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/FRANKLIN

Franklin County, MO ZIP codes

There are 20 ZIP codes in Franklin County, MO, in 20 towns, from 63013 to 63090. The largest are 63090 (Washington), 63084 (Union) and 63069 (Pacific).

The county seat is Union.

ZIP codes
20
Towns
20
County seat
Union
County FIPS
29071
Population
105,950
Median household income
$73,165
Land area
923 sq mi
Area code
636
Metro area
St. Louis

Franklin County ZIP codes by town

Union (county seat)
63084

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.

Map of Franklin County ZIP codes

6301363014630156303763039630416305563056630606306163068630696307263073630776307963080630846308963090

The ZIP codes of Franklin 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.

Franklin County in numbers

About 105,950 people live in Franklin County, in 43,036 households, the 12th most populous of Missouri's 115 counties. The median household income is $73,165 a year, 3% above the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $227,600 (about the same as the Missouri median), and median gross rent is $893 a month. The median age is 41.8; 23.7% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 28 minutes.

Population105,950Franklin105,950
Households43,036Franklin43,036
Median age41.8Franklin41.8Missouri39.0US 38.9
Median household income$73,165Franklin$73,165Missouri$70,702US $80,734
Median home value$227,600Franklin$227,600Missouri$230,300US $332,700
Median gross rent$893Franklin$893Missouri$1,033US $1,413
Bachelor's degree or higher23.7%Franklin23.7%Missouri32.4%US 35.7%
Mean commute28.3 minFranklin28.3 minMissouri23.5 minUS 26.4 min
Population density115 / sq miFranklin115 / 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 Franklin County

Largest towns in Franklin County
TownZIP codesPopulation
Washington 1 15,130
Union 1 12,781
Pacific 1 7,475
Sullivan 1 6,310
St. Clair 1 4,789
Robertsville 1 3,469
New Haven 1 3,302
Gray Summit 1 2,991
Villa Ridge 1 2,835
Lonedell 1 2,192
Catawissa 1 1,939
Labadie 1 1,693
Gerald 1 1,368
Beaufort 1 1,136
Saint Albans 1 803

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 Franklin County.

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

Every ZIP code in Franklin County, with figures

ZIP codes in Franklin County
ZIP City Type Population Median income Median home
63013 Beaufort , MO Standard 1,136 $99,337 $290,700
63014 Berger , MO Standard 426 $61,842 $148,600
63015 Catawissa , MO Standard 1,939 $88,750 $237,000
63037 Gerald , MO Standard 2,970 $50,203 $177,500
63039 Gray Summit , MO Standard 986 $70,329 $183,000
63041 Grubville , MO Standard 309 $68,750 $396,900
63055 Labadie , MO Standard 1,693 $79,125 $278,600
63056 Leslie , MO Standard 1,896 $75,517 $211,300
63060 Lonedell , MO Standard 2,192 $54,926 $179,500
63061 Luebbering , MO Standard 216 $99,405 $255,000
63068 New Haven , MO Standard 6,202 $79,632 $226,300
63069 Pacific , MO Standard 15,697 $78,185 $292,100
63072 Robertsville , MO Standard 3,469 $80,333 $240,700
63073 Saint Albans , MO Standard 803 $250,000+ $811,100
63077 Saint Clair , MO Standard 11,391 $56,281 $178,200
63079 Stanton , MO Standard 60 — —
63080 Sullivan , MO Standard 13,124 $66,541 $182,700
63084 Union , MO Standard 20,708 $75,992 $226,900
63089 Villa Ridge , MO Standard 5,662 $72,731 $212,300
63090 Washington , MO Standard 23,258 $85,025 $273,600

Cite this page

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

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