ZIP code · Mc Intosh · South Dakota · United States

ZIP code 57641 — Mc Intosh

ZIP code 57641 serves Mc Intosh, South Dakota.

Postal code
57641
Single source Value from one source, not cross-checked.
City
Mc Intosh
County
Corson FIPS 46031
State
South Dakota
Country
United States
Coordinates
45.7084, -101.1546 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
244 (ZCTA, ACS 5-year)
Population density
1 / sq mi
Land area
479.3 sq mi (1,241.3 km²) (ZCTA, ACS 5-year)
Median household income
$56,667
Per-capita income
$36,869
Median age
54.3
Households
110
Housing units
153
Median home value
$62,500
Median gross rent
$613 / month
Congressional district
SD At-large (119th Congress)
USDA hardiness zone
4b (-25 to -20 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
605
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 86°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F263043576979868575594230
Avg low °F71121324353585748352111
Precip in0.40.50.71.42.43.52.71.91.41.50.50.4

NOAA 1991–2020 climate normals from the nearest station: MC INTOSH 6 SE (10.7 mi) · NOAA NCEI

Places in ZIP 57641

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page