Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/FL/MARATHON

Marathon ZIP code, Florida

The ZIP code for Marathon, FL is 33050.

USPS city name
1 ZIP code
Population
9,914
State
Florida

Marathon in numbers

About 9,914 people live in Marathon, in 4,018 households. The median household income is $89,355 a year, 20% above the Florida median of $74,568 (US: $80,734). The median owner-occupied home is valued at $725,800 (2.0 times the Florida median), and median gross rent is $1,633 a month. The median age is 45.6; 33.1% of adults 25 and over hold a bachelor's degree or higher (34.1% across Florida); the average commute takes 14 minutes.

Population9,914Marathon9,914
Households4,018Marathon4,018
Median age45.6Marathon45.6Florida42.6US 38.9
Median household income$89,355Marathon$89,355Florida$74,568US $80,734
Median home value$725,800Marathon$725,800Florida$359,000US $332,700
Median gross rent$1,633Marathon$1,633Florida$1,669US $1,413
Bachelor's degree or higher33.1%Marathon33.1%Florida34.1%US 35.7%
Mean commute13.7 minMarathon13.7 minFlorida28.0 minUS 26.4 min
Population density1,174 / sq miMarathon1,174 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Marathon city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Marathon

ZIP codes with the USPS city name Marathon
ZIP City Type Population Median income Median home
33050 Marathon , FL Standard 10,561 $94,898 $747,300

Map of Marathon ZIP codes

33050

The ZIP codes of Marathon, FL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Marathon

The nearest larger towns are Key Largo (13,026 people, 47 mi), Key West (25,720 people, 49 mi) and Florida City (12,943 people, 60 mi).

Towns near Marathon
TownPopulationDistance
Big Pine Key 4,258 21.4 mi

More nearby: every ZIP code in Monroe County · Florida ZIP codes

Cite this page

zipcodes.pro. “Marathon, FL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/fl/marathon

Underlying data is public domain or openly licensed — sources, vintages and licences.