Fairfax ZIP code, South Dakota
The ZIP code for Fairfax, SD is 57335, and its area code is 605.
- USPS city name
- 1 ZIP code
- Population
- 119
- Area code
- 605
- County
- Gregory County
- State
- South Dakota
NANPA lists no telephone rate centre for Fairfax itself, so these are the area codes of the nearest one, Bonesteel (12.5 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Fairfax
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
57335 | Fairfax , SD | Standard | 303 | $92,813 | $125,600 |
Map of Fairfax ZIP codes
The ZIP codes of Fairfax, SD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Fairfax
The nearest larger towns are Bonesteel (286 people, 4.5 mi), Butte, NE (273 people, 8.2 mi) and Spencer, NE (312 people, 14 mi).
More nearby: every ZIP code in Gregory County · South Dakota ZIP codes
Cite this page
zipcodes.pro. “Fairfax, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/fairfax
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