County ZIP codes · Missouri · FIPS 29011
Barton County, MO ZIP Codes
Barton County, Missouri has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 8 residential and 1 for PO boxes or a single organization. 4 of the residential ones lie mainly in Barton County and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $50,000 in 64759 (Lamar) to $90,500 in 64855 (Oronogo) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Barton County?
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 $50,865 and $77,643.
They carry 8 postal town names: Lamar, Oronogo, Jasper, Liberal, Sheldon, Asbury, Golden City, Mindenmines.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 8 residential ZIP codes in Barton County
4 ZIP codes lie mainly in Barton County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 64759 | Lamar | 8,310 | 31 | $50k | $149k | 99% |
| 64762 | Liberal | 1,379 | 11 | $59k | $109k | 100% |
| 64748 | Golden City | 1,105 | 10 | $51k | $121k | 46% |
| 64769 | Mindenmines | 459 | 11 | $28k | $49k | 100% |
Partly in Barton County
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?
6 ZIP codes of Barton County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Barton | Elsewhere |
|---|---|---|
| 64759 | 99% | Dade County 1% |
| 64855 | 13% | Jasper County 87% |
| 64755 | 35% | Jasper County 65% |
| 64784 | 24% | Vernon County 74%; Cedar County 2% |
| 64832 | 40% | Jasper County 60% |
| 64748 | 46% | Dade County 29%; Jasper County 19%; Lawrence County 7% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 64766 | Milford |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Barton County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Barton County's ZIP codes use 2 prefixes: 647 and 648.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.