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zipcodes.pro — ZIP/63131

63131

ZIP 63131 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
17,935
Coordinates
38.6167, -90.4396
☼ Live from 63131 — Saint Louis, MO

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Where 63131 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 63131
  • 🔢 Type 63131 into a pocket calculator and turn it upside down: IEIEg — not quite a word, sorry.
  • ➕ 63131 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111011010011011
  • 🏠 Its numerical neighbours: 63130 (Saint Louis, MO, 7 mi away) and 63132 (Saint Louis, MO, 5 mi away).
  • 🔄 Backwards, 63131 becomes 13136 — and that is a real ZIP code: Pitcher, NY, 812 miles away.
  • 👥 22 other ZIP codes are made of exactly the same digits (11363, 13136, 13163, 13316, 13361, 13613, …). The farthest-flung twin is 33116 in Miami, FL, 1,069 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 63131 and you would come out at 38.62°S, 89.56°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.
  • 📏 At 13.6 square miles of land, 63131 is bigger than 31% of ZIP codes — room for about 10 Central Parks.
🌙 The sky over 63131 today
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🌋 Shake report
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Source: USGS.

People and housing

Population17,935This ZIP17,935
Households6,511This ZIP6,511
Housing units6,605This ZIP6,605
Median age46.3This ZIP46.3Missouri39.0US 38.9
Median household income$225,493This ZIP$225,493Missouri$70,702US $80,734
Median home value$778,100This ZIP$778,100Missouri$230,300US $332,700
Median gross rent$1,896This ZIP$1,896Missouri$1,033US $1,413
Bachelor's degree or higher81.6%This ZIP81.6%
Mean commute18.8 minThis ZIP18.8 min
Population density1,315.9 / sq miThis ZIP1,315.9 / sq mi

Business and tax activity

Business establishments1,163This ZIP1,163
Employees31,648This ZIP31,648
Annual payroll$2,707,933,000This ZIP$2,707,933,000
Tax returns filed8,780This ZIP8,780
Total adjusted gross income$3,524,999,000This ZIP$3,524,999,000

Land area

Land area13.63 sq miThis ZIP13.63 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 63131

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

ZIP codes near 63131

ZIPCityDistance
63032 Florissant, MO 1.6 mi
63099 Fenton, MO 1.6 mi
63145 Saint Louis, MO 1.6 mi
63151 Saint Louis, MO 1.6 mi
63167 Saint Louis, MO 1.6 mi
63122 Saint Louis, MO 2.8 mi
63141 Saint Louis, MO 3.0 mi
63124 Saint Louis, MO 3.8 mi
63144 Saint Louis, MO 4.9 mi
63119 Saint Louis, MO 5.2 mi

Find every ZIP code within 10 miles of 63131 →

Questions about this ZIP code

Where is ZIP code 63131?

63131 is in Saint Louis, Missouri, in St. Louis County, part of the St. Louis, MO-IL metropolitan area. Its published point location is 38.6167, -90.4396.

What county is 63131 in?

63131 lies in St. Louis County.

What area code is 63131?

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

What time zone is 63131 in?

63131 uses America/Chicago.

How many people live in 63131?

About 17,935 people live in ZIP code 63131, in 6,511 households, at 1,315.9 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 63131?

$225,493 a year, against $70,702 across Missouri.

What ZIP codes are near 63131?

The closest are 63032 (1.6 mi), 63099 (1.6 mi), 63145 (1.6 mi), 63151 (1.6 mi) and 63167 (1.6 mi).

Is 63131 a PO Box ZIP code?

63131 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “63131 ZIP Code — Saint Louis, Missouri (St. Louis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/63131

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