57075 ZIP Code — Wentworth, SD

Lake County, South Dakota

ZIP code 57075 is located in Wentworth, South Dakota, within Lake County. It covers approximately 79.89 square miles and serves a population of 1,115 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57075

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $401,900. Owner-occupancy is high at 92%, well above the national average.

The gap between median ($102,125) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 4% is below the national average. 41% 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 23 minutes is near the national average.

Educational attainment is near the national average, with 35% of residents holding a bachelor's degree or higher.

Overall, ZIP code 57075 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,115

population

79.89

sq mi land

Standard

ZIP type

Central (CT)

timezone

57075 ZIP code map

Cities in ZIP code 57075

Below are the cities the US Postal Service accepts for ZIP code 57075. Using any city not on this list may result in mail delivery delays.

City	Status
Wentworth	Acceptable
Wentworth	Preferred

Nearby ZIP codes

57017 Colman (7.2 mi) 57016 Chester (7.7 mi) 57042 Madison (8.3 mi) 57050 Nunda (10.6 mi) 57018 Colton (14.5 mi) 57054 Ramona (16.2 mi) 57022 Dell Rapids (17.5 mi) 57076 Winfred (18 mi) 57071 Volga (18.1 mi) 57028 Flandreau (18.3 mi) 57065 Trent (19.7 mi)

Demographics updated 05/2026

Population
Total population	1,115
Population density	14 / sq mi
State FIPS	46
County FIPS	079

Geography
Land area	79.89 sq mi
Water area	5.96 sq mi
Latitude	44.0005
Longitude	-96.9774
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	22.2%	34.6%	41.7%
$50k – $100k	40.6%	39.3%	33.8%
$100k – $200k	26.5%	21.7%	20.1%
Over $200k	10.7%	4.4%	4.4%

Demographics & statistics

1,115

Population

People per sq mi

56.3

Median age

$102,125

Median household income

$99,535

Per capita income

$401,900

Median home value

$782

Median monthly rent

92.3%

Home ownership

3.5%

Poverty rate

0.6%

Unemployment

912

Housing units

34.8%

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

110

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	158	14.2%
18 and over	957	85.8%
65 and over	299	26.8%
Median age	56.3 years

Race & ethnicity

White 91.6%

Two or more races 3.6%

American Indian / Alaska Native 3.1%

Black or African American 1.3%

Hispanic or Latino 0.4%

Group	Count	%
White	1,026	91.6%
Two or more races	40	3.6%
American Indian / Alaska Native	35	3.1%
Black or African American	14	1.3%
Hispanic or Latino	5	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	22.2%	34.6%	41.7%
$50k – $100k	40.6%	39.3%	33.8%
$100k – $200k	26.5%	21.7%	20.1%
Over $200k	10.7%	4.4%	4.4%

Under $10k 3.4%

$10k–$15k 1.0%

$15k–$25k 4.6%

$25k–$35k 2.2%

$35k–$50k 8.3%

$50k–$75k 12.7%

$75k–$100k 14.5%

$100k–$150k 23.8%

$150k–$200k 13.7%

$200k+ 15.9%

Range	% of households
Under $10k	3.4%
$10k–$15k	1.0%
$15k–$25k	4.6%
$25k–$35k	2.2%
$35k–$50k	8.3%
$50k–$75k	12.7%
$75k–$100k	14.5%
$100k–$150k	23.8%
$150k–$200k	13.7%
$200k+	15.9%
Median income	$102,125

Housing

Home values

Under $50k 6.2%

$50k–$100k 4.7%

$100k–$150k 3.2%

$150k–$200k 6.7%

$200k–$300k 9.5%

$300k–$500k 36.3%

$500k–$1M 20.0%

$1M+ 13.3%

Housing overview

Metric	Value
Median home value	$401,900
Median rent / month	$782
Owner occupied	92.3%
Renter occupied	7.7%
Vacant	47.0%
Single-family detached	77.1%
Large apartment buildings	0.0%
Mobile homes	20.3%
Median rooms	6.5
Avg household size (owned)	2.20

Year built

Era	%
2020 or later	1.9%
2010–2019	15.9%
2000–2009	16.1%
1990–1999	10.6%
1980–1989	11.7%
1970–1979	24.8%
1960–1969	7.4%
1950–1959	0.3%
1940–1949	1.2%
1939 or earlier	10.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.9%
2 bedrooms	19.8%
3 bedrooms	35.1%
4 bedrooms	26.0%
5+ bedrooms	15.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.8%
1 vehicle	10.5%
2 vehicles	44.6%
3 or more	44.0%

