Postal Codes

57359 ZIP Code

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ZIP code 57359 covers Letcher, South Dakota, with a population of about 632 and a median household income of $101,250.

Population
6324 per square mile
Median age
38.3about the US average
Median household income
$101,2501.4× the South Dakota median
Poverty rate
9.6%2.8 points below the US average
Median home value
$161,80032% below the South Dakota median
Median rent
$76017% below the South Dakota median
Degree or higher
25.8%9.2 points below the US average
Homeownership
83.5%18.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
17

Where 57359 is

Letcher, South Dakota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population632
Median age38.3
Family households68.7%
Born outside the US0.9%
Speaks a language other than English at home1.3%
White (non-Hispanic)94.5%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino2.5%
Veterans2.9%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$101,250
Income per person$44,929
Poverty rate9.6%
Households on SNAP or cash assistance6.5%

Household income distribution

Under $10k2.2%
$10–15k3.5%
$15–20k1.7%
$20–25k3.0%
$25–30k0.9%
$30–35k0.0%
$35–40k6.1%
$40–45k1.3%
$45–50k0.0%
$50–60k5.7%
$60–75k10.0%
$75–100k15.7%
$100–125k11.3%
$125–150k9.1%
$150–200k16.5%
$200k or more13.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed300
Mean adjusted gross income$81,460
Returns declaring $200,000 or more0%
Returns, under $25k23.3%
Returns, $25k–$50k20.0%
Returns, $50k–$75k16.7%
Returns, $75k–$100k13.3%
Returns, $100k–$200k26.7%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$161,800
Median gross rent$760
Owner-occupied83.5%
Vacant homes18.4%
Median year built1945

What the homes are

Detached house88.3%
2 to 4 units2.8%
5 to 19 units1.8%
Mobile home7.1%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.2%
Bachelor's degree or higher25.8%
High school diploma or higher94.9%
Works from home18%
Drives to work alone70.1%
Takes public transport0%
Commutes 45 minutes or more1.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity36.9% 3.5 pts above the national average of 33.4%
Diagnosed diabetes11.7% same as the national average of 12%
Currently smokes16.7% 3.5 pts above the national average of 13.2%
High blood pressure34% same as the national average of 34.1%
Fair or poor general health17.6% 2.7 pts below the national average of 20.3%
No health insurance (18–64)9% 2.3 pts below the national average of 11.3%
Depression20.8% 1.1 pts below the national average of 21.9%
No leisure-time physical activity24.4% 1 pts below the national average of 25.4%
Arthritis26.7% 1.6 pts above the national average of 25.1%
Binge drinking19% 3 pts above the national average of 16%
Taking blood pressure medication76.3% 1.6 pts above the national average of 74.7%
Cancer (non-skin)9.3% 1.6 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease7.2% 1 pts above the national average of 6.2%
Routine check-up in past year75.4% 1.3 pts below the national average of 76.7%
Cholesterol screening84.8% 1.1 pts below the national average of 85.9%
Cognitive disability13.9% 0.9 pts below the national average of 14.8%
Colorectal screening64.8% 0.5 pts above the national average of 64.3%
COPD7.3% 0.7 pts above the national average of 6.6%
Visited a dentist67.4% 6.1 pts above the national average of 61.3%
Any disability30.2% 0.5 pts below the national average of 30.7%
Hearing disability8.5% 1.8 pts above the national average of 6.7%
High cholesterol35.2% 1 pts below the national average of 36.2%
Independent living disability7.7% 0.7 pts below the national average of 8.4%
Mammography use76.9% 1 pts above the national average of 75.9%
Poor mental health (14+ days)15.4% 1.4 pts below the national average of 16.8%
Mobility disability13% 1 pts below the national average of 14%
Poor physical health (14+ days)13% 0.5 pts below the national average of 13.5%
Self-care disability3.6% same as the national average of 4%
Sleeps under 7 hours29.7% 6.7 pts below the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost11.9% 1.1 pts below the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments17
People employed50
Annual payroll$2,082,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 90.7% of US census tracts
FEMA ratingRelatively High to Very High across the 3 census tracts this ZIP code covers
Expected annual loss92.9 out of 100
Community resilience54 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather98.8Very High at its worst in this ZIP code
Drought98.7Relatively High at its worst in this ZIP code
Ice storm98.2Very High at its worst in this ZIP code
Hail97.4Very High at its worst in this ZIP code
Tornado96.5Very High at its worst in this ZIP code
Cold wave95.9Very High at its worst in this ZIP code
Wildfire95.9Relatively High at its worst in this ZIP code
Strong wind94.7Relatively High at its worst in this ZIP code
River flooding85.2Relatively High at its worst in this ZIP code
Landslide81.6Relatively Low at its worst in this ZIP code
Heat wave43.9Relatively Low at its worst in this ZIP code
Lightning39.5Relatively Moderate at its worst in this ZIP code
Earthquake38Relatively Low at its worst in this ZIP code
Compared with South Dakota and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPSouth DakotaUnited States
Median household income$101,250$72,421$78,538
Income per person$44,929$38,880$43,289
Poverty rate9.6%12%12.4%
Median home value$161,800$236,800$303,400
Median gross rent$760$912$1,348
Homeownership83.5%68.6%65%
Bachelor's degree or higher25.8%31.1%35%
Unemployment rate1.2%3%5.2%
Works from home18%9.3%13.5%
Born outside the US0.9%3.9%13.9%
Median age38.337.738.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMITCHELL, SD US16.4 km away
Rain in a year26 in
Snow in a year41 in

Average high and low by month

January27.3°F / 9.3°F0.61 in rain, 5.6 in snow
February32.4°F / 13.4°F0.76 in rain, 8.3 in snow
March45.2°F / 25.1°F1.26 in rain, 5.8 in snow
April58.6°F / 36.5°F2.76 in rain, 6 in snow
May70.3°F / 48.7°F3.69 in rain
June80.9°F / 59.5°F3.95 in rain
July87°F / 65.3°F3.02 in rain
August84°F / 62.1°F3.09 in rain
September76.1°F / 53°F2.64 in rain
October60.9°F / 39.1°F2.11 in rain, 0.6 in snow
November44.8°F / 25.5°F1.12 in rain, 4.1 in snow
December30.8°F / 14.5°F0.77 in rain, 10.2 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Sanborn Central School District 55-567% of this ZIP code's land area
Plankinton School District 01-114.9% of this ZIP code's land area
Woonsocket School District 55-410.6% of this ZIP code's land area
Mitchell School District 17-26.7% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability42more vulnerable than 42% of US census tracts
Socioeconomic status30more vulnerable than 30% of US census tracts
Household characteristics52more vulnerable than 52% of US census tracts
Racial and ethnic minority status11more vulnerable than 11% of US census tracts
Housing type and transport69more vulnerable than 69% of US census tracts
Walkability5.7 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

57385 Woonsocket, SD19.1 km away
57314 Artesian, SD19.4 km away
57363 Mount Vernon, SD20.4 km away
57301 Mitchell, SD23.4 km away
57358 Lane, SD28.1 km away
57340 Fulton, SD28.5 km away
57368 Plankinton, SD29.3 km away
57337 Fedora, SD32.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Sanborn County76.2% of this ZIP code's land area
Aurora County14.9% of this ZIP code's land area
Davison County8.9% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area153.91 sq mi
Water area0.07 sq mi
Population density4 people per sq mi
Latitude, longitude43.8923, -98.1743

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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