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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/63124

63124

ZIP 63124 is in Saint Louis, Missouri, in St. Louis County; area codes 314 and 557; Central time. Saint Louis has 68 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
St. Louis
Metro area
St. Louis, MO-IL
Population
10,839
Coordinates
38.6366, -90.3747
☼ Live from 63124 — Saint Louis, MO

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Where 63124 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 63124
  • 🔢 Type 63124 into a pocket calculator and turn it upside down: hZIEg — not quite a word, sorry.
  • ➕ As a number, 63,124 = 2 × 2 × 43 × 367. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111011010010100
  • 🏠 Its numerical neighbours: 63123 (Saint Louis, MO, 7 mi away) and 63125 (Saint Louis, MO, 9 mi away).
  • 🔄 Backwards, 63124 becomes 42136, which is not a ZIP code at all.
  • 👥 60 other ZIP codes are made of exactly the same digits (12436, 12463, 13426, 13624, 13642, 14263, …). The farthest-flung twin is 12463 in Palenville, NY, 894 miles away.
  • 🧭 Farther south than 54% of all ZIP codes, and farther west than 57%.
  • 🎯447 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 63124 and you would come out at 38.64°S, 89.63°E — 1,210 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.
  • 📏 At 8.9 square miles of land, 63124 is bigger than 26% of ZIP codes — room for about 6.8 Central Parks.
🌙 The sky over 63124 today
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🌋 Shake report
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Source: USGS.

People and housing

Population10,839This ZIP10,839
Households4,832This ZIP4,832
Housing units5,390This ZIP5,390
Median age49.2This ZIP49.2Missouri39.0US 38.9
Median household income$193,942This ZIP$193,942Missouri$70,702US $80,734
Median home value$988,600This ZIP$988,600Missouri$230,300US $332,700
Median gross rent$1,961This ZIP$1,961Missouri$1,033US $1,413
Bachelor's degree or higher85.7%This ZIP85.7%
Mean commute14.8 minThis ZIP14.8 min
Population density1,213.9 / sq miThis ZIP1,213.9 / sq mi

Business and tax activity

Business establishments491This ZIP491
Employees7,791This ZIP7,791
Annual payroll$385,340,000This ZIP$385,340,000
Tax returns filed5,400This ZIP5,400
Total adjusted gross income$3,126,326,000This ZIP$3,126,326,000

Land area

Land area8.93 sq miThis ZIP8.93 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 63124

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

ZIP codes near 63124

ZIPCityDistance
63144 Saint Louis, MO 1.9 mi
63117 Saint Louis, MO 2.4 mi
63105 Saint Louis, MO 2.6 mi
63132 Saint Louis, MO 2.7 mi
63032 Florissant, MO 2.8 mi
63099 Fenton, MO 2.8 mi
63145 Saint Louis, MO 2.8 mi
63151 Saint Louis, MO 2.8 mi
63167 Saint Louis, MO 2.8 mi
63130 Saint Louis, MO 3.3 mi

Find every ZIP code within 10 miles of 63124 →

Questions about this ZIP code

Where is ZIP code 63124?

63124 is in Saint Louis, Missouri, in St. Louis County, part of the St. Louis, MO-IL metropolitan area. Its published point location is 38.6366, -90.3747.

What county is 63124 in?

63124 lies in St. Louis County.

What area code is 63124?

Saint Louis uses area codes 314 and 557, from NANPA's telephone records.

What time zone is 63124 in?

63124 uses America/Chicago.

How many people live in 63124?

About 10,839 people live in ZIP code 63124, in 4,832 households, at 1,213.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 63124?

$193,942 a year, against $70,702 across Missouri.

What ZIP codes are near 63124?

The closest are 63144 (1.9 mi), 63117 (2.4 mi), 63105 (2.6 mi), 63132 (2.7 mi) and 63032 (2.8 mi).

Is 63124 a PO Box ZIP code?

63124 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “63124 ZIP Code — Saint Louis, Missouri (St. Louis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/63124

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