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/MARLBOROUGH

Marlborough ZIP codes, Missouri

No ZIP code is named for Marlborough, MO; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 63123 and 63119. Its area codes are 314 and 557.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
2,157
Area codes
314, 557

NANPA lists no telephone rate centre for Marlborough 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.

Marlborough in numbers

About 2,157 people live in Marlborough, in 1,340 households. The median household income is $50,300 a year, 29% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $191,600 (17% below the Missouri median), and median gross rent is $990 a month. The median age is 32.3; 35.5% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 24 minutes.

Population2,157Marlborough2,157
Households1,340Marlborough1,340
Median age32.3Marlborough32.3Missouri39.0US 38.9
Median household income$50,300Marlborough$50,300Missouri$70,702US $80,734
Median home value$191,600Marlborough$191,600Missouri$230,300US $332,700
Median gross rent$990Marlborough$990Missouri$1,033US $1,413
Bachelor's degree or higher35.5%Marlborough35.5%Missouri32.4%US 35.7%
Mean commute23.5 minMarlborough23.5 minMissouri23.5 minUS 26.4 min
Population density9,502 / sq miMarlborough9,502 / sq mi

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

ZIP codes covering Marlborough

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

ZIP codes overlapping Marlborough
ZIP City Type Population Median income Median home
63119 Saint Louis , MO Standard 34,181 $106,183 $351,100
63123 Saint Louis , MO Standard 49,077 $77,055 $219,400

Map of Marlborough ZIP codes

6311963123

The ZIP codes of Marlborough, 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 Marlborough

The nearest larger towns are Shrewsbury (6,316 people, 1.4 mi), Affton (19,052 people, 1.4 mi) and Webster Groves (23,712 people, 1.5 mi).

Towns near Marlborough
TownPopulationDistance
Shrewsbury 6,316 1.4 mi
Affton 19,052 1.4 mi
Webster Groves 23,712 1.5 mi
Crestwood 12,295 2.2 mi
Glendale 6,114 2.9 mi
Green Park 2,690 3.1 mi
Maplewood 8,156 3.1 mi
Rock Hill 4,693 3.2 mi
Sappington 7,367 3.4 mi
Brentwood 8,144 3.6 mi
Lemay 16,228 3.8 mi
Concord 18,368 4.0 mi
Richmond Heights 9,153 4.3 mi
Kirkwood 29,363 4.5 mi

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

Cite this page

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

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