Heating fuel

Fuel type	%
Utility gas	35.1%
Electricity	33.1%
Propane / LP gas	23.8%
Fuel oil	0.6%
Wood	0.8%

Households & families

Household type	Count	%
Married-couple family	325	64.5%
Cohabiting couple	15	3.0%
Male householder, no spouse	123	24.4%
Female householder, no spouse	41	8.1%
Households with children under 18	83	16.5%
Households with seniors (65+)	193	38.3%
Average household size	2.21

Marital status

Status	Male	Female
Never married	20.7%	14.7%
Married	62.0%	72.9%
Separated	0.4%	1.2%
Widowed	2.8%	8.6%
Divorced	14.1%	2.6%

Education

Less than 9th grade 1.0%

Some HS, no diploma 2.7%

HS graduate 31.0%

Some college, no degree 16.6%

Associate's degree 13.8%

Bachelor's degree 25.2%

Graduate / professional 9.6%

Metric	%
HS diploma or higher	96.3%
Bachelor's or higher	34.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	7	5.1%
Kindergarten	0	0.0%
Elementary school	78	56.5%
High school	38	27.5%
College / grad school	15	10.9%

Employment

Industry of employment

Education & healthcare 20.7%

Construction 18.0%

Manufacturing 12.5%

Transportation & utilities 10.8%

Finance & real estate 10.8%

Arts, food & hospitality 6.4%

Agriculture & mining 4.5%

Professional & management 4.5%

Retail trade 4.4%

Other services 4.2%

Wholesale trade 2.8%

Public administration 0.2%

Occupation

Category	%
Management, business & arts	44.2%
Service	4.9%
Sales & office	19.1%
Natural resources & construction	21.8%
Production & transportation	10.0%

Employment type

Type	%
Private sector	79.5%
Government	10.0%
Self-employed	10.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.5%
Carpool	3.0%
Public transit	0.0%
Walk	3.0%
Work from home	19.4%
Other means	3.1%
Avg commute (minutes)	23.3

Poverty

All people 3.5%

Under 18 years 0.6%

18 and over 4.0%

Married-couple families 1.2%

Female-led households 30.8%

Income support

Source	% of households
Social Security	40.5%
Retirement income	27.0%
Supplemental Security	3.6%
Cash public assistance	2.4%
Food stamps / SNAP	2.4%

Health indicators

Condition	%
Obesity	32.1%
High blood pressure	30.2%
High cholesterol	31.4%
Diabetes	8.7%
Heart disease	6.5%
Stroke	2.7%
Asthma	8.3%
Arthritis	24.2%
Kidney disease	2.7%
Pulmonary disease	5.2%
Cancer	8.0%

Behavior / access	%
Smoking	14.6%
Binge drinking	19.8%
No physical activity	19.6%
Less than 7 hrs sleep	26.5%
Depression	14.1%
Fair or poor health	9.2%
Poor mental health	9.2%
Poor physical health	7.8%
No health insurance	9.0%
Visited doctor (checkup)	76.0%
Visited dentist	74.3%
Cholesterol screening	92.2%
Teeth loss	9.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	93	9.7%

Disability	%
Any disability	8.3%
Under 18	1.9%
18–64 years	8.1%
65 and over	12.4%

Health insurance coverage

Type	%
Private insurance	84.8%
Public insurance	34.3%
No insurance	3.1%
Uninsured under 19	1.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,086	97.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,115	100.0%
Born in same state	1,107	99.3%
Born in different state	873	78.3%
Foreign born	8	0.7%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	215	19.3%
Italian	116	10.4%
English	54	4.8%

Ancestry	Count	%
French	47	4.2%
Dutch	44	3.9%
Arab	34	3%

Technology access

Metric	% of households
Computer access	45.2%
Internet access	97.2%

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

Frequently asked questions about ZIP code 57075

What city is ZIP code 57075 in?

ZIP code 57075 is primarily assigned to Wentworth, South Dakota.

What county is ZIP code 57075 in?

ZIP code 57075 falls within Lake County, South Dakota.

Is ZIP code 57075 mostly owner-occupied?

92% of occupied units in ZIP code 57075 are owner-occupied, well above the national average.

Does ZIP code 57075 have an older population?

27% of residents in ZIP code 57075 are 65 or older, above the national average of ~17%.

Does ZIP code 57075 have a large retiree population?

41% of households in ZIP code 57075 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 57075?

The median home value in ZIP code 57075 is $401,900.

What timezone is ZIP code 57075 in?

ZIP code 57075 observes the CST timezone.