57028 ZIP Code — Flandreau, SD

Moody County, South Dakota

ZIP code 57028 is located in Flandreau, South Dakota, within Moody County. It covers approximately 200.78 square miles and serves a population of 3,105 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57028

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $164,600. Owner-occupancy sits near the national average at 60%.

Median household income is $63,631. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 15 minutes is near the national average.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

3,105

population

200.78

sq mi land

Standard

ZIP type

Central (CT)

timezone

57028 ZIP code map

Cities in ZIP code 57028

Below are the cities the US Postal Service accepts for ZIP code 57028. Using any city not on this list may result in mail delivery delays.

City	Status
Flandreau	Preferred

Nearby ZIP codes

57017 Colman (11.1 mi) 57065 Trent (12 mi) 57026 Elkton (13.6 mi) 56164 Pipestone (15.6 mi) 57002 Aurora (16.2 mi) 57022 Dell Rapids (17.8 mi) 57075 Wentworth (18.3 mi) 57007 Brookings (19.4 mi) 56144 Jasper (19.4 mi)

Demographics updated 05/2026

Population
Total population	3,105
Population density	15 / sq mi
State FIPS	46
County FIPS	101

Geography
Land area	200.78 sq mi
Water area	0.39 sq mi
Latitude	44.0651
Longitude	-96.6211
Timezone	Central (CT)
Area code	605

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.5%	39.5%	41.7%
$50k – $100k	33.1%	34.4%	33.8%
$100k – $200k	19.3%	20.3%	20.1%
Over $200k	2.1%	5.9%	4.4%

Demographics & statistics

3,105

Population

People per sq mi

40.7

Median age

$63,631

Median household income

$33,228

Per capita income

$164,600

Median home value

$613

Median monthly rent

60.2%

Home ownership

13.7%

Poverty rate

2.0%

Unemployment

934

Housing units

27.4%

Bachelor's or higher

Age distribution

Male Female

134

Under 5

143

5–9

106

10–14

114

100

15–19

107

20–24

165

25–34

177

156

35–44

167

161

45–54

173

100

55–59

107

60–64

104

206

65–74

220

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	816	26.3%
18 and over	2,289	73.7%
65 and over	692	22.3%
Median age	40.7 years

Race & ethnicity

White 57.6%

American Indian / Alaska Native 23.4%

Two or more races 8.9%

Hispanic or Latino 4.3%

Asian 3.5%

Black or African American 1.1%

Other race 1%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	1,869	57.6%
American Indian / Alaska Native	760	23.4%
Two or more races	290	8.9%
Hispanic or Latino	140	4.3%
Asian	115	3.5%
Black or African American	36	1.1%
Other race	33	1%
Native Hawaiian / Pacific Islander	2	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.5%	39.5%	41.7%
$50k – $100k	33.1%	34.4%	33.8%
$100k – $200k	19.3%	20.3%	20.1%
Over $200k	2.1%	5.9%	4.4%

Under $10k 5.3%

$10k–$15k 3.8%

$15k–$25k 8.7%

$25k–$35k 9.9%

$35k–$50k 11.6%

$50k–$75k 18.7%

$75k–$100k 14.4%

$100k–$150k 13.0%

$150k–$200k 9.5%

$200k+ 5.0%

Range	% of households
Under $10k	5.3%
$10k–$15k	3.8%
$15k–$25k	8.7%
$25k–$35k	9.9%
$35k–$50k	11.6%
$50k–$75k	18.7%
$75k–$100k	14.4%
$100k–$150k	13.0%
$150k–$200k	9.5%
$200k+	5.0%
Median income	$63,631

Housing

Home values

Under $50k 10.2%

$50k–$100k 17.5%

$100k–$150k 16.9%

$150k–$200k 17.7%

$200k–$300k 23.4%

$300k–$500k 13.7%

$500k–$1M 0.6%

Housing overview

Metric	Value
Median home value	$164,600
Median rent / month	$613
Owner occupied	60.2%
Renter occupied	39.8%
Vacant	11.0%
Single-family detached	76.9%
Large apartment buildings	2.2%
Mobile homes	2.8%
Median rooms	6.2
Avg household size (owned)	2.38

Year built

Era	%
2020 or later	0.7%
2010–2019	6.6%
2000–2009	8.4%
1990–1999	8.4%
1980–1989	8.3%
1970–1979	12.7%
1960–1969	10.5%
1950–1959	3.9%
1940–1949	4.8%
1939 or earlier	35.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.4%
1 bedroom	5.7%
2 bedrooms	30.5%
3 bedrooms	29.7%
4 bedrooms	28.1%
5+ bedrooms	4.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.8%
1 vehicle	33.3%
2 vehicles	28.4%
3 or more	31.5%

