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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/63104

63104

ZIP 63104 is in Saint Louis, Missouri, in St. Louis City; area codes 314 and 557; Central time. Saint Louis has 68 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
Metro area
St. Louis, MO-IL
Population
19,007
Coordinates
38.6111, -90.2141
☼ Live from 63104 — Saint Louis, MO

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Local time: —

Where 63104 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 63104
  • 🔢 Type 63104 into a pocket calculator and turn it upside down: hOIEg — not quite a word, sorry.
  • ➕ As a number, 63,104 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 17 × 29. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111011010000000
  • 🏠 Its numerical neighbours: 63103 (Saint Louis, MO, 1 mi away) and 63105 (Saint Louis, MO, 7 mi away).
  • 🔄 Backwards, 63104 becomes 40136, which is not a ZIP code at all.
  • 👥 68 other ZIP codes are made of exactly the same digits (01346, 01364, 01436, 01463, 03461, 04613, …). The farthest-flung twin is 34061 in FPO AA, a military post office, 2,153 miles away.
  • 🧭 Farther south than 54% of all ZIP codes, and farther west than 57%.
  • 🎯455 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 63104 and you would come out at 38.61°S, 89.79°E — 1,217 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 3.4 square miles of land, 63104 is bigger than 15% of ZIP codes — room for about 2.6 Central Parks.
🌙 The sky over 63104 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population19,007This ZIP19,007
Households9,888This ZIP9,888
Housing units11,176This ZIP11,176
Median age37.3This ZIP37.3Missouri39.0US 38.9
Median household income$68,764This ZIP$68,764Missouri$70,702US $80,734
Median home value$268,900This ZIP$268,900Missouri$230,300US $332,700
Median gross rent$1,096This ZIP$1,096Missouri$1,033US $1,413
Bachelor's degree or higher52.0%This ZIP52.0%
Mean commute19.8 minThis ZIP19.8 min
Population density5,650.1 / sq miThis ZIP5,650.1 / sq mi

Business and tax activity

Business establishments533This ZIP533
Employees14,917This ZIP14,917
Annual payroll$1,102,707,000This ZIP$1,102,707,000
Tax returns filed8,810This ZIP8,810
Total adjusted gross income$763,831,000This ZIP$763,831,000

Land area

Land area3.36 sq miThis ZIP3.36 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Other place names in 63104

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

ZIP codes near 63104

ZIPCityDistance
63155 Saint Louis, MO 1.2 mi
63103 Saint Louis, MO 1.3 mi
63150 Saint Louis, MO 1.4 mi
63169 Saint Louis, MO 1.4 mi
63180 Saint Louis, MO 1.4 mi
63182 Saint Louis, MO 1.4 mi
63188 Saint Louis, MO 1.4 mi
63197 Saint Louis, MO 1.4 mi
63118 Saint Louis, MO 1.4 mi
63101 Saint Louis, MO 1.8 mi

Find every ZIP code within 10 miles of 63104 →

Questions about this ZIP code

Where is ZIP code 63104?

63104 is in Saint Louis, Missouri, in St. Louis city, part of the St. Louis, MO-IL metropolitan area. Its published point location is 38.6111, -90.2141.

What county is 63104 in?

63104 lies in St. Louis city.

What area code is 63104?

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

What time zone is 63104 in?

63104 uses America/Chicago.

How many people live in 63104?

About 19,007 people live in ZIP code 63104, in 9,888 households, at 5,650.1 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 63104?

$68,764 a year, against $70,702 across Missouri.

What ZIP codes are near 63104?

The closest are 63155 (1.2 mi), 63103 (1.3 mi), 63150 (1.4 mi), 63169 (1.4 mi) and 63180 (1.4 mi).

Is 63104 a PO Box ZIP code?

63104 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “63104 ZIP Code — Saint Louis, Missouri (St. Louis City).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/63104

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