ZIP code · Alcester · South Dakota · United States

ZIP code 57001 — Alcester

ZIP code 57001 serves Alcester, South Dakota.

Postal code
57001
Single source Value from one source, not cross-checked.
City
Alcester
County
Union FIPS 46127
State
South Dakota
Country
United States
Coordinates
43.0047, -96.6332 — precision precise (locality)
View on OpenStreetMap
Population
1,550 (ZCTA, ACS 5-year)
Population density
16 / sq mi
Land area
99.2 sq mi (257.1 km²) (ZCTA, ACS 5-year)
Median household income
$72,885
Per-capita income
$34,428
Median age
47.3
Households
636
Housing units
663
Median home value
$158,600
Median gross rent
$821 / month
Congressional district
SD At-large (119th Congress)
USDA hardiness zone
5a (-20 to -15 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Chicago (UTC−6 / UTC−5 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 85°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F273245597181858376624531
Avg low °F71123344758625950362313
Precip in0.70.81.73.14.04.43.23.63.32.51.31.3

NOAA 1991–2020 climate normals from the nearest station: HAWARDEN (7.5 mi) · NOAA NCEI

Places in ZIP 57001

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