Sulphur ZIP Codes — Calcasieu County, LA

There are 3 unique ZIP codes in Sulphur, Louisiana. Area code: 337.

ZIP codes

250.82

sq mi land

7.04

sq mi water

337

area code

Sulphur, LA ZIP code map

About Sulphur, LA

Sulphur is a charming city located in Louisiana, known for its close-knit community and vibrant culture. Nestled in Calcasieu County, the city has a rich history and offers a variety of amenities to its residents and visitors. With a unique blend of Southern hospitality and modern conveniences, Sulphur is a great place to live and explore.

Location & geography

Sulphur, LA is situated in the southwestern part of Louisiana, making it a strategic location for travelers and businesses alike. The city is approximately 15 miles southwest of Lake Charles, 90 miles from Lafayette, and about 120 miles from Baton Rouge, which are all significant urban centers in the region. Covering a total area of 250.82 square miles, including 7.04 square miles of water, Sulphur's landscape is characterized by both land and water features that enhance its natural beauty.

Community & economy

The character of Sulphur is defined by its strong sense of community, where residents take pride in their neighborhoods and local traditions. The economy is diverse, with key industries including petrochemicals, healthcare, and retail, providing ample job opportunities for locals. Daily life in Sulphur is enriched by numerous annual events, cultural festivals, and recreational activities, making it a vibrant place to call home.

Transportation

Transportation in Sulphur is conveniently facilitated by major highways such as Interstate 10 and U.S. Highway 90, allowing for easy access to surrounding areas. The nearest airports include the Lake Charles Regional Airport, located approximately 10 miles away, which offers regional flights to various destinations. Public transit options are limited, but the city ensures that essential routes connect residents to key services.

History

Sulphur was founded in the late 19th century, originally growing as a center for agriculture and later transitioning into a hub for the petrochemical industry. The town was notably impacted by the discovery of sulfur deposits, which contributed significantly to its growth during the 20th century. Over the years, Sulphur has hosted various annual events that celebrate its cultural heritage and community spirit.

Did you know?

A little-known fact about Sulphur is that it was named for the sulfur springs that were once present in the area, which attracted visitors seeking therapeutic benefits. Today, the city is also recognized for its beautiful parks and recreational opportunities, making it a hidden gem in Louisiana.

ZIP codes for Sulphur, LA (3)

ZIP code	City	County	Map
70663	Sulphur	Calcasieu	View map
70664	Sulphur	Calcasieu	View map
70665	Sulphur	Calcasieu	View map

Demographics & statistics

42,704

Population

36.7

Median age

$63,974

Median household income

$30,533

Per capita income

$187,650

Median home value

$1,108

Median monthly rent

81.4%

Home ownership

14.1%

Poverty rate

3.8%

Unemployment

15,088

Housing units

19.6%

Bachelor's or higher

Age distribution

Male Female

1,533

Under 5

1,669

1,595

5–9

1,738

1,594

10–14

1,737

1,337

15–19

1,456

1,070

20–24

1,165

2,738

25–34

2,982

2,547

35–44

2,774

2,272

45–54

2,475

1,293

55–59

1,409

1,327

60–64

1,446

2,059

65–74

2,243

765

75–84

834

309

85+

337

← Male

Female →

Age summary

Group	Count	%
Under 18	11,944	28.4%
18 and over	30,760	71.6%
65 and over	6,547	15.2%
Median age	36.7 years

Race & ethnicity

White 84.2%

Black or African American 6.1%

Hispanic or Latino 3.5%

Two or more races 3.4%

Other race 2.1%

Asian 0.5%

American Indian / Alaska Native 0.3%

Group	Count	%
White	37,255	84.2%
Black or African American	2,680	6.1%
Hispanic or Latino	1,538	3.5%
Two or more races	1,502	3.4%
Other race	916	2.1%
Asian	226	0.5%
American Indian / Alaska Native	121	0.3%

Household income

Under $10k 8.5%

$10k–$15k 2.5%

$15k–$25k 7.8%

$25k–$35k 7.5%

$35k–$50k 12.0%

$50k–$75k 14.0%

$75k–$100k 12.5%

$100k–$150k 17.7%

$150k–$200k 10.5%

$200k+ 7.1%

Range	% of households
Under $10k	8.5%
$10k–$15k	2.5%
$15k–$25k	7.8%
$25k–$35k	7.5%
$35k–$50k	12.0%
$50k–$75k	14.0%
$75k–$100k	12.5%
$100k–$150k	17.7%
$150k–$200k	10.5%
$200k+	7.1%
Median income	$63,974

