Postal Codes

57642 ZIP Code

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ZIP code 57642 covers Mc Laughlin, South Dakota, with a population of about 1,949 and a median household income of $56,528.

Population
1,9493 per square mile
Median age
27.411.3 points below the US average
Median household income
$56,52822% below the South Dakota median
Poverty rate
43.2%30.8 points above the US average
Typical home value
$105,019up 43.1% in five years
Median rent
$49646% below the South Dakota median
Degree or higher
20.7%14.3 points below the US average
Homeownership
51.4%13.6 points below the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
23

Where 57642 is

Mc Laughlin, 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

Population1,949
Median age27.4
Family households74.7%
Born outside the US0.2%
Speaks a language other than English at home14.4%
White (non-Hispanic)23.7%
Black (non-Hispanic)0.2%
Asian (non-Hispanic)0%
Hispanic or Latino0%
Veterans7.6%
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$56,528
Income per person$21,597
Poverty rate43.2%
Households on SNAP or cash assistance31.6%

Household income distribution

Under $10k9.2%
$10–15k9.0%
$15–20k5.1%
$20–25k7.9%
$25–30k6.1%
$30–35k3.8%
$35–40k5.1%
$40–45k0.2%
$45–50k1.4%
$50–60k6.9%
$60–75k10.3%
$75–100k12.6%
$100–125k9.6%
$125–150k2.2%
$150–200k5.1%
$200k or more5.6%

Income as declared to the IRS

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

Tax returns filed540
Mean adjusted gross income$45,663
Returns declaring $200,000 or more0%
Returns, under $25k38.9%
Returns, $25k–$50k27.8%
Returns, $50k–$75k16.7%
Returns, $75k–$100k7.4%
Returns, $100k–$200k9.3%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$78,500
Median gross rent$496
Rent as a share of household income17.3%
Owner-occupied51.4%
Vacant homes16.3%
Median year built1974

What the homes are

Detached house83.1%
2 to 4 units7.7%
5 to 19 units1.5%
Mobile home7.7%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$105,019as of 2026-07
Typical home value, 1 yearup 5.2%
Typical home value, 5 yearsup 43.1%
Typical home value since 2000
202020232026$105,019$62,521

$62,521 in 2020 to $105,019 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate21.9%
Bachelor's degree or higher20.7%
High school diploma or higher85.3%
Works from home22.1%
Drives to work alone68.7%
Takes public transport0%
Commutes 45 minutes or more2.6%
Health

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

Obesity45.6% 12.2 pts above the national average of 33.4%
Diagnosed diabetes20.7% 8.7 pts above the national average of 12%
Currently smokes32.6% 19.4 pts above the national average of 13.2%
High blood pressure39.8% 5.7 pts above the national average of 34.1%
Fair or poor general health34.4% 14.1 pts above the national average of 20.3%
No health insurance (18–64)14.6% 3.3 pts above the national average of 11.3%
Depression23.8% 1.9 pts above the national average of 21.9%
No leisure-time physical activity38.1% 12.7 pts above the national average of 25.4%
Arthritis29.5% 4.4 pts above the national average of 25.1%
Binge drinking16.2% same as the national average of 16%
Taking blood pressure medication74% 0.7 pts below the national average of 74.7%
Cancer (non-skin)6.7% 1 pts below the national average of 7.7%
Current asthma13.9% 3.5 pts above the national average of 10.4%
Coronary heart disease10% 3.8 pts above the national average of 6.2%
Routine check-up in past year74.1% 2.6 pts below the national average of 76.7%
Cholesterol screening77.3% 8.6 pts below the national average of 85.9%
Cognitive disability23.4% 8.6 pts above the national average of 14.8%
Colorectal screening50.4% 13.9 pts below the national average of 64.3%
COPD12.3% 5.7 pts above the national average of 6.6%
Visited a dentist47.1% 14.2 pts below the national average of 61.3%
Any disability46.5% 15.8 pts above the national average of 30.7%
Lacks emotional support29.4% 4.6 pts above the national average of 24.8%
Food insecurity38.1% 21 pts above the national average of 17.1%
Received food stamps35.5% 21.2 pts above the national average of 14.3%
Hearing disability12.7% 6 pts above the national average of 6.7%
High cholesterol34% 2.2 pts below the national average of 36.2%
Housing insecurity28.2% 14.4 pts above the national average of 13.8%
Independent living disability16.2% 7.8 pts above the national average of 8.4%
Lacks transport21% 11.8 pts above the national average of 9.2%
Loneliness30.2% 4.2 pts below the national average of 34.4%
Mammography use70.7% 5.2 pts below the national average of 75.9%
Poor mental health (14+ days)22% 5.2 pts above the national average of 16.8%
Mobility disability23.8% 9.8 pts above the national average of 14%
Poor physical health (14+ days)20.8% 7.3 pts above the national average of 13.5%
Self-care disability8.2% 4.2 pts above the national average of 4%
Utility shut-off threat25% 16.2 pts above the national average of 8.8%
Sleeps under 7 hours37.2% 0.8 pts above the national average of 36.4%
Stroke6% 2.6 pts above the national average of 3.4%
All natural teeth lost34.1% 21.1 pts above the national average of 13%
Vision disability12.9% 7.3 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments23
People employed160
Annual payroll$4,928,000
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 95.8% of US census tracts
FEMA ratingRelatively High to Very High across the 3 census tracts this ZIP code covers
Expected annual loss91 out of 100
Community resilience0.8 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.

