57040 ZIP Code — Lesterville, SD

Yankton County, South Dakota

ZIP code 57040 is located in Lesterville, South Dakota, within Yankton County. It covers approximately 70.32 square miles and serves a population of 299 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57040

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 $102,100. Owner-occupancy is high at 89%, well above the national average.

Median household income is $87,813. 45% 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.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include disability rates above the national average at 24%.

Overall, ZIP code 57040 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

299

population

70.32

sq mi land

Standard

ZIP type

Central (CT)

timezone

57040 ZIP code map

Cities in ZIP code 57040

Below are the cities the US Postal Service accepts for ZIP code 57040. Using any city not on this list may result in mail delivery delays.

City	Status
Lesterville	Preferred

Nearby ZIP codes

57067 Utica (4.3 mi) 57059 Scotland (10.7 mi) 57078 Yankton (11 mi) 57063 Tabor (11.4 mi) 57045 Menno (11.9 mi) 57046 Mission Hill (15.6 mi) 57066 Tyndall (15.9 mi) 57037 Irene (16.4 mi) 57052 Olivet (17.8 mi) 57029 Freeman (18.8 mi)

Demographics updated 06/2026

Population
Total population	299
Population density	4 / sq mi
State FIPS	46
County FIPS	135

Geography
Land area	70.32 sq mi
Water area	0.16 sq mi
Latitude	43.0676
Longitude	-97.5778
Timezone	Central (CT)
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	40.6%	40.5%	41.7%
$50k – $100k	45.6%	38.4%	33.8%
$100k – $200k	13.8%	17.1%	20.1%
Over $200k	0.0%	4.0%	4.4%

Demographics & statistics

299

Population

People per sq mi

60.5

Median age

$87,813

Median household income

$42,239

Per capita income

$102,100

Median home value

$715

Median monthly rent

88.9%

Home ownership

1.7%

Poverty rate

2.7%

Unemployment

146

Housing units

10.3%

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	33	11.0%
18 and over	266	89.0%
65 and over	109	36.5%
Median age	60.5 years

Race & ethnicity

White 99%

Hispanic or Latino 0.3%

American Indian / Alaska Native 0.3%

Two or more races 0.3%

Group	Count	%
White	297	99%
Hispanic or Latino	1	0.3%
American Indian / Alaska Native	1	0.3%
Two or more races	1	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.6%	40.5%	41.7%
$50k – $100k	45.6%	38.4%	33.8%
$100k – $200k	13.8%	17.1%	20.1%
Over $200k	0.0%	4.0%	4.4%

Under $10k 0.7%

$10k–$15k 2.6%

$15k–$25k 4.6%

$35k–$50k 15.7%

$50k–$75k 22.2%

$75k–$100k 22.2%

$100k–$150k 24.2%

$150k–$200k 5.9%

$200k+ 2.0%

Range	% of households
Under $10k	0.7%
$10k–$15k	2.6%
$15k–$25k	4.6%
$35k–$50k	15.7%
$50k–$75k	22.2%
$75k–$100k	22.2%
$100k–$150k	24.2%
$150k–$200k	5.9%
$200k+	2.0%
Median income	$87,813

Housing

Home values

Under $50k 15.4%

$50k–$100k 33.8%

$100k–$150k 13.2%

$150k–$200k 4.4%

$200k–$300k 24.3%

$300k–$500k 8.8%

Housing overview

Metric	Value
Median home value	$102,100
Median rent / month	$715
Owner occupied	88.9%
Renter occupied	11.1%
Vacant	6.1%
Single-family detached	85.3%
Large apartment buildings	0.0%
Mobile homes	12.3%
Median rooms	6.8
Avg household size (owned)	2.03

Year built

Era	%
2020 or later	0.6%
2010–2019	1.2%
2000–2009	11.7%
1990–1999	8.0%
1980–1989	1.8%
1970–1979	19.6%
1960–1969	8.0%
1950–1959	11.7%
1940–1949	0.0%
1939 or earlier	37.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	9.2%
2 bedrooms	23.9%
3 bedrooms	40.5%
4 bedrooms	19.0%
5+ bedrooms	7.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	2.0%
2 vehicles	33.3%
3 or more	61.4%

