57623 ZIP Code — Dupree, SD

Ziebach County, South Dakota

ZIP code 57623 is located in Dupree, South Dakota, within Ziebach County. It covers approximately 639.65 square miles and serves a population of 912 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.

About ZIP code 57623

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $71,900. Owner-occupancy sits near the national average at 65%.

Median household income is $55,357. Poverty affects 28% of residents, above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average. Remote work is prevalent — 24% of workers work from home.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of obesity (47%), diabetes (17%), smoking (32%) compared to national benchmarks. 23% of residents lack health insurance, above the national average.

Overall, ZIP code 57623 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and a high rate of remote workers.

912

population

639.65

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

57623 ZIP code map

Cities in ZIP code 57623

Below are the cities the US Postal Service accepts for ZIP code 57623. Using any city not on this list may result in mail delivery delays.

City	Status
Dupree	Acceptable
Dupree	Preferred

Nearby ZIP codes

57633 Isabel (17.2 mi)

Demographics updated 06/2026

Population
Total population	912
Population density	1 / sq mi
State FIPS	46
County FIPS	137

Geography
Land area	639.65 sq mi
Water area	1.92 sq mi
Latitude	45.0507
Longitude	-101.5687
Timezone	Mountain (MT)
Area code	605

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.8%	54.0%	41.7%
$50k – $100k	25.4%	24.0%	33.8%
$100k – $200k	14.8%	11.8%	20.1%
Over $200k	13.0%	10.3%	4.4%

Demographics & statistics

912

Population

People per sq mi

35.0

Median age

$55,357

Median household income

$27,243

Per capita income

$71,900

Median home value

$712

Median monthly rent

64.8%

Home ownership

28.1%

Poverty rate

10.9%

Unemployment

252

Housing units

18.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	225	24.7%
18 and over	687	75.3%
65 and over	120	13.2%
Median age	35.0 years

Race & ethnicity

American Indian / Alaska Native 62.8%

White 35.2%

Native Hawaiian / Pacific Islander 0.7%

Two or more races 0.5%

Hispanic or Latino 0.4%

Other race 0.4%

Group	Count	%
American Indian / Alaska Native	575	62.8%
White	322	35.2%
Native Hawaiian / Pacific Islander	6	0.7%
Two or more races	5	0.5%
Hispanic or Latino	4	0.4%
Other race	4	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.8%	54.0%	41.7%
$50k – $100k	25.4%	24.0%	33.8%
$100k – $200k	14.8%	11.8%	20.1%
Over $200k	13.0%	10.3%	4.4%

$10k–$15k 4.9%

$15k–$25k 15.9%

$25k–$35k 8.3%

$35k–$50k 17.8%

$50k–$75k 14.8%

$75k–$100k 11.4%

$100k–$150k 15.9%

$150k–$200k 3.4%

$200k+ 7.6%

Range	% of households
$10k–$15k	4.9%
$15k–$25k	15.9%
$25k–$35k	8.3%
$35k–$50k	17.8%
$50k–$75k	14.8%
$75k–$100k	11.4%
$100k–$150k	15.9%
$150k–$200k	3.4%
$200k+	7.6%
Median income	$55,357

Housing

Home values

Under $50k 29.8%

$50k–$100k 35.7%

$100k–$150k 12.3%

$150k–$200k 2.3%

$200k–$300k 12.9%

$300k–$500k 4.1%

$500k–$1M 2.9%

Housing overview

Metric	Value
Median home value	$71,900
Median rent / month	$712
Owner occupied	64.8%
Renter occupied	35.2%
Vacant	23.5%
Single-family detached	53.6%
Large apartment buildings	0.0%
Mobile homes	38.8%
Median rooms	5.4
Avg household size (owned)	3.36

Year built

Era	%
2020 or later	0.0%
2010–2019	6.4%
2000–2009	8.1%
1990–1999	20.3%
1980–1989	13.3%
1970–1979	23.2%
1960–1969	7.5%
1950–1959	3.8%
1940–1949	2.9%
1939 or earlier	14.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	4.6%
2 bedrooms	24.6%
3 bedrooms	52.2%
4 bedrooms	16.2%
5+ bedrooms	1.4%

Vehicles per household

Vehicles	% of households
No vehicle	5.3%
1 vehicle	22.7%
2 vehicles	38.6%
3 or more	33.3%

Heating fuel

Fuel type	%
Utility gas	2.7%
Electricity	9.8%
Propane / LP gas	82.2%
Wood	5.3%

Households & families

Household type	Count	%
Married-couple family	106	40.2%
Cohabiting couple	20	7.6%
Male householder, no spouse	60	22.7%
Female householder, no spouse	78	29.5%
Households with children under 18	88	33.3%
Households with seniors (65+)	74	28.0%
Average household size	3.45

