ZIP code 57620
Where is ZIP code 57620?
Bison, South Dakota
Perkins County · Standard ZIP code
ZIP code 57620 belongs to Bison, South Dakota in Perkins County. 57620 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Mountain Time zone and uses area code 605. About 564 people live in the 57620 area, where the median household income is $90,500. The closest ZIP codes are 57644 (Meadow, 14.8 mi southeast), 57649 (Prairie City, 16.4 mi west) and 57640 (Lodgepole, 25.1 mi northwest).
| ZIP code | 57620 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Bison |
| State | South Dakota (SD) |
| County | Perkins County |
| Time zone | Mountain Time · now |
| Area code | 605 |
| Coordinates | 45.5161, -102.4827 map |
| 3-digit prefix | 576 |
Population and income in 57620
| Population | 564 · lower than 53% of South Dakota ZIP codes |
|---|---|
| People per square mile | 2 · lower than 76% of South Dakota ZIP codes |
| Median age | 43 years · higher than 57% of South Dakota ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $90,500 · higher than 79% of South Dakota ZIP codes |
| Income per person | $43,062 |
| Below the poverty line | 6.7% |
| Bachelor’s degree or higher | 24% of adults 25+ |
| Median home value | $106,300 · lower than 82% of South Dakota ZIP codes |
| Median rent | $932 a month |
| Housing units | 319 |
| Households | 244 (2.31 people on average) |
| Owners / renters | 79% / 21% |
| Land area | 348.17 sq mi (plus 1.89 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 57620. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 57620
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 57644 | Meadow, SD | 14.8 mi SE | Standard |
| 57649 | Prairie City, SD | 16.4 mi W | Standard |
| 57640 | Lodgepole, SD | 25.1 mi NW | Standard |
| 57651 | Reva, SD | 28.4 mi W | Standard |
| 57638 | Lemmon, SD | 31 mi NE | Standard |
| 57634 | Keldron, SD | 33.2 mi NE | Standard |
| 57650 | Ralph, SD | 35.5 mi NW | Standard |
| 57758 | Mud Butte, SD | 37 mi SW | Standard |
| 58639 | Hettinger, ND | 40.2 mi N | Standard |
| 57626 | Faith, SD | 41.7 mi SE | Standard |
| 58649 | Reeder, ND | 46.7 mi NW | Standard |
| 57645 | Morristown, SD | 46.8 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 57620 or measure the distance to another ZIP code.
How to address mail to 57620
123 MAIN ST
BISON SD 57620
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Ada, Bixby, Cash, Chance and Govert: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (57620-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 57620?
- 57620 is a Bison, South Dakota ZIP code.
- What county is 57620 in?
- ZIP code 57620 is in Perkins County, South Dakota.
- What time zone is ZIP code 57620 in?
- 57620 is in the Mountain Time zone (America/Denver).
- What area code is 57620?
- Phone numbers in ZIP code 57620 use area code 605.
- What is the population of ZIP code 57620?
- About 564 people live in ZIP code 57620, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 57620?
- The median household income in 57620 is $90,500 a year, higher than 79% of South Dakota ZIP codes.
- What ZIP codes are near 57620?
- The nearest ZIP codes to 57620 are 57644 (Meadow, 14.8 miles), 57649 (Prairie City, 16.4 miles), 57640 (Lodgepole, 25.1 miles) and 57651 (Reva, 28.4 miles).