Home > SD > Walworth County > Glenham > Zip 57631

Zip Code 57631 — Glenham, SD

57631 is a ZIP Code associated with Glenham, SD, located within Walworth. The postal region supports an estimated population of 364 residents across Data Pending housing units, with a population density of 1.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (45.581950, -100.287790)

Data MetricLocal Statistic
Postal / Zip Code57631
Primary CityGlenham
State / ProvinceSD
CountyWalworth
Total Population364
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.1 people/sq mi
TimezoneAmerica/Chicago

How 57631 Compares

MetricZIP 57631Walworth CountySD State Average
Population3641,925906,188
Median IncomeData PendingN/AN/A
Population Density1.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 57646Mound City13.4 mi272N/A
Zip 57472Selby13.9 mi1,165N/A
Zip 57658Wakpala14.1 mi319N/A
Zip 57601Mobridge18.4 mi3,422N/A
Zip 57452Java20.4 mi136N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →