cohabiting couple	370	14.7%
Male householder, no spouse	344	13.6%
Female householder, no spouse	682	27.0%
Households with children under 18	911	36.1%
Households with seniors (65+)	811	32.2%
Average household size	2.56

Marital status

Status	Male	Female
Never married	34.1%	24.7%
Married	49.0%	43.0%
Separated	3.9%	6.9%
Widowed	4.1%	12.9%
Divorced	8.9%	12.5%

Education

Less than 9th grade 12.4%

Some HS, no diploma 12.1%

HS graduate 42.3%

Some college, no degree 15.8%

Associate's degree 6.9%

Bachelor's degree 7.8%

Graduate / professional 2.7%

Metric	%
HS diploma or higher	75.5%
Bachelor's or higher	10.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	52	4.2%
Kindergarten	54	4.4%
Elementary school	723	58.7%
High school	251	20.4%
College / grad school	151	12.3%

Employment

Industry of employment

Education & healthcare 23.0%

Construction 13.5%

Manufacturing 12.4%

Agriculture & mining 10.7%

Professional & management 9.2%

Retail trade 8.7%

Transportation & utilities 6.5%

Other services 5.2%

Public administration 4.3%

Finance & real estate 3.1%

Arts, food & hospitality 2.7%

Wholesale trade 0.8%

Occupation

Category	%
Management, business & arts	30.2%
Service	10.0%
Sales & office	17.9%
Natural resources & construction	21.2%
Production & transportation	20.7%

Employment type

Type	%
Private sector	83.5%
Government	12.4%
Self-employed	3.7%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	83.7%
Carpool	13.8%
Public transit	0.0%
Walk	0.0%
Work from home	1.7%
Other means	0.8%
Avg commute (minutes)	29.3

Poverty

All people 17.6%

Under 18 years 24.8%

18 and over 15.5%

Married-couple families 2.4%

Female-led households 37.8%

Income support

Source	% of households
Social Security	38.7%
Retirement income	17.8%
Supplemental Security	8.5%
Cash public assistance	1.1%
Food stamps / SNAP	15.0%

Health indicators

Condition	%
Obesity	37.7%
High blood pressure	37.2%
High cholesterol	35.7%
Diabetes	12.3%
Heart disease	7.6%
Stroke	3.8%
Asthma	9.6%
Arthritis	26.5%
Kidney disease	3.2%
Pulmonary disease	9.7%
Cancer	6.2%

Behavior / access	%
Smoking	25.8%
Binge drinking	22.1%
No physical activity	34.0%
Less than 7 hrs sleep	36.0%
Depression	27.9%
Fair or poor health	21.6%
Poor mental health	19.5%
Poor physical health	14.2%
No health insurance	17.0%
Visited doctor (checkup)	76.5%
Visited dentist	53.2%
Cholesterol screening	86.5%
Teeth loss	21.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	235	4.7%

Disability	%
Any disability	21.3%
Under 18	12.9%
18–64 years	15.6%
65 and over	47.8%

Health insurance coverage

Type	%
Private insurance	59.8%
Public insurance	50.2%
No insurance	5.4%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,181	95.1%
Spanish	183	3.0%
Other Indo-European	156	2.5%
Asian & Pacific Islander	14	0.2%
Other languages	13	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,201	95.4%
Born in same state	6,093	93.8%
Born in different state	5,766	88.7%
Foreign born	108	1.7%
Naturalized citizen	297	4.6%
Not a US citizen	66	22.2%

Ancestry

Ancestry	Count	%
Arab	927	14.3%
German	534	8.2%
French	382	5.9%

Ancestry	Count	%
Italian	312	4.8%
Polish	26	0.4%
English	10	0.2%

Technology access

Metric	% of households
Computer access	38.8%
Internet access	88.1%

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

Frequently asked questions about ZIP code 70374

What city is ZIP code 70374 in?

ZIP code 70374 is primarily assigned to Lockport, Louisiana.

What county is ZIP code 70374 in?

ZIP code 70374 falls within Lafourche County, Louisiana.

How educated is the population of ZIP code 70374?

11% 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 poverty rate in ZIP code 70374?

18% of residents in ZIP code 70374 live below the poverty line, above the national average.

Does ZIP code 70374 have a large retiree population?

39% of households in ZIP code 70374 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 70374?

The median home value in ZIP code 70374 is $160,600.

What timezone is ZIP code 70374 in?

ZIP code 70374 observes the CST timezone.