Port Sulphur ZIP Code List — Plaquemines County, LA

There is one unique ZIP code in Port Sulphur, Louisiana and it is 70083. Area code: 504.

ZIP codes

129.19

sq mi land

55.50

sq mi water

504

area code

Port Sulphur, LA ZIP code map

About Port Sulphur, LA

Port Sulphur, Louisiana, is a quaint community nestled in Plaquemines Parish, along the vibrant shores of the Mississippi River. Known for its rich cultural heritage and close-knit community, Port Sulphur offers a blend of picturesque scenery and Southern charm. This unique town serves as a gateway to the beautiful Bayou country and the scenic landscapes of Louisiana.

Location & geography

Port Sulphur is situated approximately 30 miles south of New Orleans, providing easy access to the bustling metropolis while maintaining its rural tranquility. The town covers a vast area of 129.19 square miles, with 55.50 square miles designated as water, making it a locale rich in natural resources and waterways. The terrain around Port Sulphur is characterized by its wetland ecosystems and diverse wildlife, inviting those who appreciate nature and outdoor activities.

Community & economy

The character of Port Sulphur is defined by its friendly residents and strong family values, creating a welcoming atmosphere for both locals and visitors. The economy primarily thrives on industries such as fishing, agriculture, and oil and gas extraction, reflecting the town's historical roots and economic resilience. Daily life in Port Sulphur is marked by community events, local festivals, and an appreciation for Louisiana's unique cultural heritage.

Transportation

Access to Port Sulphur is facilitated by major highways including LA-23, which connects the town to nearby regional hubs. The nearest airport is Louis Armstrong New Orleans International Airport, located about 35 miles to the northwest, providing domestic and international flights for residents and visitors alike. Public transportation options are limited, but local commuting is primarily done by car.

History

Port Sulphur was founded during the early 20th century, primarily linked to the burgeoning sulphur industry that gave the town its name. The community grew as a vital point for the shipping and exportation of sulphur and other local resources. Over the years, significant weather events, such as hurricanes, have shaped the community's resilience and restoration efforts.

Did you know?

An interesting fact about Port Sulphur is that it was once known for its sulphur mines, which played a critical role in the local economy during the early 1900s. Today, it is recognized for its proximity to nature preserves and vibrant fishing spots, attracting both tourists and nature enthusiasts.

ZIP codes for Port Sulphur, LA (1)

ZIP code	City	County	Map
70083	Port Sulphur	Plaquemines	View map

Demographics & statistics

2,155

Population

38.1

Median age

$47,813

Median household income

$27,526

Per capita income

$95,800

Median home value

Median monthly rent

80.6%

Home ownership

14.3%

Poverty rate

12.5%

Unemployment

811

Housing units

13.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

174

10–14

139

15–19

205

20–24

163

113

25–34

35–44

197

45–54

156

55–59

123

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	501	23.2%
18 and over	1,654	76.8%
65 and over	260	12.1%
Median age	38.1 years

Race & ethnicity

Black or African American 40.5%

White 21.7%

Two or more races 18%

Hispanic or Latino 10.4%

Asian 5.7%

American Indian / Alaska Native 3%

Other race 0.7%

Group	Count	%
Black or African American	974	40.5%
White	523	21.7%
Two or more races	432	18%
Hispanic or Latino	251	10.4%
Asian	136	5.7%
American Indian / Alaska Native	72	3%
Other race	18	0.7%

Household income

Under $10k 16.4%

$10k–$15k 3.1%

$15k–$25k 5.9%

$25k–$35k 19.7%

$35k–$50k 5.3%

$50k–$75k 9.5%

$75k–$100k 10.7%

$100k–$150k 21.4%

$150k–$200k 3.3%

$200k+ 4.7%

Range	% of households
Under $10k	16.4%
$10k–$15k	3.1%
$15k–$25k	5.9%
$25k–$35k	19.7%
$35k–$50k	5.3%
$50k–$75k	9.5%
$75k–$100k	10.7%
$100k–$150k	21.4%
$150k–$200k	3.3%
$200k+	4.7%
Median income	$47,813

Housing

Home values

Under $50k 18.9%

$50k–$100k 31.9%

$100k–$150k 22.7%

$150k–$200k 4.9%

$200k–$300k 3.7%

$300k–$500k 14.6%

$500k–$1M 3.4%

Housing overview

Metric	Value
Median home value	$95,800
Median rent / month	$0
Owner occupied	80.6%
Renter occupied	19.4%
Vacant	20.1%
Single-family detached	25.2%
Large apartment buildings	0.0%
Mobile homes	68.9%
Median rooms	5.0
Avg household size (owned)	3.03

Year built

Era	%
2020 or later	0.0%
2010–2019	8.0%
2000–2009	74.0%
1990–1999	11.7%
1980–1989	0.0%
1970–1979	4.2%
1960–1969	0.6%
1950–1959	0.0%
1940–1949	1.6%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	2.8%
1 bedroom	5.7%
2 bedrooms	25.0%
3 bedrooms	43.6%
4 bedrooms	19.0%
5+ bedrooms	3.9%

