70665 ZIP Code — Sulphur, LA

Calcasieu County, Louisiana

ZIP code 70665 is located in Sulphur, Louisiana, within Calcasieu County. It covers approximately 153.04 square miles and serves a population of 12,405 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 337.

About ZIP code 70665

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 $208,700. Owner-occupancy is high at 85%, well above the national average.

Median household income is $82,776. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 22 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

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

Overall, ZIP code 70665 reflects a community defined by high homeownership and a significant Social Security-dependent population.

12,405

population

153.04

sq mi land

Standard

ZIP type

Central (CT)

timezone

70665 ZIP code map

Cities in ZIP code 70665

Below are the cities the US Postal Service accepts for ZIP code 70665. Using any city not on this list may result in mail delivery delays.

City	Status
Sulphur	Preferred

Nearby ZIP codes

70605 Lake Charles (9.7 mi) 70668 Vinton (10.1 mi) 70663 Sulphur (11.1 mi) 70645 Hackberry (11.6 mi) 70669 Westlake (12.7 mi) 70609 Lake Charles (13.9 mi) 70601 Lake Charles (14.8 mi) 70629 Lake Charles (14.9 mi) 70607 Lake Charles (15.2 mi) 70631 Cameron (18.7 mi) 70661 Starks (19.6 mi)

Demographics updated 05/2026

Population
Total population	12,405
Population density	81 / sq mi
State FIPS	22
County FIPS	019

Geography
Land area	153.04 sq mi
Water area	5.53 sq mi
Latitude	30.1334
Longitude	-93.4423
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	38.8%	47.1%	49.2%
$50k – $100k	23.4%	29.1%	27.7%
$100k – $200k	29.7%	19.2%	18.3%
Over $200k	8.1%	4.7%	4.7%

Demographics & statistics

12,405

Population

People per sq mi

35.7

Median age

$82,776

Median household income

$38,273

Per capita income

$208,700

Median home value

$1,349

Median monthly rent

85.2%

Home ownership

12.2%

Poverty rate

2.5%

Unemployment

4,757

Housing units

22.6%

Bachelor's or higher

Age distribution

Male Female

473

Under 5

511

564

5–9

609

477

10–14

514

292

15–19

316

286

20–24

308

790

25–34

852

800

35–44

863

782

45–54

843

363

55–59

392

257

60–64

278

565

65–74

610

232

75–84

250

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,646	29.4%
18 and over	8,759	70.6%
65 and over	1,835	14.8%
Median age	35.7 years

Race & ethnicity

White 89.4%

Two or more races 4%

Hispanic or Latino 3.4%

Other race 1.8%

Asian 0.7%

Black or African American 0.6%

American Indian / Alaska Native 0.1%

Group	Count	%
White	11,470	89.4%
Two or more races	516	4%
Hispanic or Latino	430	3.4%
Other race	229	1.8%
Asian	94	0.7%
Black or African American	78	0.6%
American Indian / Alaska Native	18	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	38.8%	47.1%	49.2%
$50k – $100k	23.4%	29.1%	27.7%
$100k – $200k	29.7%	19.2%	18.3%
Over $200k	8.1%	4.7%	4.7%

Under $10k 9.5%

$10k–$15k 1.4%

$15k–$25k 6.1%

$25k–$35k 6.5%

$35k–$50k 8.2%

$50k–$75k 9.9%

$75k–$100k 13.3%

$100k–$150k 20.5%

$150k–$200k 14.3%

$200k+ 10.1%

Range	% of households
Under $10k	9.5%
$10k–$15k	1.4%
$15k–$25k	6.1%
$25k–$35k	6.5%
$35k–$50k	8.2%
$50k–$75k	9.9%
$75k–$100k	13.3%
$100k–$150k	20.5%
$150k–$200k	14.3%
$200k+	10.1%
Median income	$82,776

Housing

Home values

Under $50k 14.1%

$50k–$100k 8.1%

$100k–$150k 12.6%

$150k–$200k 12.4%

$200k–$300k 27.1%

$300k–$500k 21.7%

$500k–$1M 3.8%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$208,700
Median rent / month	$1,349
Owner occupied	85.2%
Renter occupied	14.8%
Vacant	17.6%
Single-family detached	58.6%
Large apartment buildings	0.3%
Mobile homes	31.9%
Median rooms	5.8
Avg household size (owned)	2.87

Year built

Era	%
2020 or later	1.5%
2010–2019	27.1%
2000–2009	23.2%
1990–1999	13.7%
1980–1989	7.6%
1970–1979	12.2%
1960–1969	4.7%
1950–1959	7.2%
1940–1949	0.2%
1939 or earlier	2.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	2.8%
2 bedrooms	22.1%
3 bedrooms	53.5%
4 bedrooms	18.4%
5+ bedrooms	3.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.7%
1 vehicle	30.2%
2 vehicles	43.8%
3 or more	23.3%