Marital status

Status	Male	Female
Never married	53.3%	49.4%
Married	28.1%	32.4%
Separated	2.9%	2.5%
Widowed	1.7%	6.1%
Divorced	14.0%	9.6%

Education

Less than 9th grade 1.3%

Some HS, no diploma 8.4%

HS graduate 50.1%

Some college, no degree 12.5%

Associate's degree 8.9%

Bachelor's degree 13.2%

Graduate / professional 5.6%

Metric	%
HS diploma or higher	90.3%
Bachelor's or higher	18.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	22	11.1%
Kindergarten	16	8.1%
Elementary school	77	38.9%
High school	79	39.9%
College / grad school	4	2.0%

Employment

Industry of employment

Education & healthcare 26.4%

Agriculture & mining 21.8%

Public administration 19.4%

Retail trade 8.1%

Transportation & utilities 7.6%

Other services 4.6%

Arts, food & hospitality 3.9%

Finance & real estate 2.3%

Manufacturing 2.1%

Construction 1.6%

Professional & management 1.4%

Wholesale trade 0.7%

Occupation

Category	%
Management, business & arts	52.3%
Service	13.2%
Sales & office	16.7%
Natural resources & construction	6.9%
Production & transportation	10.9%

Employment type

Type	%
Private sector	24.1%
Government	60.6%
Self-employed	14.4%
Unpaid family workers	0.9%

Commute

Method	%
Drive alone	56.0%
Carpool	15.9%
Public transit	0.0%
Walk	3.3%
Work from home	24.1%
Other means	0.7%
Avg commute (minutes)	23.4

Poverty

All people 28.1%

Under 18 years 37.3%

18 and over 25.0%

Married-couple families 0.9%

Female-led households 43.1%

Income support

Source	% of households
Social Security	26.9%
Retirement income	17.4%
Supplemental Security	1.9%
Cash public assistance	14.4%
Food stamps / SNAP	15.9%

Health indicators

Condition	%
Obesity	47.4%
High blood pressure	36.5%
High cholesterol	31.5%
Diabetes	16.5%
Heart disease	10.1%
Stroke	5.7%
Asthma	12.4%
Arthritis	27.7%
Kidney disease	4.6%
Pulmonary disease	10.8%
Cancer	6.1%

Behavior / access	%
Smoking	32.3%
Binge drinking	17.7%
No physical activity	36.2%
Less than 7 hrs sleep	34.6%
Depression	17.9%
Fair or poor health	23.9%
Poor mental health	15.3%
Poor physical health	15.9%
No health insurance	16.5%
Visited doctor (checkup)	77.2%
Visited dentist	50.0%
Cholesterol screening	84.4%
Teeth loss	29.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	54	7.9%

Disability	%
Any disability	7.0%
Under 18	3.6%
18–64 years	4.4%
65 and over	25.8%

Health insurance coverage

Type	%
Private insurance	45.9%
Public insurance	38.0%
No insurance	22.8%
Uninsured under 19	17.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	851	93.3%
Spanish	2	0.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	2	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	909	99.7%
Born in same state	909	99.7%
Born in different state	801	87.8%
Foreign born	0	0.0%
Naturalized citizen	3	0.3%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	89	9.8%
French	47	5.2%
Arab	45	4.9%

Ancestry	Count	%
Polish	38	4.2%
Dutch	5	0.5%
English	3	0.3%

Technology access

Metric	% of households
Computer access	28.9%
Internet access	84.5%

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

Frequently asked questions about ZIP code 57623

What city is ZIP code 57623 in?

ZIP code 57623 is primarily assigned to Dupree, South Dakota.

What county is ZIP code 57623 in?

ZIP code 57623 falls within Ziebach County, South Dakota.

What is the poverty rate in ZIP code 57623?

28% of residents in ZIP code 57623 live below the poverty line, above the national average.

What are the health statistics for ZIP code 57623?

Health data for ZIP code 57623 shows elevated rates of obesity (47%) and diabetes (17%) and smoking (32%) compared to national benchmarks.

What is the typical home value in ZIP code 57623?

The median home value in ZIP code 57623 is $71,900.

What is the population of ZIP code 57623?

ZIP code 57623 has an estimated population of 912 residents, with a density of 1 people per square mile.

What timezone is ZIP code 57623 in?

ZIP code 57623 observes the MST timezone.