Cold wave99.9Very High at its worst in this ZIP code
Winter weather99.4Very High at its worst in this ZIP code
Hail96.1Very High at its worst in this ZIP code
Strong wind96Very High at its worst in this ZIP code
Wildfire95.3Relatively High at its worst in this ZIP code
Drought86.7Relatively Low at its worst in this ZIP code
Ice storm85.2Relatively High at its worst in this ZIP code
Landslide77.1Very Low at its worst in this ZIP code
Lightning73.7Relatively High at its worst in this ZIP code
River flooding69.8Relatively High at its worst in this ZIP code
Tornado68.9Relatively Moderate at its worst in this ZIP code
Heat wave34.2Relatively Low at its worst in this ZIP code
Earthquake13.9Very 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$56,528$72,421$78,538
Income per person$21,597$38,880$43,289
Poverty rate43.2%12%12.4%
Median home value$78,500$236,800$303,400
Median gross rent$496$912$1,348
Homeownership51.4%68.6%65%
Bachelor's degree or higher20.7%31.1%35%
Unemployment rate21.9%3%5.2%
Works from home22.1%9.3%13.5%
Born outside the US0.2%3.9%13.9%
Median age27.437.738.7
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 stationMC LAUGHLIN, SD US9.6 km away
Rain in a year20 in
Snow in a year35 in

Average high and low by month

January24.1°F / 3.6°F0.5 in rain, 7.5 in snow
February28.4°F / 6.7°F0.49 in rain, 6.5 in snow
March41.7°F / 18.6°F0.94 in rain, 3.7 in snow
April56.2°F / 29.7°F1.69 in rain, 2.1 in snow
May68.1°F / 41.9°F3.17 in rain, 0.2 in snow
June78.4°F / 52.7°F3.34 in rain
July85.4°F / 58°F3.03 in rain
August83.9°F / 55.2°F2.47 in rain
September73.6°F / 45.3°F1.45 in rain
October57.4°F / 31.8°F1.77 in rain, 0.7 in snow
November41.1°F / 18.8°F0.65 in rain, 4 in snow
December28.5°F / 8.6°F0.58 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 supermarket32% of this ZIP code's area
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 3 school districts, so the address decides which one, not the ZIP code.

McLaughlin School District 15-280.3% of this ZIP code's land area
Smee School District 15-316.7% of this ZIP code's land area
Fort Yates Public School District 42.2% 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 vulnerability77more vulnerable than 77% of US census tracts
Socioeconomic status85more vulnerable than 85% of US census tracts
Household characteristics51more vulnerable than 51% of US census tracts
Racial and ethnic minority status81more vulnerable than 81% of US census tracts
Housing type and transport58more vulnerable than 58% of US census tracts
Walkability4.3 out of 20Least walkable
Nearby ZIP codes

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

57659 Walker, SD15.9 km away
57621 Bullhead, SD19.1 km away
57639 Little Eagle, SD23.3 km away
58568 Selfridge, ND26.7 km away
57641 Mc Intosh, SD27.7 km away
58538 Fort Yates, ND30.2 km away
57658 Wakpala, SD34 km away
58569 Shields, ND44.4 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.

Corson County97% of this ZIP code's land area
Sioux County3% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area693.28 sq mi
Water area34.55 sq mi
Population density3 people per sq mi
Latitude, longitude45.8763, -100.8915

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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