Residential delivery area · South Dakota
ZIP Code 57620: Bison, SD
ZIP code 57620 uses the postal name Bison, South Dakota and lies entirely in Perkins County (Census 2020 ZIP-county file). About 560 people live there (Census Bureau, ACS 2020-2024). Median household income is $90,500 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Bison; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Bison · its only residential ZIP
- County
- Perkins County
- Census places
- Bison
- House district
- SD at large 119th Congress
- State
- South Dakota
- Time zone
- Mountain
- Land area
- 348.2 sq mi · 2 people per sq mi
Where is ZIP code 57620?
57620 centers on 45.377°, -102.540° and covers 348.2 square miles of land plus 1.9 of water. It borders 5 ZIP codes: 57649, 57644, 57640, 57626, 57638.
The map draws ZIP code areas only. For the streets inside 57620, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 57620 compare with the rest of Perkins County?
| Measure | 57620 | In Perkins County | In SD |
|---|---|---|---|
| People (ACS 2020-2024) | 564 | 4th of 9 | 196th of 375 |
| Median household income | $91k | not ranked | not ranked |
| Median home value | $106k | not ranked | not ranked |
57620's income and home value are not ranked: it has fewer than 1,000 residents (564). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 5% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 57620?
The 2020 Census counted 445 people in 57620; the ACS, which samples households over 2020-2024, estimates 564. Between the 2010 and 2020 censuses its population fell 13.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 564±122 (90% margin)
- 2020 Census count
- 445−13.6% since 2010 (515)
- Households
- 244
- Median age
- 43.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 57620?
Of the 564 people the ACS estimates in 57620, 28.2% are under 18 and 22.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.3%).
- Under 1828.2%
- 18 to 6449.5%
- 65 and older22.3%
- White, not Hispanic96.3%
- Other or two or more3.7%
- Hispanic or Latino0.0%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 57620 earn?
Median household income is $90,500 (ACS 2020-2024). It is not measurably different from 2015-2019 ($73,737 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $90,500±$34,766
- Income per person
- $43,062
- Below the poverty line
- 6.7%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 24.0%
- Adjusted gross income per tax return, 2022
- $65,791220 returns; wages 57% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 57620?
- Median home value (owners' estimate)
- $106,300
- Median gross rent
- $932
- Homes owned by their occupants
- 79.1%
- Housing units
- 319
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 57620?
26 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in finance and insurance (ZIP Code Business Patterns).
- Finance and insurance6
- Retail trade4
- Health care and social assistance3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 57620?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 57649 | Prairie City | 273 | $85k | 16.8 mi |
| 57644 | Meadow | 388 | $68k | 22.7 mi |
| 57640 | Lodgepole | 41 | $250k+ | 28.2 mi |
| 57626 | Faith | 979 | $68k | 31.8 mi |
| 57638 | Lemmon | 1,852 | $59k | 37.2 mi |
| 57651 | Reva | 191 | $95k | 24.9 mi (near) |
| 57758 | Mud Butte | 35 | – | 28.1 mi (near) |
| 57650 | Ralph | 17 | – | 39.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.