ZIP code 57661: Whitehorse, SD
57661 is a ZIP code in Whitehorse, South Dakota, mainly in Dewey County. About 177 people live here.
- Population
- 177
- Median household income
- $55,000
- Typical home value
- —
- Median rent
- $616gross, per month
- Median age
- 29.8
- Homeowners
- 28.6%of occupied homes
Shaded: ZIP code 57661's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 57661 details
| City | Whitehorse |
|---|---|
| State | South Dakota |
| County | Dewey County |
| Metro area | Not in a metro or micro area |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 28.1 sq mi, plus 0.2 sq mi of water |
| Population density | 6 people per sq mi |
| Bachelor's degree or higher | 5.8% of adults 25+ |
| Average commute | 29.7 minutes |
| Center coordinates | 45.26651, -100.97756 |
ZIP codes near 57661
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 57630 | Glencross, SD | 8.0 mi | 11 |
| 57656 | Timber Lake, SD | 12.5 mi | 1,000 |
| 57652 | Ridgeview, SD | 16.9 mi | 265 |
| 57657 | Trail City, SD | 19.6 mi | 247 |
| 57625 | Eagle Butte, SD | 20.0 mi | 3,775 |
| 57636 | Lantry, SD | 27.7 mi | 104 |
| 57633 | Isabel, SD | 29.5 mi | 445 |
| 57639 | Little Eagle, SD | 29.7 mi | 290 |
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
About ZIP code 57661
What city is ZIP code 57661?
ZIP code 57661 is in Whitehorse, SD, in Dewey County.
What county is ZIP code 57661 in?
57661 is mainly in Dewey County, South Dakota.
What is the population of ZIP code 57661?
About 177 people live in ZIP code 57661, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 57661 in?
57661 is in Mountain Time (UTC−7). It observes daylight saving time.