Heating fuel

Fuel type	%
Utility gas	3.9%
Electricity	19.6%
Propane / LP gas	58.8%
Fuel oil	7.2%

Households & families

Household type	Count	%
Married-couple family	96	62.7%
Cohabiting couple	15	9.8%
Male householder, no spouse	24	15.7%
Female householder, no spouse	18	11.8%
Households with children under 18	25	16.3%
Households with seniors (65+)	69	45.1%
Average household size	1.95

Marital status

Status	Male	Female
Never married	20.9%	6.6%
Married	64.7%	74.6%
Separated	0.7%	0.0%
Widowed	2.6%	14.8%
Divorced	11.1%	4.1%

Education

Less than 9th grade 1.2%

Some HS, no diploma 6.0%

HS graduate 43.7%

Some college, no degree 25.0%

Associate's degree 13.9%

Bachelor's degree 7.5%

Graduate / professional 2.8%

Metric	%
HS diploma or higher	92.9%
Bachelor's or higher	10.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	2	10.5%
Elementary school	8	42.1%
High school	9	47.4%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 24.2%

Agriculture & mining 23.6%

Retail trade 17.0%

Manufacturing 11.0%

Professional & management 7.7%

Construction 5.5%

Public administration 4.9%

Finance & real estate 2.7%

Wholesale trade 1.1%

Arts, food & hospitality 1.1%

Other services 1.1%

Occupation

Category	%
Management, business & arts	48.4%
Service	13.2%
Sales & office	13.7%
Natural resources & construction	14.3%
Production & transportation	10.4%

Employment type

Type	%
Private sector	57.1%
Government	17.0%
Self-employed	25.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.0%
Carpool	9.5%
Public transit	0.0%
Walk	1.1%
Work from home	8.4%
Other means	0.0%
Avg commute (minutes)	22.8

Poverty

All people 1.7%

Under 18 years 0.0%

18 and over 1.9%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.1%
Retirement income	15.7%
Supplemental Security	2.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	38.0%
High blood pressure	32.3%
High cholesterol	31.9%
Diabetes	9.1%
Heart disease	7.1%
Stroke	3.1%
Asthma	8.7%
Arthritis	24.0%
Kidney disease	2.9%
Pulmonary disease	6.1%
Cancer	7.5%

Behavior / access	%
Smoking	18.6%
Binge drinking	19.2%
No physical activity	22.8%
Less than 7 hrs sleep	29.0%
Depression	15.2%
Fair or poor health	11.4%
Poor mental health	10.2%
Poor physical health	8.8%
No health insurance	11.7%
Visited doctor (checkup)	76.5%
Visited dentist	68.9%
Cholesterol screening	90.2%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	7	2.6%

Disability	%
Any disability	23.7%
Under 18	0.0%
18–64 years	13.4%
65 and over	45.9%

Health insurance coverage

Type	%
Private insurance	70.9%
Public insurance	38.5%
No insurance	6.0%
Uninsured under 19	15.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	285	95.3%
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)	299	100.0%
Born in same state	299	100.0%
Born in different state	245	81.9%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	25	8.4%
Arab	13	4.3%
French	9	3%

Ancestry	Count	%
English	7	2.3%
German	2	0.7%
Italian	1	0.3%

Technology access

Metric	% of households
Computer access	51.2%
Internet access	76.5%

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

Frequently asked questions about ZIP code 57040

What city is ZIP code 57040 in?

ZIP code 57040 is primarily assigned to Lesterville, South Dakota.

What county is ZIP code 57040 in?

ZIP code 57040 falls within Yankton County, South Dakota.

Does ZIP code 57040 have an older population?

37% of residents in ZIP code 57040 are 65 or older, above the national average of ~17%.

Is ZIP code 57040 mostly owner-occupied?

89% of occupied units in ZIP code 57040 are owner-occupied, well above the national average.

How educated is the population of ZIP code 57040?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 57040 have a large retiree population?

45% of households in ZIP code 57040 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 57040 in?

ZIP code 57040 observes the CST timezone.