Heating fuel

Fuel type	%
Utility gas	17.1%
Electricity	80.8%
Propane / LP gas	1.3%
Wood	0.5%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	2,578	57.8%
Cohabiting couple	28	0.6%
Male householder, no spouse	710	15.9%
Female householder, no spouse	1,147	25.7%
Households with children under 18	1,607	36.0%
Households with seniors (65+)	1,361	30.5%
Average household size	2.78

Marital status

Status	Male	Female
Never married	25.6%	18.9%
Married	56.7%	57.4%
Separated	0.1%	0.9%
Widowed	5.9%	10.6%
Divorced	11.6%	12.2%

Education

Less than 9th grade 3.7%

Some HS, no diploma 8.1%

HS graduate 35.7%

Some college, no degree 21.2%

Associate's degree 8.7%

Bachelor's degree 15.2%

Graduate / professional 7.4%

Metric	%
HS diploma or higher	88.2%
Bachelor's or higher	22.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	142	4.9%
Kindergarten	202	6.9%
Elementary school	1,633	56.1%
High school	625	21.5%
College / grad school	307	10.6%

Employment

Industry of employment

Manufacturing 19.3%

Education & healthcare 18.3%

Retail trade 14.6%

Construction 10.6%

Professional & management 7.2%

Public administration 5.9%

Arts, food & hospitality 5.2%

Agriculture & mining 5.0%

Transportation & utilities 4.5%

Finance & real estate 3.8%

Other services 3.5%

Information 1.7%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	36.8%
Service	15.4%
Sales & office	19.7%
Natural resources & construction	17.3%
Production & transportation	10.7%

Employment type

Type	%
Private sector	85.3%
Government	11.1%
Self-employed	3.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.0%
Carpool	7.0%
Public transit	0.6%
Walk	2.0%
Work from home	3.2%
Other means	1.3%
Avg commute (minutes)	22.4

Poverty

All people 12.2%

Under 18 years 14.6%

18 and over 11.2%

Married-couple families 5.0%

Female-led households 30.3%

Income support

Source	% of households
Social Security	30.5%
Retirement income	20.3%
Supplemental Security	6.3%
Cash public assistance	3.0%
Food stamps / SNAP	6.7%

Health indicators

Condition	%
Obesity	34.4%
High blood pressure	34.9%
High cholesterol	33.2%
Diabetes	10.4%
Heart disease	6.0%
Stroke	2.8%
Asthma	9.0%
Arthritis	23.6%
Kidney disease	2.6%
Pulmonary disease	6.9%
Cancer	6.0%

Behavior / access	%
Smoking	21.3%
Binge drinking	22.5%
No physical activity	27.1%
Less than 7 hrs sleep	37.0%
Depression	26.5%
Fair or poor health	14.9%
Poor mental health	18.6%
Poor physical health	10.9%
No health insurance	12.1%
Visited doctor (checkup)	75.1%
Visited dentist	57.9%
Cholesterol screening	89.0%
Teeth loss	14.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	756	8.6%

Disability	%
Any disability	14.0%
Under 18	4.1%
18–64 years	14.6%
65 and over	31.1%

Health insurance coverage

Type	%
Private insurance	65.4%
Public insurance	37.0%
No insurance	8.0%
Uninsured under 19	4.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,421	92.1%
Spanish	147	1.3%
Other Indo-European	138	1.2%
Asian & Pacific Islander	9	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,062	97.2%
Born in same state	12,043	97.1%
Born in different state	9,824	79.2%
Foreign born	19	0.2%
Naturalized citizen	343	2.8%
Not a US citizen	157	45.8%

Ancestry

Ancestry	Count	%
French	1,030	8.3%
German	886	7.1%
Italian	802	6.5%
Arab	678	5.5%

Ancestry	Count	%
English	50	0.4%
Polish	35	0.3%
Dutch	9	0.1%

Technology access

Metric	% of households
Computer access	36.0%
Internet access	93.4%

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

Frequently asked questions about ZIP code 70665

What city is ZIP code 70665 in?

ZIP code 70665 is primarily assigned to Sulphur, Louisiana.

What county is ZIP code 70665 in?

ZIP code 70665 falls within Calcasieu County, Louisiana.

Is ZIP code 70665 mostly owner-occupied?

85% of occupied units in ZIP code 70665 are owner-occupied, well above the national average.

What is the population of ZIP code 70665?

ZIP code 70665 has an estimated population of 12,405 residents, with a density of 81 people per square mile.

What is the typical home value in ZIP code 70665?

The median home value in ZIP code 70665 is $208,700.

What is the median household income in ZIP code 70665?

The median household income in ZIP code 70665 is $82,776, above the national median of ~$75,000.

What timezone is ZIP code 70665 in?

ZIP code 70665 observes the CST timezone.