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/LEMAY

Lemay ZIP codes, Missouri

No ZIP code is named for Lemay, MO; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 63123 and 63125. Its area codes are 314 and 557.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
16,228
Area codes
314, 557

NANPA lists no telephone rate centre for Lemay itself, so these are the area codes of the nearest one, Mehlville (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Lemay in numbers

About 16,228 people live in Lemay, in 6,241 households. The median household income is $60,399 a year, 15% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $152,200 (34% below the Missouri median), and median gross rent is $881 a month. The median age is 36.7; 20.4% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 24 minutes.

Population16,228Lemay16,228
Households6,241Lemay6,241
Median age36.7Lemay36.7Missouri39.0US 38.9
Median household income$60,399Lemay$60,399Missouri$70,702US $80,734
Median home value$152,200Lemay$152,200Missouri$230,300US $332,700
Median gross rent$881Lemay$881Missouri$1,033US $1,413
Bachelor's degree or higher20.4%Lemay20.4%Missouri32.4%US 35.7%
Mean commute23.7 minLemay23.7 minMissouri23.5 minUS 26.4 min
Population density3,968 / sq miLemay3,968 / sq mi

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

ZIP codes covering Lemay

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

ZIP codes overlapping Lemay
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

Map of Lemay ZIP codes

The ZIP codes of Lemay, 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 Lemay

The nearest larger towns are Affton (19,052 people, 2.5 mi), Mehlville (29,805 people, 2.7 mi) and Concord (18,368 people, 3.9 mi).

Towns near Lemay
TownPopulationDistance
Affton 19,052 2.5 mi
Mehlville 29,805 2.7 mi
Green Park 2,690 2.9 mi
Dupo, IL 3,879 3.8 mi
Concord 18,368 3.9 mi
Shrewsbury 6,316 4.3 mi
Sappington 7,367 4.8 mi
Webster Groves 23,712 5.2 mi
Crestwood 12,295 5.3 mi
Maplewood 8,156 5.8 mi
Oakville 35,333 6.1 mi
Columbia, IL 11,127 6.4 mi
Glendale 6,114 6.7 mi
Sunset Hills 9,112 6.7 mi

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

Cite this page

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

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