Buffalo, SD ZIP code
The ZIP code for Buffalo, South Dakota is 57720. It is in Harding County.
- Population in these ZIPs
- 518
- Avg. median income
- $79,100population-weighted
- Typical home value
- $189,000population-weighted
Loading map…
Click anywhere on the map to see which ZIP code it's in.
Buffalo, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57720 | 518 | $79,091 | $189,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Buffalo
- Camp Crook 20 mi
- Ludlow 26 mi
- Reva 27 mi
- Ralph 33 mi
- Prairie City 36 mi
- Belle Fourche 44 mi
- Lodgepole 45 mi
- Newell 46 mi
- Bison 52 mi
- Nisland 54 mi
- Mud Butte 56 mi
- Vale 66 mi
Frequently asked questions
What is the ZIP code for Buffalo, SD?
The ZIP code for Buffalo, SD is 57720.
What county is Buffalo, South Dakota in?
Buffalo ZIP codes are in Harding County.