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 — CITY/MO/MEHLVILLE

Mehlville ZIP codes, Missouri

No ZIP code is named for Mehlville, MO; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 63129, 63123 and 63125. Its area codes are 314 and 557.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
29,805
Area codes
314, 557

Mehlville in numbers

About 29,805 people live in Mehlville, in 13,507 households, the 23rd-largest of Missouri's 1,062 census places. The median household income is $67,071 a year, 5% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $218,400 (5% below the Missouri median), and median gross rent is $1,066 a month. The median age is 42.4; 31.4% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 23 minutes.

Population29,805Mehlville29,805
Households13,507Mehlville13,507
Median age42.4Mehlville42.4Missouri39.0US 38.9
Median household income$67,071Mehlville$67,071Missouri$70,702US $80,734
Median home value$218,400Mehlville$218,400Missouri$230,300US $332,700
Median gross rent$1,066Mehlville$1,066Missouri$1,033US $1,413
Bachelor's degree or higher31.4%Mehlville31.4%Missouri32.4%US 35.7%
Mean commute22.8 minMehlville22.8 minMissouri23.5 minUS 26.4 min
Population density3,986 / sq miMehlville3,986 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Mehlville CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Mehlville

These ZIP codes cover part of Mehlville but are addressed as somewhere else.

ZIP codes overlapping Mehlville
ZIP City Type Population Median income Median home
63123 Saint Louis , MO Standard 49,077 $77,055 $219,400
63125 Saint Louis , MO Standard 33,294 $61,624 $178,600
63129 Saint Louis , MO Standard 51,553 $94,888 $295,600

Map of Mehlville ZIP codes

631236312563129

The ZIP codes of Mehlville, MO, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Mehlville

The nearest larger towns are Oakville (35,333 people, 3.6 mi), St. Louis (288,512 people, 10.0 mi) and University City (34,685 people, 11 mi).

Towns near Mehlville
TownPopulationDistance
Green Park 2,690 1.9 mi
Concord 18,368 2.1 mi
Lemay 16,228 2.7 mi
Affton 19,052 3.4 mi
Sappington 7,367 3.6 mi
Oakville 35,333 3.6 mi
Crestwood 12,295 5.1 mi
Dupo, IL 3,879 5.3 mi
Sunset Hills 9,112 5.5 mi
Shrewsbury 6,316 5.9 mi
Arnold 20,956 6.1 mi
Columbia, IL 11,127 6.1 mi
Webster Groves 23,712 6.2 mi
Glendale 6,114 7.3 mi

More nearby: every ZIP code in St. Louis County · Missouri ZIP codes

Cite this page

zipcodes.pro. “Mehlville, MO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mo/mehlville

Underlying data is public domain or openly licensed — sources, vintages and licences.