Housing

Home values

Under $50k 11.4%

$50k–$100k 13.2%

$100k–$150k 13.9%

$150k–$200k 16.6%

$200k–$300k 25.9%

$300k–$500k 15.8%

$500k–$1M 3.2%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$187,650
Median rent / month	$1,108
Owner occupied	81.4%
Renter occupied	18.6%
Vacant	16.7%
Single-family detached	62.4%
Large apartment buildings	1.0%
Mobile homes	26.7%
Median rooms	5.6
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	1.8%
2010–2019	18.8%
2000–2009	16.9%
1990–1999	14.0%
1980–1989	9.9%
1970–1979	14.2%
1960–1969	10.7%
1950–1959	9.9%
1940–1949	1.6%
1939 or earlier	2.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	3.6%
2 bedrooms	22.5%
3 bedrooms	54.5%
4 bedrooms	15.6%
5+ bedrooms	3.3%

Vehicles per household

Vehicles	% of households
No vehicle	4.0%
1 vehicle	34.2%
2 vehicles	39.8%
3 or more	22.1%

Heating fuel

Fuel type	%
Utility gas	23.7%
Electricity	74.3%
Propane / LP gas	1.3%
Wood	0.3%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	7,816	53.4%
Cohabiting couple	683	3.4%
Male householder, no spouse	2,719	17.3%
Female householder, no spouse	3,966	26.0%
Households with children under 18	5,231	34.9%
Households with seniors (65+)	4,705	30.9%
Average household size	2.80

Marital status

Status	Male	Female
Never married	28.5%	24.3%
Married	53.7%	51.1%
Separated	0.5%	0.8%
Widowed	5.2%	9.9%
Divorced	12.2%	14.1%

Education

Less than 9th grade 3.1%

Some HS, no diploma 8.8%

HS graduate 37.7%

Some college, no degree 21.6%

Associate's degree 9.5%

Bachelor's degree 13.7%

Graduate / professional 5.9%

Metric	%
HS diploma or higher	88.2%
Bachelor's or higher	19.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	736	6.3%
Kindergarten	784	7.2%
Elementary school	5,072	50.2%
High school	2,462	22.6%
College / grad school	1,614	13.7%

Employment

Industry of employment

Education & healthcare 18.7%

Manufacturing 15.3%

Retail trade 12.9%

Construction 12.4%

Arts, food & hospitality 8.6%

Professional & management 7.3%

Public administration 6.6%

Transportation & utilities 4.6%

Other services 4.0%

Finance & real estate 3.5%

Agriculture & mining 3.1%

Information 2.0%

Wholesale trade 1.3%

Occupation

Category	%
Management, business & arts	33.0%
Service	16.9%
Sales & office	21.5%
Natural resources & construction	17.1%
Production & transportation	11.6%

Employment type

Type	%
Private sector	83.8%
Government	12.9%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.2%
Carpool	7.7%
Public transit	0.3%
Walk	2.1%
Other means	0.8%
Avg commute (minutes)	20.8

Poverty

All people 14.1%

Under 18 years 18.4%

18 and over 12.4%

Married-couple families 6.4%

Female-led households 29.6%

Income support

Source	% of households
Social Security	32.8%
Retirement income	19.5%
Supplemental Security	5.6%
Cash public assistance	2.1%
Food stamps / SNAP	10.0%

Health indicators

Condition	%
High blood pressure	36.2%
High cholesterol	33.5%
Heart disease	6.5%
Stroke	3.1%
Asthma	9.2%
Arthritis	24.7%
Kidney disease	2.8%
Pulmonary disease	7.5%
Cancer	6.3%

Behavior / access	%
Binge drinking	21.9%
No physical activity	28.7%
Less than 7 hrs sleep	37.4%
Fair or poor health	16.2%
Poor mental health	19.0%
Poor physical health	11.6%
No health insurance	13.1%
Visited doctor (checkup)	75.4%
Visited dentist	56.2%
Cholesterol screening	88.7%
Teeth loss	15.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,621	8.6%

Disability	%
Any disability	13.7%
Under 18	4.6%
18–64 years	13.2%
65 and over	32.8%

Health insurance coverage

Type	%
Private insurance	62.1%
Public insurance	41.0%
Uninsured under 19	3.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	39,502	92.4%
Spanish	746	1.7%
Other Indo-European	604	1.5%
Asian & Pacific Islander	94	0.2%
Other languages	8	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	41,592	97.4%
Born in same state	41,399	97.0%
Born in different state	34,258	79.9%
Foreign born	193	0.4%
Naturalized citizen	1,112	2.7%
Not a US citizen	510	45.9%

Ancestry

Ancestry	Count	%
German	4,212	9.9%
Arab	3,037	7.1%
French	3,002	7%
Italian	2,647	6.2%

Ancestry	Count	%
Polish	180	0.4%
English	98	0.2%
Dutch	44	0.1%

Technology access

Metric	% of households
Computer access	35.7%
Internet access	92.9%

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

Frequently asked questions

What ZIP codes does Sulphur, LA have?

Sulphur, LA has two ZIP codes: 70663 and 70665. Each ZIP code serves a distinct delivery area within the city and surrounding region.