Bison ZIP Code List — Perkins County, SD

There is one unique ZIP code in Bison, South Dakota and it is 57620. Area code: 605.
1
ZIP codes
348.17
sq mi land
1.89
sq mi water
605
area code
Bison, SD ZIP code map

About Bison, SD

Bison is a small town located in Perkins County, South Dakota, characterized by its picturesque landscapes and small-town charm. This quaint community offers a peaceful retreat with its vast open spaces and friendly atmosphere. As the central hub of the area, Bison serves as an essential point for local agriculture and serves residents with pride.

Location & geography

Bison, South Dakota, is situated in the northwestern part of the state, surrounded by rolling hills and expansive prairies. The town is approximately 40 miles southwest of the city of Aberdeen and about 55 miles northeast of Spearfish, making it accessible to these larger urban centers. Covering a total land area of 348.17 square miles and a water area of 1.89 square miles, the region features a predominantly dry landscape punctuated by scattered bodies of water.

Community & economy

The community of Bison is known for its tight-knit feel and a population that comes together for various local events and traditions. With agriculture as its primary industry, residents are often involved in farming and ranching, contributing to the town's robust economy. Daily life in Bison is marked by a slower pace, where neighbors know each other, and local businesses thrive on support from the community.

Transportation

Bison is accessible via South Dakota Highway 34, which connects the town to other nearby localities and facilitates commute and travel. The nearest major airport is the Aberdeen Regional Airport, located about 40 miles to the east, providing essential air travel services to the residents and visitors. Public transportation options within the town are limited, emphasizing the reliance on personal vehicles for most residents.

History

Bison was established in the late 19th century and has since grown as a significant agricultural center in Perkins County. Throughout its history, the town has maintained a strong focus on farming and ranching, serving the local economy through these industries. Notable events include the annual Bison Rodeo, which showcases the rich cowboy culture of the area and draws visitors from various regions.

Did you know?

One surprising fact about Bison is that it gets its name from the American bison that once roamed the area freely before their populations dwindled due to overhunting. Additionally, the town is home to the Perkins County Fair, which celebrates local agriculture and community spirit each summer.

ZIP codes for Bison, SD (1)
ZIP code City County Map
57620 Bison Perkins View map

Demographics & statistics

606
Population
45.6
Median age
$70,000
Median household income
$37,025
Per capita income
$93,300
Median home value
$944
Median monthly rent
77.6%
Home ownership
4.1%
Poverty rate
0.0%
Unemployment
273
Housing units
21.0%
Bachelor's or higher

Age distribution

Male Female
38
Under 5
35
24
5–9
21
15
10–14
13
8
15–19
8
6
20–24
5
25
25–34
23
37
35–44
34
54
45–54
48
27
55–59
25
16
60–64
14
34
65–74
30
27
75–84
24
8
85+
7
← Male
Female →

Age summary

GroupCount%
Under 1816026.4%
18 and over44673.6%
65 and over13021.5%
Median age45.6 years

Race & ethnicity

White 96.7%
Two or more races 2%
Hispanic or Latino 0.7%
Other race 0.7%
GroupCount%
White59096.7%
Two or more races122%
Hispanic or Latino40.7%
Other race40.7%

Household income

Under $10k 2.2%
$10k–$15k 1.5%
$15k–$25k 5.2%
$25k–$35k 6.3%
$35k–$50k 17.2%
$50k–$75k 22.4%
$75k–$100k 19.8%
$100k–$150k 14.2%
$150k–$200k 6.7%
$200k+ 4.5%
Range% of households
Under $10k2.2%
$10k–$15k1.5%
$15k–$25k5.2%
$25k–$35k6.3%
$35k–$50k17.2%
$50k–$75k22.4%
$75k–$100k19.8%
$100k–$150k14.2%
$150k–$200k6.7%
$200k+4.5%
Median income$70,000

Housing

Home values

Under $50k 31.7%
$50k–$100k 20.2%
$100k–$150k 14.4%
$150k–$200k 8.2%
$200k–$300k 17.3%
$300k–$500k 5.3%
$500k–$1M 2.9%

Housing overview

MetricValue
Median home value$93,300
Median rent / month$944
Owner occupied77.6%
Renter occupied22.4%
Vacant19.5%
Single-family detached73.9%
Large apartment buildings0.9%
Mobile homes15.0%
Median rooms5.6
Avg household size (owned)2.41

Year built

Era%
2020 or later0.0%
2010–20196.0%
2000–20097.5%
1990–19993.0%
1980–19896.6%
1970–197915.0%
1960–196914.1%
1950–19597.8%
1940–19493.6%
1939 or earlier36.3%

