ZIP code 57620: Bison, SD
57620 is a ZIP code in Bison, South Dakota, mainly in Perkins County. About 564 people live here.
- Population
- 564
- Median household income
- $90,500
- Typical home value
- $162,300+6% in 12 months
- Median rent
- $932gross, per month
- Median age
- 43
- Homeowners
- 79.1%of occupied homes
Shaded: ZIP code 57620's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 57620 details
| City | Bison |
|---|---|
| State | South Dakota |
| County | Perkins 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 | 348.2 sq mi, plus 1.9 sq mi of water |
| Population density | 2 people per sq mi |
| Bachelor's degree or higher | 24% of adults 25+ |
| Average commute | 11.4 minutes |
| Center coordinates | 45.37726, -102.54021 |
Median rent in 57620 by bedrooms
| Size | Median gross rent |
|---|---|
| 2 bedrooms | $1,083/mo |
| 3 bedrooms | $1,063/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 57620
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 57649 | Prairie City, SD | 16.8 mi | 273 |
| 57644 | Meadow, SD | 22.7 mi | 388 |
| 57651 | Reva, SD | 24.9 mi | 191 |
| 57758 | Mud Butte, SD | 28.1 mi | 35 |
| 57640 | Lodgepole, SD | 28.2 mi | 41 |
| 57626 | Faith, SD | 31.8 mi | 979 |
| 57638 | Lemmon, SD | 37.2 mi | 1,852 |
| 57650 | Ralph, SD | 39.4 mi | 17 |
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
Buying a home in 57620?
A typical home in ZIP code 57620 is worth about $162,300 (Zillow Home Value Index). The median household here earns $90,500 a year. See what buying here would cost per month, with South Dakota average taxes and insurance filled in.
Monthly payment for a $162,300 homeWhat can a $90,500 income afford?Rental property numbers
About ZIP code 57620
What city is ZIP code 57620?
ZIP code 57620 is in Bison, SD, in Perkins County.
What county is ZIP code 57620 in?
57620 is mainly in Perkins County, South Dakota.
What is the population of ZIP code 57620?
About 564 people live in ZIP code 57620, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 57620 in?
57620 is in Mountain Time (UTC−7). It observes daylight saving time.