Vehicles per household

Vehicles	% of households
No vehicle	14.6%
1 vehicle	38.1%
2 vehicles	28.6%
3 or more	18.8%

Heating fuel

Fuel type	%
Utility gas	1.3%
Electricity	97.8%
Propane / LP gas	0.9%

Households & families

Household type	Count	%
Married-couple family	288	37.5%
Cohabiting couple	46	6.0%
Male householder, no spouse	152	19.8%
Female householder, no spouse	281	36.6%
Households with children under 18	285	37.2%
Households with seniors (65+)	180	23.5%
Average household size	2.79

Marital status

Status	Male	Female
Never married	44.3%	19.3%
Married	37.8%	43.8%
Separated	4.5%	1.5%
Widowed	0.5%	10.2%
Divorced	12.9%	25.3%

Education

Less than 9th grade 16.6%

Some HS, no diploma 10.9%

HS graduate 27.5%

Some college, no degree 24.8%

Associate's degree 6.3%

Bachelor's degree 4.4%

Graduate / professional 9.5%

Metric	%
HS diploma or higher	72.5%
Bachelor's or higher	13.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	114	30.3%
Kindergarten	10	2.7%
Elementary school	198	52.7%
High school	10	2.7%
College / grad school	44	11.7%

Employment

Industry of employment

Public administration 19.7%

Transportation & utilities 19.1%

Education & healthcare 15.2%

Arts, food & hospitality 11.0%

Construction 10.1%

Retail trade 8.6%

Professional & management 7.4%

Other services 2.6%

Finance & real estate 2.3%

Agriculture & mining 1.8%

Manufacturing 1.3%

Wholesale trade 0.9%

Occupation

Category	%
Management, business & arts	29.8%
Service	26.3%
Sales & office	18.8%
Natural resources & construction	10.2%
Production & transportation	14.8%

Employment type

Type	%
Private sector	61.6%
Government	36.3%
Self-employed	1.7%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	82.1%
Carpool	17.9%
Public transit	0.0%
Walk	0.0%
Other means	0.0%
Avg commute (minutes)	26.8

Poverty

All people 14.3%

Under 18 years 18.8%

18 and over 13.0%

Married-couple families 4.2%

Female-led households 40.5%

Income support

Source	% of households
Social Security	23.7%
Retirement income	22.9%
Supplemental Security	14.6%
Cash public assistance	6.9%
Food stamps / SNAP	37.7%

Health indicators

Condition	%
High blood pressure	46.7%
High cholesterol	35.5%
Heart disease	8.5%
Stroke	5.5%
Asthma	11.4%
Arthritis	29.1%
Kidney disease	4.3%
Pulmonary disease	10.4%
Cancer	5.8%

Behavior / access	%
Binge drinking	16.0%
No physical activity	39.9%
Less than 7 hrs sleep	42.5%
Fair or poor health	28.2%
Poor mental health	19.7%
Poor physical health	16.7%
No health insurance	19.3%
Visited doctor (checkup)	80.6%
Visited dentist	45.2%
Cholesterol screening	88.7%
Teeth loss	25.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	138	8.3%

Disability	%
Any disability	15.3%
Under 18	0.0%
18–64 years	16.8%
65 and over	37.3%

Health insurance coverage

Type	%
Private insurance	44.0%
Public insurance	54.5%
Uninsured under 19	5.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,012	93.4%
Spanish	39	1.9%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	39	1.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,110	97.9%
Born in same state	2,089	96.9%
Born in different state	1,783	82.7%
Foreign born	21	1.0%
Naturalized citizen	45	2.1%
Not a US citizen	28	62.2%

Ancestry

Ancestry	Count	%
Italian	120	5.6%
Arab	45	2.1%
Norwegian	37	1.7%

Ancestry	Count	%
English	14	0.6%
French	1	0%

Technology access

Metric	% of households
Computer access	35.6%
Internet access	89.2%

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

Frequently asked questions

What is the ZIP code for Port Sulphur, LA?

Port Sulphur, LA has one ZIP code: 70083.

What is the main ZIP code for Port Sulphur, LA?

The primary ZIP code for Port Sulphur, LA is 70083. The city uses area code 504 for phone service.

What county is Port Sulphur, LA in?

Port Sulphur is located in Plaquemines County, Louisiana.

How many ZIP codes are in Port Sulphur, LA?

Port Sulphur, LA has 1 ZIP code.

What is the ZIP code for the Port Sulphur industrial area along the Mississippi River?

The Port Sulphur industrial and port facilities area uses ZIP code 70083, which serves the main commercial shipping and industrial zones in this Plaquemines County community.

Which ZIP code should I use for mailing packages to businesses in downtown Port Sulphur?

All mail and packages destined for Port Sulphur, including the downtown commercial district, should be addressed to ZIP code 70083.