57249 ZIP Code — Lake Preston, SD

Kingsbury County, South Dakota

ZIP code 57249 is located in Lake Preston, South Dakota, within Kingsbury County. It covers approximately 145.62 square miles and serves a population of 950 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57249

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 $181,700. Owner-occupancy is high at 79%, well above the national average.

Median household income is $69,500. 41% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 21 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Overall, ZIP code 57249 reflects a community defined by high homeownership and a significant Social Security-dependent population.

950

population

145.62

sq mi land

Standard

ZIP type

Central (CT)

timezone

57249 ZIP code map

Cities in ZIP code 57249

Below are the cities the US Postal Service accepts for ZIP code 57249. Using any city not on this list may result in mail delivery delays.

City	Status
Lake Preston	Preferred

Nearby ZIP codes

57231 De Smet (9 mi) 57051 Oldham (10.6 mi) 57212 Arlington (10.9 mi) 57248 Lake Norden (15.8 mi) 57221 Bryant (16.8 mi) 57054 Ramona (18.1 mi)

Demographics updated 05/2026

Population
Total population	950
Population density	7 / sq mi
State FIPS	46
County FIPS	077

Geography
Land area	145.62 sq mi
Water area	12.13 sq mi
Latitude	44.3760
Longitude	-97.3796
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	37.3%	37.0%	41.7%
$50k – $100k	43.3%	37.7%	33.8%
$100k – $200k	16.8%	21.3%	20.1%
Over $200k	2.8%	4.0%	4.4%

Demographics & statistics

950

Population

People per sq mi

50.5

Median age

$69,500

Median household income

$38,363

Per capita income

$181,700

Median home value

$499

Median monthly rent

78.9%

Home ownership

10.5%

Poverty rate

0.2%

Unemployment

522

Housing units

22.1%

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	149	15.7%
18 and over	801	84.3%
65 and over	240	25.3%
Median age	50.5 years

Race & ethnicity

White 84.5%

Two or more races 9.4%

Hispanic or Latino 4.4%

American Indian / Alaska Native 1.3%

Asian 0.4%

Group	Count	%
White	840	84.5%
Two or more races	93	9.4%
Hispanic or Latino	44	4.4%
American Indian / Alaska Native	13	1.3%
Asian	4	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.3%	37.0%	41.7%
$50k – $100k	43.3%	37.7%	33.8%
$100k – $200k	16.8%	21.3%	20.1%
Over $200k	2.8%	4.0%	4.4%

Under $10k 4.7%

$10k–$15k 8.8%

$15k–$25k 5.1%

$25k–$35k 3.7%

$35k–$50k 10.0%

$50k–$75k 22.3%

$75k–$100k 17.2%

$100k–$150k 19.6%

$150k–$200k 4.4%

$200k+ 4.2%

Range	% of households
Under $10k	4.7%
$10k–$15k	8.8%
$15k–$25k	5.1%
$25k–$35k	3.7%
$35k–$50k	10.0%
$50k–$75k	22.3%
$75k–$100k	17.2%
$100k–$150k	19.6%
$150k–$200k	4.4%
$200k+	4.2%
Median income	$69,500

Housing

Home values

Under $50k 14.0%

$50k–$100k 17.7%

$100k–$150k 9.3%

$150k–$200k 18.3%

$200k–$300k 14.9%

$300k–$500k 14.0%

$500k–$1M 8.1%

$1M+ 3.7%

Housing overview

Metric	Value
Median home value	$181,700
Median rent / month	$499
Owner occupied	78.9%
Renter occupied	21.1%
Vacant	32.9%
Single-family detached	80.3%
Large apartment buildings	2.6%
Mobile homes	3.8%
Median rooms	6.1
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.3%
2010–2019	5.3%
2000–2009	19.1%
1990–1999	7.7%
1980–1989	17.1%
1970–1979	6.9%
1960–1969	5.8%
1950–1959	9.4%
1940–1949	2.3%
1939 or earlier	26.2%

Bedrooms

Size	% of units
No bedroom (studio)	5.9%
1 bedroom	8.6%
2 bedrooms	19.7%
3 bedrooms	38.3%
4 bedrooms	19.2%
5+ bedrooms	8.2%

Vehicles per household

Vehicles	% of households
No vehicle	13.7%
1 vehicle	13.0%
2 vehicles	28.4%
3 or more	44.9%

