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/SANIBEL

Sanibel ZIP code, Florida

The ZIP code for Sanibel, FL is 33957, and its area code is 239.

USPS city name
1 ZIP code
Population
6,418
Area code
239
State
Florida

NANPA lists no telephone rate centre for Sanibel itself, so these are the area codes of the nearest one, Fort Myers (8.2 miles). A town on an area-code boundary can differ from its neighbour.

Sanibel in numbers

About 6,418 people live in Sanibel, in 3,170 households. The median household income is $108,644 a year, 46% above the Florida median of $74,568 (US: $80,734). The median owner-occupied home is valued at $957,300 (2.7 times the Florida median), and median gross rent is $811 a month. The median age is 67.3; 61.0% of adults 25 and over hold a bachelor's degree or higher (34.1% across Florida); the average commute takes 21 minutes.

Population6,418Sanibel6,418
Households3,170Sanibel3,170
Median age67.3Sanibel67.3Florida42.6US 38.9
Median household income$108,644Sanibel$108,644Florida$74,568US $80,734
Median home value$957,300Sanibel$957,300Florida$359,000US $332,700
Median gross rent$811Sanibel$811Florida$1,669US $1,413
Bachelor's degree or higher61.0%Sanibel61.0%Florida34.1%US 35.7%
Mean commute21.4 minSanibel21.4 minFlorida28.0 minUS 26.4 min
Population density397 / sq miSanibel397 / sq mi

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

ZIP codes addressed as Sanibel

ZIP codes with the USPS city name Sanibel
ZIP City Type Population Median income Median home
33957 Sanibel , FL Standard 6,418 $108,644 $957,300

Map of Sanibel ZIP codes

33957

The ZIP codes of Sanibel, 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 Sanibel

The nearest larger towns are Iona (13,631 people, 10 mi), Cypress Lake (13,032 people, 14 mi) and McGregor (8,490 people, 14 mi).

Towns near Sanibel
TownPopulationDistance
St. James City 3,412 6.3 mi
Iona 13,631 10.1 mi
Fort Myers Beach 5,513 11.9 mi
Cypress Lake 13,032 14.1 mi
McGregor 8,490 14.2 mi
Cape Coral 215,536 14.9 mi
Whiskey Creek 5,371 15.8 mi
Villas 13,644 16.2 mi
Pine Manor 3,660 16.5 mi
San Carlos Park 19,159 17.8 mi
Lochmoor Waterway Estates 6,511 18.0 mi
Estero 37,858 19.0 mi
Three Oaks 6,144 19.2 mi
Fort Myers 95,051 20.6 mi

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

Cite this page

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

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