Heating fuel

Fuel type	%
Utility gas	46.2%
Electricity	31.4%
Propane / LP gas	14.2%
Fuel oil	4.7%
No fuel used	2.7%

Households & families

Household type	Count	%
Married-couple family	534	41.5%
Cohabiting couple	135	10.5%
Male householder, no spouse	194	15.1%
Female householder, no spouse	425	33.0%
Households with children under 18	363	28.2%
Households with seniors (65+)	494	38.4%
Average household size	2.36

Marital status

Status	Male	Female
Never married	33.2%	28.2%
Married	51.6%	44.7%
Separated	5.1%	0.6%
Widowed	3.0%	12.2%
Divorced	6.9%	14.3%

Education

Less than 9th grade 4.1%

Some HS, no diploma 3.2%

HS graduate 29.8%

Some college, no degree 22.3%

Associate's degree 13.1%

Bachelor's degree 15.5%

Graduate / professional 11.9%

Metric	%
HS diploma or higher	92.7%
Bachelor's or higher	27.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	3.8%
Kindergarten	49	7.7%
Elementary school	294	46.0%
High school	199	31.1%
College / grad school	73	11.4%

Employment

Industry of employment

Education & healthcare 28.3%

Arts, food & hospitality 15.0%

Retail trade 9.4%

Public administration 9.1%

Construction 8.5%

Agriculture & mining 8.1%

Manufacturing 6.4%

Other services 4.9%

Transportation & utilities 4.3%

Finance & real estate 3.3%

Professional & management 2.1%

Wholesale trade 0.3%

Information 0.2%

Occupation

Category	%
Management, business & arts	33.8%
Service	30.0%
Sales & office	16.8%
Natural resources & construction	10.6%
Production & transportation	8.8%

Employment type

Type	%
Private sector	58.6%
Government	28.5%
Self-employed	12.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	66.3%
Carpool	10.5%
Public transit	1.9%
Walk	8.1%
Work from home	12.6%
Other means	0.6%
Avg commute (minutes)	14.8

Poverty

All people 13.7%

Under 18 years 21.1%

18 and over 11.1%

Married-couple families 6.7%

Female-led households 5.1%

Income support

Source	% of households
Social Security	35.2%
Retirement income	25.2%
Supplemental Security	1.8%
Cash public assistance	3.6%
Food stamps / SNAP	9.6%

Health indicators

Condition	%
Obesity	32.7%
High blood pressure	33.1%
High cholesterol	30.6%
Diabetes	10.8%
Heart disease	7.8%
Stroke	3.8%
Asthma	9.6%
Arthritis	26.3%
Kidney disease	3.4%
Pulmonary disease	7.0%
Cancer	7.8%

Behavior / access	%
Smoking	20.3%
Binge drinking	18.3%
No physical activity	25.5%
Less than 7 hrs sleep	28.6%
Depression	15.7%
Fair or poor health	13.8%
Poor mental health	11.5%
Poor physical health	10.2%
No health insurance	12.6%
Visited doctor (checkup)	75.9%
Visited dentist	64.2%
Cholesterol screening	88.6%
Teeth loss	16.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	147	6.4%

Disability	%
Any disability	12.6%
Under 18	2.0%
18–64 years	7.9%
65 and over	38.5%

Health insurance coverage

Type	%
Private insurance	64.3%
Public insurance	38.7%
No insurance	11.7%
Uninsured under 19	11.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,828	91.1%
Spanish	95	3.4%
Other Indo-European	62	2.2%
Asian & Pacific Islander	0	0.0%
Other languages	33	1.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,933	94.5%
Born in same state	2,917	93.9%
Born in different state	2,100	67.6%
Foreign born	16	0.5%
Naturalized citizen	172	5.5%
Not a US citizen	80	46.5%

Ancestry

Ancestry	Count	%
Polish	493	15.9%
Italian	213	6.9%
Arab	208	6.7%
French	120	3.9%

Ancestry	Count	%
Dutch	94	3%
English	79	2.5%
German	5	0.2%

Technology access

Metric	% of households
Computer access	41.5%
Internet access	91.5%

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

Frequently asked questions about ZIP code 57028

What city is ZIP code 57028 in?

ZIP code 57028 is primarily assigned to Flandreau, South Dakota.

What county is ZIP code 57028 in?

ZIP code 57028 falls within Moody County, South Dakota.

Does ZIP code 57028 have a large retiree population?

35% of households in ZIP code 57028 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 57028?

The median home value in ZIP code 57028 is $164,600.

What is the population of ZIP code 57028?

ZIP code 57028 has an estimated population of 3,105 residents, with a density of 15 people per square mile.

What is the median household income in ZIP code 57028?

The median household income in ZIP code 57028 is $63,631, below the national median of ~$75,000.

What timezone is ZIP code 57028 in?

ZIP code 57028 observes the CST timezone.