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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 — ZIP/33001

33001

ZIP 33001 is Long Key, Florida, in Monroe County; Eastern time.

Type
Standard
Time zone
America/New_York
County
Monroe
Population
250
Coordinates
24.8355, -80.8016
☼ Live from 33001 — Long Key, FL

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Local time: —

Where 33001 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 33001
  • 🔢 Type 33001 into a pocket calculator and turn it upside down: IOOEE — not quite a word, sorry.
  • ➕ As a number, 33,001 = 61 × 541. Its digits add up to 7, a total 150 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1000000011101001
  • 🏠 Its numerical neighbours: 32978 (Sebastian, FL, 199 mi away) and 33002 (Hialeah, FL, 78 mi away).
  • 🔄 Backwards, 33001 becomes 10033 — and that is a real ZIP code: New York, NY, 1,175 miles away.
  • 👥 16 other ZIP codes are made of exactly the same digits (01033, 01330, 03031, 03103, 03301, 10033, …). The farthest-flung twin is 03301 in Concord, NH, 1,375 miles away.
  • 🧭 Farther south than 98% of all ZIP codes, and farther east than 71%.
  • 🎯1,461 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 33001 and you would come out at 24.84°S, 99.20°E — 890 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 41m of daylight. Shortest: 10h 36m.
  • 📏 At 2.0 square miles of land, 33001 is bigger than 11% of ZIP codes — room for about 1.5 Central Parks.
🌙 The sky over 33001 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population250This ZIP250
Households131This ZIP131
Housing units600This ZIP600
Median age63.7This ZIP63.7Florida42.6US 38.9
Median home value$703,100This ZIP$703,100Florida$359,000US $332,700
Median gross rent$2,175This ZIP$2,175Florida$1,669US $1,413
Bachelor's degree or higher32.4%This ZIP32.4%
Mean commute17.8 minThis ZIP17.8 min
Population density128.0 / sq miThis ZIP128.0 / sq mi

Business and tax activity

Business establishments12This ZIP12
Employees97This ZIP97
Annual payroll$3,973,000This ZIP$3,973,000

Land area

Land area1.95 sq miThis ZIP1.95 sq mi
Water area1.92 sq miThis ZIP1.92 sq mi

Other place names in 33001

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 33001

ZIPCityDistance
33036 Islamorada, FL 7.9 mi
33050 Marathon, FL 13.0 mi
33051 Key Colony Beach, FL 15.8 mi
33052 Marathon Shores, FL 18.2 mi
33070 Tavernier, FL 20.9 mi
33043 Big Pine Key, FL 31.0 mi
33037 Key Largo, FL 36.3 mi
33034 Homestead, FL 43.9 mi
33042 Summerland Key, FL 45.6 mi
33035 Homestead, FL 47.7 mi

Find every ZIP code within 10 miles of 33001 →

Questions about this ZIP code

Where is ZIP code 33001?

33001 is in Long Key, Florida, in Monroe County, part of the Key West-Key Largo, FL micropolitan area. Its published point location is 24.8355, -80.8016.

What county is 33001 in?

33001 lies in Monroe County.

What time zone is 33001 in?

33001 uses America/New_York.

How many people live in 33001?

About 250 people live in ZIP code 33001, in 131 households, at 128.0 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 33001?

The closest are 33036 (7.9 mi), 33050 (13 mi), 33051 (15.8 mi), 33052 (18.2 mi) and 33070 (20.9 mi).

Is 33001 a PO Box ZIP code?

33001 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “33001 ZIP Code — Long Key, Florida (Monroe County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/33001

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