Marathon ZIP Codes — Monroe County, FL

There is one unique ZIP code in Marathon, Florida and it is 33050. Area code: 305/786.

ZIP codes

9.08

sq mi land

46.20

sq mi water

305/786

area code

Marathon, FL ZIP code map

About Marathon, FL

Marathon, Florida, is a charming city located in the heart of the Florida Keys. It boasts a beautiful coastal atmosphere, attracting visitors with its stunning vistas and abundant marine life. Known for its laid-back vibe, Marathon is a great place for both residents and tourists seeking a slice of paradise.

Location & geography

Marathon is situated within Monroe County, Florida, and covers an area of 18.16 square miles of land and 92.41 square miles of water. It is bordered by several nearby cities, including Key Colony Beach, about 2.5 miles to the north, and Big Pine Key, which lies approximately 22 miles to the northwest. The geography of Marathon features a picturesque mix of islands and waterways, making it a favorite spot for boating and fishing.

Community & economy

The character of Marathon is defined by its close-knit community and vibrant local culture. The economy thrives on tourism, fishing, and boating, with many residents engaging in the hospitality industry. Daily life here is relaxed, with plenty of opportunities for outdoor activities such as snorkeling, diving, and enjoying the local beaches.

Transportation

Marathon is accessible via U.S. Highway 1, which runs through the Keys, connecting it to Key West to the south and Miami to the north. The nearest named airport is the Florida Keys Marathon Airport, which offers general aviation services and limited commercial flights. Public transportation options are limited, so many residents and visitors rely on personal vehicles or bicycles to navigate the area.

History

Marathon was established as a town in the early 20th century, primarily serving as a center for fishing and the sponging industry. Over the years, it evolved into a tourist destination, especially with the completion of the Overseas Highway. Notable events include the opening of the Seven Mile Bridge in 1982, which solidified Marathon's role as a gateway to the southern Keys.

Did you know?

One surprising fact about Marathon is that it is home to the famous Dolphin Research Center, where visitors can interact with dolphins and learn about marine conservation. Additionally, Marathon is one of the few locations in Florida where sea turtles can nest on its beaches.

ZIP codes for Marathon, FL (1)

ZIP code	City	County	Map
33050	Marathon	Monroe	View map

Demographics & statistics

10,520

Population

49.1

Median age

$74,487

Median household income

$49,967

Per capita income

$668,700

Median home value

$1,498

Median monthly rent

54.4%

Home ownership

11.7%

Poverty rate

5.9%

Unemployment

5,259

Housing units

31.6%

Bachelor's or higher

Age distribution

Male Female

239

Under 5

214

159

5–9

143

348

10–14

312

350

15–19

314

210

20–24

188

547

25–34

489

631

35–44

564

879

45–54

787

404

55–59

361

512

60–64

458

809

65–74

724

412

75–84

368

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,880	17.9%
18 and over	8,640	82.1%
65 and over	2,411	22.9%
Median age	49.1 years

Race & ethnicity

White 62.9%

Hispanic or Latino 15.4%

Two or more races 14.8%

Black or African American 3.8%

Other race 2.5%

Asian 0.6%

Group	Count	%
White	7,826	62.9%
Hispanic or Latino	1,921	15.4%
Two or more races	1,841	14.8%
Black or African American	467	3.8%
Other race	311	2.5%
Asian	75	0.6%

Household income

Under $10k 4.3%

$10k–$15k 2.2%

$15k–$25k 7.1%

$25k–$35k 6.5%

$35k–$50k 12.8%

$50k–$75k 17.4%

$75k–$100k 12.4%

$100k–$150k 15.1%

$150k–$200k 11.6%

$200k+ 10.7%

Range	% of households
Under $10k	4.3%
$10k–$15k	2.2%
$15k–$25k	7.1%
$25k–$35k	6.5%
$35k–$50k	12.8%
$50k–$75k	17.4%
$75k–$100k	12.4%
$100k–$150k	15.1%
$150k–$200k	11.6%
$200k+	10.7%
Median income	$74,487

Housing

Home values

Under $50k 3.7%

$50k–$100k 1.5%

$100k–$150k 2.0%

$150k–$200k 2.7%

$200k–$300k 3.5%

$300k–$500k 19.6%

$500k–$1M 39.2%

$1M+ 27.8%

Housing overview

Metric	Value
Median home value	$668,700
Median rent / month	$1,498
Owner occupied	54.4%
Renter occupied	45.6%
Vacant	40.9%
Single-family detached	49.6%
Large apartment buildings	9.2%
Mobile homes	9.4%
Median rooms	3.7
Avg household size (owned)	2.31