Bedrooms

Size% of units
No bedroom (studio)4.8%
1 bedroom8.7%
2 bedrooms27.6%
3 bedrooms35.7%
4 bedrooms10.2%
5+ bedrooms12.9%

Vehicles per household

Vehicles% of households
No vehicle1.5%
1 vehicle17.2%
2 vehicles34.0%
3 or more47.4%

Heating fuel

Fuel type%
Utility gas3.0%
Electricity50.0%
Propane / LP gas45.5%
Wood0.7%
No fuel used0.4%

Households & families

Household typeCount%
Married-couple family17766.0%
Cohabiting couple41.5%
Male householder, no spouse4215.7%
Female householder, no spouse4516.8%
Households with children under 187628.4%
Households with seniors (65+)8732.5%
Average household size2.26

Marital status

StatusMaleFemale
Never married16.2%8.9%
Married75.7%74.7%
Separated0.0%7.1%
Widowed3.8%4.0%
Divorced4.3%5.3%

Education

Less than 9th grade 1.4%
Some HS, no diploma 2.5%
HS graduate 37.2%
Some college, no degree 28.6%
Associate's degree 9.2%
Bachelor's degree 18.0%
Graduate / professional 3.0%
Metric%
HS diploma or higher96.1%
Bachelor's or higher21.0%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool2118.8%
Kindergarten98.0%
Elementary school5448.2%
High school2219.6%
College / grad school65.4%

Employment

Industry of employment

Agriculture & mining 19.8%
Education & healthcare 15.4%
Construction 10.7%
Professional & management 9.1%
Retail trade 8.8%
Transportation & utilities 8.2%
Other services 6.6%
Finance & real estate 5.3%
Arts, food & hospitality 5.3%
Public administration 5.0%
Information 4.7%
Wholesale trade 0.9%

Occupation

Category%
Management, business & arts40.9%
Service12.6%
Sales & office17.9%
Natural resources & construction18.9%
Production & transportation9.7%

Employment type

Type%
Private sector45.3%
Government21.7%
Self-employed33.0%
Unpaid family workers0.0%

Commute

Method%
Drive alone64.8%
Carpool2.5%
Public transit0.6%
Walk5.3%
Other means2.2%
Avg commute (minutes)10.9

Poverty

All people 4.1%
Under 18 years 5.0%
18 and over 3.8%
Married-couple families 2.8%
Female-led households 0.0%

Income support

Source% of households
Social Security33.6%
Retirement income19.8%
Supplemental Security1.1%
Cash public assistance0.0%
Food stamps / SNAP0.7%

Health indicators

Condition%
High blood pressure36.3%
High cholesterol33.4%
Heart disease9.2%
Stroke4.0%
Asthma8.8%
Arthritis29.4%
Kidney disease3.7%
Pulmonary disease7.3%
Cancer9.3%
Behavior / access%
Binge drinking16.5%
No physical activity24.2%
Less than 7 hrs sleep29.3%
Fair or poor health13.0%
Poor mental health9.8%
Poor physical health10.0%
No health insurance11.3%
Visited doctor (checkup)76.4%
Visited dentist68.1%
Cholesterol screening90.9%
Teeth loss14.6%

Veterans & disability

VeteransCount%
Civilian veterans235.2%
Disability%
Any disability8.6%
Under 180.0%
18–64 years5.1%
65 and over27.7%

Health insurance coverage

Type%
Private insurance84.8%
Public insurance29.9%
Uninsured under 193.7%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only53388.0%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)606100.0%
Born in same state606100.0%
Born in different state24941.1%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Polish18430.4%
Arab8514%
French457.4%
AncestryCount%
Italian447.3%
English172.8%

Technology access

Metric% of households
Computer access44.2%
Internet access92.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions
What is the ZIP code for Bison, SD?
Bison, SD has one ZIP code: 57620.
What is the main ZIP code for Bison, SD?
The primary ZIP code for Bison, SD is 57620. The city uses area code 605 for phone service.
What county is Bison, SD in?
Bison is located in Perkins County, South Dakota.
How many ZIP codes are in Bison, SD?
Bison, SD has 1 ZIP code.
What ZIP code should I use for mailing packages to businesses in downtown Bison, SD?
Downtown Bison businesses operate under the ZIP code 57620, which serves the entire Bison area in Perkins County.
If I'm sending mail to a residence in Bison, SD, what is the correct ZIP code to use?
All residential addresses in Bison, SD use the ZIP code 57620, as it is the single ZIP code covering the city.
Need the complete South Dakota ZIP code database? Download all SD ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →