Dewey County, SD ZIP Codes
South Dakota (SD) · 7 ZIP codes · 7 cities
7
ZIP codes
5,246
population (2021)
-1.0%
pop change since 2010
46041
FIPS code
Dewey County ZIP code map
About Dewey County
Dewey County is located in South Dakota and contains 7 ZIP codes across 7 cities and communities.
The county's population was 5,246 as of 2021,
a decrease of
1% from 5,301 in 2010.
The timezone is Pacific Time (observes DST).
The Federal Information Processing System (FIPS) code for Dewey County is 46041.
| Population | |
|---|---|
| 2021 population | 5,246 |
| 2010 population | 5,301 |
| Change | -1.0% |
| County details | |
|---|---|
| State | South Dakota |
| FIPS code | 46041 |
| Timezone | Pacific |
| Daylight saving | Yes |
Cities in Dewey County
ZIP codes for Dewey County, SD (7)
| ZIP code | City | County | Map |
|---|---|---|---|
| 57625 | Eagle Butte | Dewey | View map |
| 57630 | Glencross | Dewey | View map |
| 57633 | Isabel | Dewey | View map |
| 57636 | Lantry | Dewey | View map |
| 57652 | Ridgeview | Dewey | View map |
| 57656 | Timber Lake | Dewey | View map |
| 57661 | Whitehorse | Dewey | View map |
Demographics & statistics
5,188
Population
27.5
Median age
$48,288
Median household income
$19,873
Per capita income
$112,200
Median home value
$408
Median monthly rent
70.1%
Home ownership
31.5%
Poverty rate
16.8%
Unemployment
1,175
Housing units
20.3%
Bachelor's or higher
Age distribution
Male
Female
310
Under 5
287
317
5–9
293
242
10–14
224
218
15–19
201
171
20–24
158
337
25–34
311
371
35–44
344
232
45–54
214
127
55–59
117
147
60–64
136
147
65–74
136
68
75–84
63
9
85+
8
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,933 | 28.2% |
| 18 and over | 3,255 | 71.8% |
| 65 and over | 431 | 10.6% |
| Median age | 27.5 years | |
Race & ethnicity
American Indian / Alaska Native
75.3%
White
15.3%
Two or more races
5.5%
Hispanic or Latino
2.9%
Native Hawaiian / Pacific Islander
0.6%
Black or African American
0.4%
Asian
0.1%
Other race
0.1%
| Group | Count | % |
|---|---|---|
| American Indian / Alaska Native | 4,024 | 75.3% |
| White | 815 | 15.3% |
| Two or more races | 294 | 5.5% |
| Hispanic or Latino | 153 | 2.9% |
| Native Hawaiian / Pacific Islander | 30 | 0.6% |
| Black or African American | 19 | 0.4% |
| Asian | 3 | 0.1% |
| Other race | 3 | 0.1% |
Household income
Under $10k
9.6%
$10k–$15k
6.2%
$15k–$25k
10.5%
$25k–$35k
6.7%
$35k–$50k
14.3%
$50k–$75k
21.3%
$75k–$100k
6.5%
$100k–$150k
7.6%
$150k–$200k
10.3%
$200k+
7.0%
| Range | % of households |
|---|---|
| Under $10k | 9.6% |
| $10k–$15k | 6.2% |
| $15k–$25k | 10.5% |
| $25k–$35k | 6.7% |
| $35k–$50k | 14.3% |
| $50k–$75k | 21.3% |
| $75k–$100k | 6.5% |
| $100k–$150k | 7.6% |
| $150k–$200k | 10.3% |
| $200k+ | 7.0% |
| Median income | $48,288 |
Housing
Home values
Under $50k
25.9%
$50k–$100k
27.0%
$100k–$150k
14.1%
$150k–$200k
4.3%
$200k–$300k
15.4%
$300k–$500k
8.3%
$500k–$1M
1.4%
$1M+
3.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $112,200 |
| Median rent / month | $408 |
| Owner occupied | 70.1% |
| Renter occupied | 29.9% |
| Vacant | 10.3% |
| Single-family detached | 76.8% |
| Large apartment buildings | 1.4% |
| Mobile homes | 11.3% |
| Median rooms | 5.6 |
| Avg household size (owned) | 2.95 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 5.3% |
| 2000–2009 | 10.9% |
| 1990–1999 | 9.5% |
| 1980–1989 | 14.5% |
| 1970–1979 | 24.7% |
| 1960–1969 | 9.1% |
| 1950–1959 | 7.8% |
| 1940–1949 | 6.7% |
| 1939 or earlier | 11.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.8% |
| 1 bedroom | 8.1% |
| 2 bedrooms | 22.8% |
| 3 bedrooms | 37.6% |
| 4 bedrooms | 19.3% |
| 5+ bedrooms | 11.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 8.5% |
| 1 vehicle | 31.9% |
| 2 vehicles | 33.5% |
| 3 or more | 26.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 0.3% |
| Electricity | 19.7% |
| Propane / LP gas | 70.8% |
| Fuel oil | 7.8% |
| Wood | 0.9% |
| Solar | 0.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 502 | 38.2% |
| Cohabiting couple | 204 | 7.5% |
| Male householder, no spouse | 330 | 24.8% |
| Female householder, no spouse | 522 | 29.7% |
| Households with children under 18 | 779 | 39.5% |
| Households with seniors (65+) | 364 | 20.7% |
| Average household size | 3.00 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 45.2% | 32.3% |
| Married | 43.3% | 42.2% |
| Separated | 0.7% | 1.5% |
| Widowed | 3.7% | 13.9% |
| Divorced | 7.1% | 10.1% |
Education
Less than 9th grade
0.5%
Some HS, no diploma
11.1%
HS graduate
40.1%
Some college, no degree
18.7%
Associate's degree
9.3%
Bachelor's degree
13.7%
Graduate / professional
6.6%
| Metric | % |
|---|---|
| HS diploma or higher | 88.4% |
| Bachelor's or higher | 20.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 215 | 12.5% |
| Kindergarten | 32 | 1.1% |
| Elementary school | 848 | 34.5% |
| High school | 380 | 15.9% |
| College / grad school | 107 | 11.0% |
Employment
Industry of employment
Education & healthcare
24.7%
Agriculture & mining
18.6%
Retail trade
13.0%
Public administration
11.3%
Professional & management
10.0%
Information
6.1%
Construction
4.0%
Other services
3.4%
Arts, food & hospitality
3.0%
Manufacturing
2.6%
Transportation & utilities
2.1%
Finance & real estate
1.2%
Wholesale trade
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 54.8% |
| Service | 13.5% |
| Sales & office | 12.3% |
| Natural resources & construction | 9.7% |
| Production & transportation | 9.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 32.9% |
| Government | 43.8% |
| Self-employed | 22.9% |
| Unpaid family workers | 0.4% |
Commute
| Method | % |
|---|---|
| Drive alone | 59.5% |
| Carpool | 15.9% |
| Public transit | 2.8% |
| Walk | 1.0% |
| Other means | 0.4% |
| Avg commute (minutes) | 8.5 |
Poverty
All people
31.5%
Under 18 years
29.1%
18 and over
29.4%
Married-couple families
22.9%
Female-led households
31.9%
Income support
| Source | % of households |
|---|---|
| Social Security | 26.0% |
| Retirement income | 21.9% |
| Supplemental Security | 2.3% |
| Cash public assistance | 20.1% |
| Food stamps / SNAP | 15.5% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 25.9% |
| High cholesterol | 21.6% |
| Heart disease | 6.3% |
| Stroke | 3.6% |
| Asthma | 8.8% |
| Arthritis | 19.0% |
| Kidney disease | 2.9% |
| Pulmonary disease | 6.5% |
| Cancer | 4.4% |
| Behavior / access | % |
|---|---|
| Binge drinking | 14.4% |
| No physical activity | 23.4% |
| Less than 7 hrs sleep | 25.4% |
| Fair or poor health | 15.2% |
| Poor mental health | 11.3% |
| Poor physical health | 10.4% |
| No health insurance | 11.5% |
| Visited doctor (checkup) | 56.8% |
| Visited dentist | 43.5% |
| Cholesterol screening | 63.4% |
| Teeth loss | 19.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 187 | 8.4% |
| Disability | % |
|---|---|
| Any disability | 11.7% |
| Under 18 | 2.8% |
| 18–64 years | 9.2% |
| 65 and over | 32.1% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 37.0% |
| Public insurance | 47.0% |
| Uninsured under 19 | 7.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 4,591 | 88.9% |
| Spanish | 11 | 0.2% |
| Other Indo-European | 1 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 3 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 5,167 | 99.6% |
| Born in same state | 5,167 | 99.6% |
| Born in different state | 4,527 | 77.5% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 21 | 0.4% |
| Not a US citizen | 2 | 5.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 271 | 5.2% |
| Italian | 123 | 2.4% |
| Polish | 69 | 1.3% |
| Ancestry | Count | % |
|---|---|---|
| French | 28 | 0.5% |
| English | 19 | 0.4% |
| German | 6 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.6% |
| Internet access | 75.8% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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