Fairfax, SD ZIP code
The ZIP code for Fairfax, South Dakota is 57335. It is in Gregory County.
- Population in these ZIPs
- 303
- Avg. median income
- $92,800population-weighted
- Typical home value
- $125,600population-weighted
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Fairfax, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57335 | 303 | $92,813 | $125,600 |
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 Fairfax
- Pickstown 12 mi
- Bonesteel 12 mi
- Geddes 13 mi
- Lake Andes 13 mi
- Marty 16 mi
- Saint Charles 18 mi
- Herrick 21 mi
- Wagner 23 mi
- Armour 26 mi
- New Holland 26 mi
- Platte 27 mi
- Harrison 27 mi
Frequently asked questions
What is the ZIP code for Fairfax, SD?
The ZIP code for Fairfax, SD is 57335.
What county is Fairfax, South Dakota in?
Fairfax ZIP codes are in Gregory County.