Trail City ZIP code, South Dakota
The ZIP code for Trail City, SD is 57657, and its area code is 605.
- USPS city name
- 1 ZIP code
- Population
- 247
- Area code
- 605
- County
- Corson County
- State
- South Dakota
NANPA lists no telephone rate centre for Trail City itself, so these are the area codes of the nearest one, Timber Lake (16.6 miles). A town on an area-code boundary can differ from its neighbour.
Trail City in numbers
About 247 people live in Trail City, in 75 households. The median owner-occupied home is valued at $57,100 (78% below the South Dakota median).
| Population | 247 |
|---|---|
| Households | 75 |
| Median home value | $57,100 |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Trail City. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Trail City
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
57657 | Trail City , SD | Standard | 247 | — | $57,100 |
Map of Trail City ZIP codes
The ZIP codes of Trail City, 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 Trail City
The nearest larger towns are Little Eagle (275 people, 11 mi), Timber Lake (779 people, 15 mi) and Mobridge (2,932 people, 17 mi).
| Town | Population | Distance |
|---|---|---|
| Mobridge | 2,932 | 17.4 mi |
More nearby: every ZIP code in Corson County · South Dakota ZIP codes
Cite this page
zipcodes.pro. “Trail City, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/trail-city
Underlying data is public domain or openly licensed — sources, vintages and licences.