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 — ZIP/63099

63099

ZIP 63099 is in Fenton, Missouri, in St. Louis County; area code 636; Central time. Fenton has 2 ZIP codes; the other is 63026.

Type
No street area
Time zone
America/Chicago
County
St. Louis
Metro area
St. Louis, MO-IL
Coordinates
38.6383, -90.4271

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 63131, whose figures describe that area — not this ZIP code.

☼ Live from 63099 — Fenton, MO

Weather right now

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Local time: —

Where 63099 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 63099
  • 🔢 Type 63099 into a pocket calculator and turn it upside down: GGOEg — not quite a word, sorry.
  • ➕ As a number, 63,099 = 3 × 3 × 3 × 3 × 19 × 41. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111011001111011
  • 🏠 Its numerical neighbours: 63091 (Rosebud, MO, 55 mi away) and 63101 (Saint Louis, MO, 13 mi away).
  • 🔄 Backwards, 63099 becomes 99036 — and that is a real ZIP code: Valleyford, WA, 1,477 miles away.
  • 👥 17 other ZIP codes are made of exactly the same digits (39069, 39096, 60399, 60939, 69039, 90639, …). The farthest-flung twin is 96390 in APO AA, a military post office, 9,653 miles away.
  • 🧭 Farther south than 54% of all ZIP codes, and farther west than 57%.
  • 🎯444 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 63099 and you would come out at 38.64°S, 89.57°E — 1,208 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 52m of daylight. Shortest: 9h 28m.
🌙 The sky over 63099 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments12This ZIP12
Employees1,401This ZIP1,401
Annual payroll$108,124,000This ZIP$108,124,000

Land area

ZIP codes near 63099

ZIPCityDistance
63032 Florissant, MO 0.0 mi
63145 Saint Louis, MO 0.0 mi
63151 Saint Louis, MO 0.0 mi
63167 Saint Louis, MO 0.0 mi
63131 Saint Louis, MO 1.6 mi
63141 Saint Louis, MO 2.0 mi
63124 Saint Louis, MO 2.8 mi
63132 Saint Louis, MO 3.7 mi
63122 Saint Louis, MO 4.1 mi
63144 Saint Louis, MO 4.5 mi

Find every ZIP code within 10 miles of 63099 →

Questions about this ZIP code

Where is ZIP code 63099?

63099 is in Fenton, Missouri, in St. Louis County, part of the St. Louis, MO-IL metropolitan area. Its published point location is 38.6383, -90.4271.

What county is 63099 in?

63099 lies in St. Louis County.

What area code is 63099?

Fenton uses area code 636, from NANPA's telephone records.

What time zone is 63099 in?

63099 uses America/Chicago.

What ZIP codes are near 63099?

The closest are 63032 (0 mi), 63145 (0 mi), 63151 (0 mi), 63167 (0 mi) and 63131 (1.6 mi).

Is 63099 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “63099 ZIP Code — Fenton, Missouri (St. Louis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/63099

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curl https://zipcodes.pro/zip/63099.json

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