Letcher ZIP Codes — Sanborn County, SD

There is one unique ZIP code in Letcher, South Dakota and it is 57359. Area code: 605.

ZIP codes

153.91

sq mi land

0.07

sq mi water

605

area code

Letcher, SD ZIP code map

About Letcher, SD

Letcher, SD, is a quaint city located in Sanborn County. This small community features a tight-knit atmosphere, welcoming residents and visitors alike. Known for its rural charm and scenic landscapes, Letcher provides a peaceful living environment in the heart of South Dakota.

Location & geography

Letcher is situated in the southeastern part of South Dakota, approximately 27 miles northwest of the larger city of Mitchell. The city covers a land area of 153.91 square miles, with a small water area of 0.07 square miles. The terrain is characteristic of the Great Plains, offering expansive views and agricultural lands.

Community & economy

The character of Letcher embodies the values of rural America, with a focus on community and family. Local industries primarily revolve around agriculture, contributing to daily life and the economy. Residents enjoy a slower pace of life, with opportunities for outdoor activities and community events throughout the year.

Transportation

Major highways, including South Dakota Highway 34, provide easy access to and from Letcher. The nearest airport with commercial services is Mitchell Municipal Airport, located approximately 27 miles away. Public transportation options are limited, highlighting the need for personal vehicles for most residents.

History

Letcher was founded in the early 20th century, emerging primarily as a hub for agricultural development in the region. Over the decades, it has maintained a strong agricultural presence, with farming remaining a key industry. Notable events in its history include various local fairs and gatherings that celebrate the community's agricultural roots.

Did you know?

One surprising fact about Letcher is its rich history in farming and how it has shaped the local culture. Despite its small size, Letcher serves as an example of rural resilience and community spirit in South Dakota.

ZIP codes for Letcher, SD (1)

ZIP code	City	County	Map
57359	Letcher	Sanborn	View map

Demographics & statistics

612

Population

38.4

Median age

$90,000

Median household income

$41,601

Per capita income

$158,600

Median home value

$935

Median monthly rent

82.8%

Home ownership

5.6%

Poverty rate

1.2%

Unemployment

246

Housing units

22.5%

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	160	26.1%
18 and over	452	73.9%
65 and over	104	17.0%
Median age	38.4 years

Race & ethnicity

White 86.2%

Hispanic or Latino 5.3%

Other race 4.6%

Two or more races 3.9%

Group	Count	%
White	557	86.2%
Hispanic or Latino	34	5.3%
Other race	30	4.6%
Two or more races	25	3.9%

Household income

Under $10k 2.2%

$10k–$15k 3.4%

$15k–$25k 7.3%

$25k–$35k 0.4%

$35k–$50k 8.6%

$50k–$75k 23.7%

$75k–$100k 16.4%

$100k–$150k 11.2%

$150k–$200k 17.2%

$200k+ 9.5%

Range	% of households
Under $10k	2.2%
$10k–$15k	3.4%
$15k–$25k	7.3%
$25k–$35k	0.4%
$35k–$50k	8.6%
$50k–$75k	23.7%
$75k–$100k	16.4%
$100k–$150k	11.2%
$150k–$200k	17.2%
$200k+	9.5%
Median income	$90,000

Housing

Home values

Under $50k 16.1%

$50k–$100k 11.5%

$100k–$150k 16.1%

$150k–$200k 20.3%

$200k–$300k 17.2%

$300k–$500k 9.4%

$500k–$1M 5.2%

$1M+ 4.2%

Housing overview

Metric	Value
Median home value	$158,600
Median rent / month	$935
Owner occupied	82.8%
Renter occupied	17.2%
Vacant	18.9%
Single-family detached	91.6%
Large apartment buildings	0.0%
Mobile homes	4.2%
Median rooms	7.1
Avg household size (owned)	2.52

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	9.1%
1990–1999	4.2%
1980–1989	9.1%
1970–1979	9.8%
1960–1969	8.7%
1950–1959	5.9%
1940–1949	8.0%
1939 or earlier	45.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.5%
2 bedrooms	17.8%
3 bedrooms	44.1%
4 bedrooms	30.8%
5+ bedrooms	2.8%

