County ZIP codes · Nebraska · FIPS 31019
Buffalo County, NE ZIP Codes
Buffalo County, Nebraska has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 14 residential and 1 for PO boxes or a single organization. 12 of the residential ones lie mainly in Buffalo County and 2 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $65,208 in 68869 (Ravenna) to $94,792 in 68866 (Pleasanton) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Buffalo 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 $73,818 and $86,806.
They carry 12 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 14 residential ZIP codes in Buffalo County
12 ZIP codes lie mainly in Buffalo County; 2 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 68845 | Kearney | 20,536 | 166 | $77k | $282k | 79% |
| 68847 | Kearney | 18,354 | 167 | $74k | $238k | 80% |
| 68840 | Gibbon | 2,624 | 17 | $76k | $208k | 88% |
| 68869 | Ravenna | 2,165 | 10 | $65k | $169k | 73% |
| 68876 | Shelton | 1,910 | 21 | $82k | $164k | 72% |
| 68836 | Elm Creek | 1,908 | 13 | $87k | $225k | 53% |
| 68849 | Kearney | 1,385 | 6,295 | – | – | 100% |
| 68866 | Pleasanton | 1,168 | 11 | $95k | $262k | 94% |
| 68812 | Amherst | 642 | 5 | $70k | $229k | 100% |
| 68870 | Riverdale | 506 | 11 | $87k | $222k | 100% |
| 68858 | Miller | 328 | 5 | $82k | $191k | 96% |
| 68861 | Odessa | 138 | 157 | $40k | $140k | 100% |
Partly in Buffalo 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?
10 ZIP codes of Buffalo County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Buffalo | Elsewhere |
|---|---|---|
| 68845 | 79% | Kearney County12%; Phelps County9% |
| 68847 | 80% | Kearney County20% |
| 68840 | 88% | Kearney County12% |
| 68869 | 73% | Sherman County27% |
| 68876 | 72% | Hall County28% |
| 68836 | 53% | Phelps County33%; Dawson County15% |
| 68866 | 94% | Custer County6% |
| 68956 | 2% | Adams County71%; Kearney County20%; Hall County7% |
| 68844 | 36% | Sherman County64% |
| 68858 | 96% | Custer County4% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 68848 | Kearney |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Buffalo County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Buffalo County's ZIP codes use 2 prefixes: 688 and 689.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.