ZIP code 57661
Where is ZIP code 57661?
Whitehorse, South Dakota
Dewey County · PO Box only ZIP code
ZIP code 57661 belongs to Whitehorse, South Dakota in Dewey County. 57661 is a PO Box only ZIP code: it is used for post office boxes at the Whitehorse post office, not for street addresses. It is in the Mountain Time zone and uses area code 605. About 177 people live in the 57661 area, where the median household income is $55,000. The closest ZIP codes are 57656 (Timber Lake, 11.1 mi northwest), 57630 (Glencross, 12.4 mi north) and 57652 (Ridgeview, 14.5 mi east).
| ZIP code | 57661 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Whitehorse |
| State | South Dakota (SD) |
| County | Dewey County |
| Time zone | Mountain Time · now |
| Area code | 605 |
| Coordinates | 45.2705, -100.8865 map |
| 3-digit prefix | 576 |
Population and income in 57661
| Population | 177 · lower than 85% of South Dakota ZIP codes |
|---|---|
| People per square mile | 6 · higher than 55% of South Dakota ZIP codes |
| Median age | 29.8 years · lower than 85% of South Dakota ZIP codes |
| Men / women | 56% / 44% |
| Median household income | $55,000 · lower than 86% of South Dakota ZIP codes |
| Income per person | $14,135 |
| Below the poverty line | 29% |
| Bachelor’s degree or higher | 5.8% of adults 25+ |
| Median rent | $616 a month |
| Housing units | 56 |
| Households | 56 (3.16 people on average) |
| Owners / renters | 29% / 71% |
| Land area | 28.09 sq mi (plus 0.19 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57661. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57661
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57656 | Timber Lake, SD | 11.1 mi NW | Standard |
| 57630 | Glencross, SD | 12.4 mi N | Standard |
| 57652 | Ridgeview, SD | 14.5 mi E | Standard |
| 57657 | Trail City, SD | 16 mi NE | Standard |
| 57625 | Eagle Butte, SD | 25.1 mi SW | Standard |
| 57633 | Isabel, SD | 28.2 mi W | Standard |
| 57639 | Little Eagle, SD | 28.3 mi N | PO Box only |
| 57601 | Mobridge, SD | 28.9 mi NE | Standard |
| 57642 | Mc Laughlin, SD | 30.9 mi N | Standard |
| 57636 | Lantry, SD | 31.9 mi SW | PO Box only |
| 57658 | Wakpala, SD | 34.3 mi NE | Standard |
| 57631 | Glenham, SD | 34.9 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57661 or measure the distance to another ZIP code.
How to address mail to 57661
PO BOX 123
WHITEHORSE SD 57661
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (57661-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57661?
- 57661 is a Whitehorse, South Dakota ZIP code.
- What county is 57661 in?
- ZIP code 57661 is in Dewey County, South Dakota.
- What time zone is ZIP code 57661 in?
- 57661 is in the Mountain Time zone (America/Denver).
- What area code is 57661?
- Phone numbers in ZIP code 57661 use area code 605.
- What is the population of ZIP code 57661?
- About 177 people live in ZIP code 57661, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57661?
- The median household income in 57661 is $55,000 a year, lower than 86% of South Dakota ZIP codes.
- Can I use 57661 for a street address?
- No. 57661 is only for PO Boxes. Street addresses in Whitehorse use another ZIP code.
- What ZIP codes are near 57661?
- The nearest ZIP codes to 57661 are 57656 (Timber Lake, 11.1 miles), 57630 (Glencross, 12.4 miles), 57652 (Ridgeview, 14.5 miles) and 57657 (Trail City, 16 miles).