County

Dewey County, SD

7 ZIP codes  ·  7 cities  ·  South Dakota

👥5,805Population
💰$53,922Median HH Income▼ 29% below avg
🎂28.7Median Age
🏠$75,566Median Home Value▼ 73% below avg
🎓29.4%College Grads▼ 24% below avg
📊18.3%Unemployment▲ 273% above avg
People & Population (ACS 2023 — weighted avg)
♂ Male 50.1% Female 50.0% ♀

Race & Ethnicity

White: 24.3%Hispanic: 2%Black: 0.4%Asian: 0.3%Other: 3.4%Race
White24.3%
Hispanic2.0%
Black0.4%
Asian0.3%
Other3.4%

Age Breakdown

Under 5
11%
5–17
25%
18–24
9%
25–44
25%
45–64
20%
65+
5%

Key Indicators

Median Age28.7 yrs
Avg HH Size3.15
Below Poverty31.4% ▲ 214% above avg
College Grads29.4% ▼ 24% below avg
Unemployment18.3% ▲ 273% above avg
No HS Diploma2 (0.1%)
HS Graduate1,050 (37.6%)
Some College382 (13.7%)
Associates509 (18.3%)
Bachelors338 (12.1%)
Graduate Degree508 (18.2%)

Education

No HS: 0.1%HS Grad: 37.6%Some College: 13.7%Associates: 18.3%Bachelors: 12.1%Graduate: 18.2%Edu
No HS0.1%
HS Grad37.6%
Some College13.7%
Associates18.3%
Bachelors12.1%
Graduate18.2%
Housing & Income

Housing Tenure

Owner: 58.9%Renter: 41.1%Tenure
Owner58.9%
Renter41.1%

Home Value Distribution

Under $50k
35%
$50k–$100k
23%
$100k–$150k
18%
$150k–$200k
5%
$200k–$300k
11%
$300k–$500k
5%
Over $500k
2%

Financials

Median HH Income$53,922 ▼ 29% below avg
Median Home Value$75,565 ▼ 73% below avg
Home/Income Ratio1.4x (nat avg ~3.5x)
Median Rent$677/mo
Total Housing Units2,151
Vacant Units288

Income Distribution

Under $25k
25%
$25k–$50k
16%
$50k–$75k
20%
$75k–$100k
12%
$100k–$150k
15%
$150k–$200k
5%
Over $200k
6%
Employment & Commute

How People Get to Work

Drove Alone
77%
Public Transit
1%
Walked
2%
Work From Home
20%

Commute Time

Under 15 min
69%
15–30 min
13%
30–45 min
9%
Over 45 min
9%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
9%
1960s–1970s
18%
1980s–1990s
15%
2000+
54%
About Dewey County, SD

Dewey County is located in South Dakota and encompasses 7 ZIP codes spanning 7 cities and communities. The county has an estimated population of 5,805 residents. With a median age of 28.65, it is a young county.

Dewey County has a working-class economic profile. The median household income of $53,921 is below the national average. Unemployment stands at 18.3%, more than double the national average. The poverty rate of 31.4% is significantly above the national average, indicating economic challenges.

Housing in Dewey County is one of the more affordable housing markets in the country, with a median home value of $75,565 — well below the national average. Monthly median rent is approximately $677.

The residents of Dewey County are racially diverse, with White as the largest group at 24.3%. Educational attainment is moderately educated — 29.4% of adults hold a bachelor's degree or higher, below the national average.

Dewey County, SD is a working-class area in South Dakota. The 7 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.

ZIP Codes in Dewey County
ZIPCityPopulationMedian IncomeMedian HomeMedian RentUnemp.College
57625 Eagle Butte 3,857 $49,643 $72,000 $718 20.4% 29.7%
57630 Glencross 21 $197,500 0.0% 38.9%
57633 Isabel 421 $88,750 $63,300 $756 3.5% 38.4%
57636 Lantry 66 $92,500 $207,100 0.0% 19.2%
57652 Ridgeview 377 $19,798 $467 44.5% 3.9%
57656 Timber Lake 911 $63,571 $86,800 $567 4.8% 39.1%
57661 Whitehorse 152 $56,250 $603 31.3% 6.2%