Year built

Era	%
2020 or later	2.1%
2010–2019	8.5%
2000–2009	6.2%
1990–1999	8.2%
1980–1989	23.1%
1970–1979	31.8%
1960–1969	10.6%
1950–1959	7.4%
1940–1949	0.8%
1939 or earlier	1.5%

Bedrooms

Size	% of units
No bedroom (studio)	2.1%
1 bedroom	15.9%
2 bedrooms	43.3%
3 bedrooms	29.9%
4 bedrooms	8.3%
5+ bedrooms	0.5%

Vehicles per household

Vehicles	% of households
No vehicle	5.0%
1 vehicle	40.9%
2 vehicles	39.9%
3 or more	14.2%

Heating fuel

Fuel type	%
Utility gas	1.7%
Electricity	88.8%
Propane / LP gas	0.4%
Solar	0.3%
No fuel used	8.8%

Households & families

Household type	Count	%
Married-couple family	1,974	46.4%
Cohabiting couple	521	12.2%
Male householder, no spouse	975	22.9%
Female householder, no spouse	786	18.5%
Households with children under 18	909	21.4%
Households with seniors (65+)	1,680	39.5%
Average household size	2.43

Marital status

Status	Male	Female
Never married	29.5%	25.6%
Married	46.0%	50.9%
Separated	2.3%	1.5%
Widowed	4.2%	8.5%
Divorced	18.1%	13.6%

Education

Less than 9th grade 5.2%

Some HS, no diploma 6.5%

HS graduate 30.4%

Some college, no degree 20.1%

Associate's degree 6.3%

Bachelor's degree 19.6%

Graduate / professional 12.0%

Metric	%
HS diploma or higher	88.4%
Bachelor's or higher	31.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	60	3.4%
Kindergarten	48	2.7%
Elementary school	831	46.9%
High school	599	33.8%
College / grad school	233	13.2%

Employment

Industry of employment

Arts, food & hospitality 17.3%

Construction 14.5%

Education & healthcare 14.0%

Retail trade 12.8%

Professional & management 10.6%

Transportation & utilities 6.7%

Other services 6.4%

Public administration 5.2%

Finance & real estate 4.6%

Agriculture & mining 3.4%

Wholesale trade 2.0%

Manufacturing 1.8%

Information 0.7%

Occupation

Category	%
Management, business & arts	28.3%
Service	22.1%
Sales & office	20.3%
Natural resources & construction	19.1%
Production & transportation	10.2%

Employment type

Type	%
Private sector	76.6%
Government	11.2%
Self-employed	12.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	62.7%
Carpool	12.4%
Public transit	0.0%
Walk	9.7%
Other means	6.5%
Avg commute (minutes)	13.5

Poverty

All people 11.7%

Under 18 years 15.6%

18 and over 10.9%

Married-couple families 2.4%

Female-led households 39.2%

Income support

Source	% of households
Social Security	36.2%
Retirement income	19.5%
Supplemental Security	3.5%
Cash public assistance	2.9%
Food stamps / SNAP	9.6%

Health indicators

Condition	%
High blood pressure	34.6%
High cholesterol	34.5%
Heart disease	7.9%
Stroke	3.6%
Asthma	8.3%
Arthritis	25.6%
Kidney disease	3.4%
Pulmonary disease	8.7%
Cancer	7.4%

Behavior / access	%
Binge drinking	16.7%
No physical activity	25.9%
Less than 7 hrs sleep	34.4%
Fair or poor health	17.0%
Poor mental health	14.2%
Poor physical health	12.3%
No health insurance	21.8%
Visited doctor (checkup)	73.8%
Visited dentist	62.6%
Cholesterol screening	92.2%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	520	6.1%

Disability	%
Any disability	9.6%
Under 18	4.0%
18–64 years	6.2%
65 and over	22.5%

Health insurance coverage

Type	%
Private insurance	60.3%
Public insurance	33.5%
Uninsured under 19	7.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	10,067	95.7%
Spanish	1,734	17.2%
Other Indo-European	1,668	16.6%
Asian & Pacific Islander	55	0.5%
Other languages	11	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,599	72.2%
Born in same state	7,494	71.2%
Born in different state	3,057	29.1%
Foreign born	105	1.0%
Naturalized citizen	2,921	27.8%
Not a US citizen	1,724	59.0%

Ancestry

Ancestry	Count	%
Italian	1,060	10.1%
French	731	6.9%
Arab	376	3.6%
English	83	0.8%

Ancestry	Count	%
Polish	56	0.5%
Irish	50	0.5%
German	37	0.4%
Dutch	19	0.2%

Technology access

Metric	% of households
Computer access	40.5%
Internet access	93.0%

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

Frequently asked questions

What ZIP codes does Marathon, FL have?

Marathon, FL has one ZIP code: 33050. Each ZIP code serves a distinct delivery area within the city and surrounding region.