Vehicles per household

Vehicles	% of households
No vehicle	5.6%
1 vehicle	13.8%
2 vehicles	37.1%
3 or more	43.5%

Heating fuel

Fuel type	%
Utility gas	0.9%
Electricity	22.8%
Propane / LP gas	70.3%
Fuel oil	3.4%
No fuel used	1.3%

Households & families

Household type	Count	%
Married-couple family	140	60.3%
Cohabiting couple	16	6.9%
Male householder, no spouse	25	10.8%
Female householder, no spouse	51	22.0%
Households with children under 18	92	39.7%
Households with seniors (65+)	79	34.1%
Average household size	2.64

Marital status

Status	Male	Female
Never married	33.9%	15.6%
Married	48.2%	61.2%
Separated	0.0%	0.0%
Widowed	1.2%	12.5%
Divorced	16.7%	10.7%

Education

Less than 9th grade 0.7%

Some HS, no diploma 2.9%

HS graduate 32.9%

Some college, no degree 19.4%

Associate's degree 21.5%

Bachelor's degree 19.1%

Graduate / professional 3.4%

Metric	%
HS diploma or higher	96.4%
Bachelor's or higher	22.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	8	4.6%
Kindergarten	1	0.6%
Elementary school	93	53.1%
High school	36	20.6%
College / grad school	37	21.1%

Employment

Industry of employment

Education & healthcare 23.2%

Agriculture & mining 17.6%

Transportation & utilities 12.6%

Manufacturing 9.4%

Public administration 8.8%

Professional & management 8.2%

Construction 5.9%

Arts, food & hospitality 5.6%

Other services 5.6%

Retail trade 2.3%

Wholesale trade 0.6%

Finance & real estate 0.3%

Occupation

Category	%
Management, business & arts	47.8%
Service	9.1%
Sales & office	11.4%
Natural resources & construction	13.5%
Production & transportation	18.2%

Employment type

Type	%
Private sector	60.1%
Government	22.9%
Self-employed	16.4%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	68.6%
Carpool	7.3%
Public transit	0.0%
Walk	1.2%
Other means	2.6%
Avg commute (minutes)	20.1

Poverty

All people 5.6%

Under 18 years 5.8%

18 and over 5.5%

Married-couple families 0.0%

Female-led households 16.0%

Income support

Source	% of households
Social Security	32.8%
Retirement income	15.5%
Supplemental Security	1.3%
Cash public assistance	4.3%
Food stamps / SNAP	4.7%

Health indicators

Condition	%
High blood pressure	32.2%
High cholesterol	32.0%
Heart disease	7.0%
Stroke	3.1%
Asthma	8.6%
Arthritis	24.7%
Kidney disease	2.9%
Pulmonary disease	6.1%
Cancer	7.6%

Behavior / access	%
Binge drinking	19.4%
No physical activity	22.4%
Less than 7 hrs sleep	27.9%
Fair or poor health	11.2%
Poor mental health	10.3%
Poor physical health	8.9%
No health insurance	11.4%
Visited doctor (checkup)	75.0%
Visited dentist	68.0%
Cholesterol screening	89.9%
Teeth loss	12.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	26	5.8%

Disability	%
Any disability	7.2%
Under 18	1.3%
18–64 years	2.6%
65 and over	31.7%

Health insurance coverage

Type	%
Private insurance	78.4%
Public insurance	21.4%
Uninsured under 19	12.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	581	94.9%
Spanish	22	3.8%
Other Indo-European	22	3.8%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	608	99.3%
Born in same state	608	99.3%
Born in different state	485	79.2%
Foreign born	0	0.0%
Naturalized citizen	4	0.7%
Not a US citizen	2	50.0%

Ancestry

Ancestry	Count	%
Polish	127	20.8%
Italian	41	6.7%
French	31	5.1%

Ancestry	Count	%
Dutch	22	3.6%
Arab	13	2.1%
English	9	1.5%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	88.8%

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

Frequently asked questions

What ZIP codes does Letcher, SD have?

Letcher, SD has one ZIP code: 57359. Each ZIP code serves a distinct delivery area within the city and surrounding region.