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County ZIP codes · Missouri · FIPS 29007

Audrain County, MO ZIP Codes

Audrain County, Missouri has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 9 of the residential ones lie mainly in Audrain County and 5 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $54,485 in 63352 (Laddonia) to $97,434 in 65284 (Sturgeon) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Audrain County?

63345 · Farber: $44k63352 · Laddonia: $55k63359 · Middletown: $75k63382 · Vandalia: $61k63384 · Wellsville: $78k65231 · Auxvasse: $57k65232 · Benton City: $84k65240 · Centralia: $72k65243 · Clark: $68k65264 · Martinsburg: $46k65265 · Mexico: $57k65280 · Rush Hill: $93k65284 · Sturgeon: $97k65285 · Thompson: $99k652656524063359652436523163382633526338465284652856526465280652326334563345 · Farber: $44k63352 · Laddonia: $55k63359 · Middletown: $75k63382 · Vandalia: $61k63384 · Wellsville: $78k65231 · Auxvasse: $57k65232 · Benton City: $84k65240 · Centralia: $72k65243 · Clark: $68k65264 · Martinsburg: $46k65265 · Mexico: $57k65280 · Rush Hill: $93k65284 · Sturgeon: $97k65285 · Thompson: $99k6526565240633596524365231633826335263384652846528565264652326334563345 · Farber: $44k63352 · Laddonia: $55k63359 · Middletown: $75k63382 · Vandalia: $61k63384 · Wellsville: $78k65231 · Auxvasse: $57k65232 · Benton City: $84k65240 · Centralia: $72k65243 · Clark: $68k65264 · Martinsburg: $46k65265 · Mexico: $57k65280 · Rush Hill: $93k65284 · Sturgeon: $97k65285 · Thompson: $99k652656524063359652436523163382633526338465284
The residential ZIP codes of Audrain County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $56,969 and $71,707.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 14 residential ZIP codes in Audrain County

9 ZIP codes lie mainly in Audrain County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Audrain County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
65265 Mexico 15,153 68 $57k $153k 94%
65240 Centralia 8,830 49 $72k $199k 59%
63382 Vandalia 4,033 32 $61k $96k 48%
63352 Laddonia 1,018 10 $55k $98k 90%
65264 Martinsburg 919 15 $46k $105k 71%
65285 Thompson 523 9 $99k $221k 100%
63345 Farber 291 15 $44k $80k 100%
65232 Benton City 256 11 $84k $163k 100%
65280 Rush Hill 121 6 $93k – 100%

Partly in Audrain County

Residential ZIP codes mainly in another county that reach at least 1% into Audrain County, by their share here
In this county
65243 Clark 2,950 30 $68k $208k 24%
65284 Sturgeon 2,316 38 $97k $217k 14%
63384 Wellsville 2,049 25 $78k $129k 13%
63359 Middletown 1,667 11 $75k $160k 8%
65231 Auxvasse 3,132 25 $57k $147k 3%

Download the 14 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

10 ZIP codes of Audrain County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Audrain County and in the neighboring counties
ZIPIn AudrainElsewhere
6526594%Monroe County 6%
6524059%Boone County 37%; Monroe County 3%; Callaway County 1%
6338248%Ralls County 41%; Pike County 11%
652313%Callaway County 98%
6524324%Randolph County 42%; Boone County 26%; Howard County 5%; Monroe County 3%
6528414%Boone County 86%
6338413%Montgomery County 82%; Callaway County 4%
633598%Pike County 53%; Montgomery County 36%; Lincoln County 3%
6335290%Ralls County 10%
6526471%Callaway County 24%; Montgomery County 5%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Audrain County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Audrain County's ZIP codes use 2 prefixes: 633 and 652.

Three-digit prefixes of Audrain County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Audrain County's
PrefixSectional centerHereAll codes
633 St Louis, MO (SCF 630) 5 51
652 Mid-Missouri, MO (SCF 650) 9 52

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.