Heating fuel

Fuel type	%
Utility gas	40.0%
Electricity	38.0%
Propane / LP gas	18.4%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	218	53.4%
Cohabiting couple	14	3.4%
Male householder, no spouse	100	24.5%
Female householder, no spouse	76	18.6%
Households with children under 18	61	15.0%
Households with seniors (65+)	164	40.2%
Average household size	2.33

Marital status

Status	Male	Female
Never married	29.6%	22.5%
Married	58.0%	57.6%
Separated	2.2%	0.0%
Widowed	1.7%	11.6%
Divorced	8.4%	8.3%

Education

Less than 9th grade 2.9%

Some HS, no diploma 7.3%

HS graduate 34.3%

Some college, no degree 19.2%

Associate's degree 14.2%

Bachelor's degree 19.2%

Graduate / professional 2.9%

Metric	%
HS diploma or higher	89.8%
Bachelor's or higher	22.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	2.3%
Kindergarten	5	2.9%
Elementary school	97	56.4%
High school	33	19.2%
College / grad school	33	19.2%

Employment

Industry of employment

Manufacturing 23.5%

Agriculture & mining 21.2%

Education & healthcare 18.7%

Construction 8.4%

Transportation & utilities 6.2%

Finance & real estate 5.9%

Arts, food & hospitality 5.5%

Retail trade 3.2%

Wholesale trade 2.3%

Professional & management 2.3%

Public administration 1.8%

Other services 0.9%

Occupation

Category	%
Management, business & arts	40.6%
Service	11.4%
Sales & office	12.8%
Natural resources & construction	13.0%
Production & transportation	22.1%

Employment type

Type	%
Private sector	75.1%
Government	13.5%
Self-employed	11.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	65.7%
Carpool	7.9%
Public transit	0.0%
Walk	8.1%
Work from home	14.1%
Other means	4.2%
Avg commute (minutes)	21.3

Poverty

All people 10.5%

Under 18 years 9.7%

18 and over 10.6%

Married-couple families 6.4%

Female-led households 0.0%

Income support

Source	% of households
Social Security	40.9%
Retirement income	18.6%
Supplemental Security	1.2%
Cash public assistance	0.5%
Food stamps / SNAP	2.5%

Health indicators

Condition	%
Obesity	33.7%
High blood pressure	33.7%
High cholesterol	33.4%
Diabetes	10.0%
Heart disease	7.7%
Stroke	3.4%
Asthma	8.5%
Arthritis	26.2%
Kidney disease	3.2%
Pulmonary disease	6.4%
Cancer	8.3%

Behavior / access	%
Smoking	16.7%
Binge drinking	18.3%
No physical activity	24.3%
Less than 7 hrs sleep	26.8%
Depression	14.2%
Fair or poor health	11.6%
Poor mental health	9.8%
Poor physical health	9.1%
No health insurance	11.4%
Visited doctor (checkup)	76.4%
Visited dentist	68.9%
Cholesterol screening	90.7%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	52	6.5%

Disability	%
Any disability	18.1%
Under 18	0.0%
18–64 years	18.2%
65 and over	29.2%

Health insurance coverage

Type	%
Private insurance	72.6%
Public insurance	38.7%
No insurance	5.2%
Uninsured under 19	11.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	927	97.6%
Spanish	6	0.6%
Other Indo-European	6	0.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	939	98.8%
Born in same state	928	97.7%
Born in different state	651	68.5%
Foreign born	11	1.2%
Naturalized citizen	11	1.2%
Not a US citizen	7	63.6%

Ancestry

Ancestry	Count	%
Polish	223	23.5%
Italian	99	10.4%
Dutch	69	7.3%
French	38	4%

Ancestry	Count	%
English	28	2.9%
Arab	25	2.6%
German	8	0.8%
Irish	2	0.2%

Technology access

Metric	% of households
Computer access	42.9%
Internet access	91.2%

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

Frequently asked questions about ZIP code 57249

What city is ZIP code 57249 in?

ZIP code 57249 is primarily assigned to Lake Preston, South Dakota.

What county is ZIP code 57249 in?

ZIP code 57249 falls within Kingsbury County, South Dakota.

Does ZIP code 57249 have an older population?

25% of residents in ZIP code 57249 are 65 or older, above the national average of ~17%.

Does ZIP code 57249 have a large retiree population?

41% of households in ZIP code 57249 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 57249?

The median home value in ZIP code 57249 is $181,700.

What is the population of ZIP code 57249?

ZIP code 57249 has an estimated population of 950 residents, with a density of 7 people per square mile.

What timezone is ZIP code 57249 in?

ZIP code 57249 observes the CST timezone.