Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/MO/COUNTY/WARREN

Warren County, MO ZIP codes

There are 8 ZIP codes in Warren County, MO, in 8 towns, from 63342 to 63390. The largest are 63383 (Warrenton), 63390 (Wright City) and 63357 (Marthasville). 1 more crosses into it from a neighbouring county: 65041.

The county seat is Warrenton.

ZIP codes
8
Partly in it
1 more
Towns
8
County seat
Warrenton
County FIPS
29219
Population
37,177
Median household income
$81,209
Land area
429 sq mi
Area code
636
Metro area
St. Louis

Warren County ZIP codes by town

Warrenton (county seat)
63383

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Warren County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Warren County.

Map of Warren County ZIP codes

6334263351633576337863380633816338363390

The ZIP codes of Warren County, 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.

Warren County in numbers

About 37,177 people live in Warren County, in 13,845 households, the 32nd most populous of Missouri's 115 counties. The median household income is $81,209 a year, 15% above the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $260,400 (13% above the Missouri median), and median gross rent is $995 a month. The median age is 40.8; 20.2% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 32 minutes.

Population37,177Warren37,177
Households13,845Warren13,845
Median age40.8Warren40.8Missouri39.0US 38.9
Median household income$81,209Warren$81,209Missouri$70,702US $80,734
Median home value$260,400Warren$260,400Missouri$230,300US $332,700
Median gross rent$995Warren$995Missouri$1,033US $1,413
Bachelor's degree or higher20.2%Warren20.2%Missouri32.4%US 35.7%
Mean commute31.6 minWarren31.6 minMissouri23.5 minUS 26.4 min
Population density87 / sq miWarren87 / sq mi

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

Largest towns in Warren County

Largest towns in Warren County
TownZIP codesPopulation
Warrenton 1 9,066
Wright City 1 5,240
Marthasville 1 2,328
Truesdale 1 990
Jonesburg 1 806
Truxton 1 28

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Warren County.

Not sure you are in Warren County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Warren County, with figures

ZIP codes in Warren County
ZIP City Type Population Median income Median home
63342 Dutzow , MO No street area — — —
63351 Jonesburg , MO Standard 1,389 $67,500 $207,100
63357 Marthasville , MO Standard 6,536 $92,200 $292,600
63378 Treloar , MO No street area — — —
63380 Truesdale , MO Standard 990 $58,750 $214,300
63381 Truxton , MO Standard 618 $111,890 $237,200
63383 Warrenton , MO Standard 16,927 $75,282 $243,100
63390 Wright City , MO Standard 10,970 $82,351 $268,200

Cite this page

zipcodes.pro. “Warren County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mo/county/warren

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