ZIP code 57631
Where is ZIP code 57631?
Glenham, South Dakota
Walworth County · Standard ZIP code
ZIP code 57631 belongs to Glenham, South Dakota in Walworth County. 57631 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 605. About 364 people live in the 57631 area, where the median household income is $56,827. The closest ZIP codes are 57601 (Mobridge, 7.8 mi west), 57472 (Selby, 11.2 mi east) and 57646 (Mound City, 14.7 mi northeast).
| ZIP code | 57631 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Glenham |
| State | South Dakota (SD) |
| County | Walworth County |
| Time zone | Central Time · now |
| Area code | 605 |
| Coordinates | 45.5335, -100.2716 map |
| 3-digit prefix | 576 |
Population and income in 57631
| Population | 364 · lower than 65% of South Dakota ZIP codes |
|---|---|
| People per square mile | 3 · lower than 65% of South Dakota ZIP codes |
| Median age | 60.7 years · higher than 95% of South Dakota ZIP codes |
| Men / women | 46% / 54% |
| Median household income | $56,827 · lower than 84% of South Dakota ZIP codes |
| Income per person | $52,384 |
| Below the poverty line | 0.5% |
| Bachelor’s degree or higher | 22% of adults 25+ |
| Median home value | $162,500 · lower than 56% of South Dakota ZIP codes |
| Housing units | 296 |
| Households | 207 (1.76 people on average) |
| Owners / renters | 90% / 9.7% |
| Land area | 130.04 sq mi (plus 19.62 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57631. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57631
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57601 | Mobridge, SD | 7.8 mi W | Standard |
| 57472 | Selby, SD | 11.2 mi E | Standard |
| 57646 | Mound City, SD | 14.7 mi NE | Standard |
| 57420 | Akaska, SD | 15.8 mi SE | PO Box only |
| 57658 | Wakpala, SD | 17.1 mi NW | Standard |
| 57657 | Trail City, SD | 22.4 mi W | Standard |
| 57452 | Java, SD | 22.5 mi E | Standard |
| 57632 | Herreid, SD | 24.1 mi NE | Standard |
| 57648 | Pollock, SD | 24.6 mi N | Standard |
| 57639 | Little Eagle, SD | 27.6 mi W | PO Box only |
| 57652 | Ridgeview, SD | 28 mi SW | Standard |
| 57428 | Bowdle, SD | 30.4 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57631 or measure the distance to another ZIP code.
How to address mail to 57631
123 MAIN ST
GLENHAM SD 57631
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (57631-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57631?
- 57631 is a Glenham, South Dakota ZIP code.
- What county is 57631 in?
- ZIP code 57631 is in Walworth County, South Dakota.
- What time zone is ZIP code 57631 in?
- 57631 is in the Central Time zone (America/Chicago).
- What area code is 57631?
- Phone numbers in ZIP code 57631 use area code 605.
- What is the population of ZIP code 57631?
- About 364 people live in ZIP code 57631, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57631?
- The median household income in 57631 is $56,827 a year, lower than 84% of South Dakota ZIP codes.
- What ZIP codes are near 57631?
- The nearest ZIP codes to 57631 are 57601 (Mobridge, 7.8 miles), 57472 (Selby, 11.2 miles), 57646 (Mound City, 14.7 miles) and 57420 (Akaska, 15.8 miles).