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County ZIP codes · Missouri · FIPS 29151

Osage County, MO ZIP Codes

Osage County, Missouri has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Osage County and 8 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $61,938 in 65014 (Bland) to $78,750 in 65016 (Bonnots Mill) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Osage County?

65001 · Argyle: $81k65013 · Belle: $57k65014 · Bland: $62k65016 · Bonnots Mill: $79k65024 · Chamois: $68k65035 · Freeburg: $91k65048 · Koeltztown: $89k65051 · Linn: $53k65054 · Loose Creek: –65058 · Meta: $72k65061 · Morrison: $56k65062 · Mount Sterling: –65076 · Saint Thomas: $64k65085 · Westphalia: $104k65101 · Jefferson City: $75k65582 · Vienna: $60k6510165014655826505165058650246501365085650616503565016650016504865054650766506265001 · Argyle: $81k65013 · Belle: $57k65014 · Bland: $62k65016 · Bonnots Mill: $79k65024 · Chamois: $68k65035 · Freeburg: $91k65048 · Koeltztown: $89k65051 · Linn: $53k65054 · Loose Creek: –65058 · Meta: $72k65061 · Morrison: $56k65062 · Mount Sterling: –65076 · Saint Thomas: $64k65085 · Westphalia: $104k65101 · Jefferson City: $75k65582 · Vienna: $60k65101650146558265051650586502465013650856506165035650166500165048650546507665001 · Argyle: $81k65013 · Belle: $57k65014 · Bland: $62k65016 · Bonnots Mill: $79k65024 · Chamois: $68k65035 · Freeburg: $91k65048 · Koeltztown: $89k65051 · Linn: $53k65054 · Loose Creek: –65058 · Meta: $72k65061 · Morrison: $56k65062 · Mount Sterling: –65076 · Saint Thomas: $64k65085 · Westphalia: $104k65101 · Jefferson City: $75k65582 · Vienna: $60k6510165014655826505165058650246501365085650616503565016650016505465076
The residential ZIP codes of Osage 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?

They carry 16 postal town names.

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

All 16 residential ZIP codes in Osage County

8 ZIP codes lie mainly in Osage County; 8 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Osage County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
65051 Linn 4,487 35 $53k $191k 99%
65035 Freeburg 1,681 23 $91k $237k 100%
65016 Bonnots Mill 1,240 24 $79k $269k 100%
65024 Chamois 1,218 12 $68k $162k 100%
65085 Westphalia 1,193 21 $104k $291k 100%
65054 Loose Creek 893 43 – $201k 100%
65048 Koeltztown 194 9 $89k $370k 100%
65062 Mount Sterling 20 5 – – 65%

Partly in Osage County

Residential ZIP codes mainly in another county that reach at least 1% into Osage County, by their share here
In this county
65061 Morrison 681 13 $56k $125k 48%
65013 Belle 3,137 24 $57k $217k 39%
65076 Saint Thomas 515 20 $64k $215k 33%
65014 Bland 2,245 16 $62k $156k 27%
65001 Argyle 159 7 $81k $205k 27%
65058 Meta 1,274 13 $72k $243k 19%
65101 Jefferson City 28,793 220 $75k $244k 5%
65582 Vienna 1,732 14 $60k $173k 3%

Download the 16 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 Osage County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Osage County and in the neighboring counties
ZIPIn OsageElsewhere
651015%Cole County 91%; Callaway County 4%
6505199%
6501339%Maries County 61%
6501427%Gasconade County 69%; Maries County 3%
655823%Maries County 97%
6505819%Maries County 69%; Miller County 12%
6506148%Gasconade County 52%
6507633%Cole County 67%
6500127%Maries County 73%
6506265%Gasconade County 35%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Osage County's ZIP codes use 3 prefixes: 650, 651 and 655.

Three-digit prefixes of Osage 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 Osage County's
PrefixSectional centerHereAll codes
650 Mid-Missouri, MO (SCF 650) 14 58
651 Mid-Missouri, MO (SCF 650) 1 11
655 Springfield, MO (SCF 656) 1 33

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