ZIP Code 57631 - Glenham South Dakota
Overview
ZIP Code 57631 is located in Glenham South Dakota. Portions of 57631 are also in West Walworth and South Campbell and Glenham (town). 57631 is primarily within Walworth County, with some portions in Campbell County. Regionally, 57631 is located in the Sioux Falls Area.
ZIP Code 57631 Quick Stats
| ZIP Code Name | Glenham |
| Primary County | Walworth County |
| ZIP Code Type | Standard |
| Population (2022) | 348 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57631 Map
57631 Demographics
57631 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in South Dakota based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 57631 is White. The current unemployment level in 57631 is 2.2%.
| Population | 348 |
| Population Growth Rate | 0% |
| Population Density | 3 People per Square Mile |
| Total Households | 138 |
| Percentage High Income Households | 1.4% |
| Median Household Income (2021) | $60,781 |
| Average Adjusted Gross Income (2021) | $314,250 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 99.49% |
57631 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 392 | 99.49% |
| Black | 0 | 0% |
| Hispanic | 2 | 0.51% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57631 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 12 | 5.02% |
| Bachelor Degree | 65 | 27.2% |
| High School Diploma | 82 | 34.31% |
| No High School Diploma | 5 | 2.09% |
| GED or Alternate | 7 | 2.93% |
| 1 or More Years of College | 33 | 13.81% |
| Associates Degree | 22 | 9.21% |
| Masters Degree | 13 | 5.44% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
57631 Geography
| Coordinates | 45.55727005, -100.26333618 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57631 | |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 111 Square Miles |
57631 Schools
| School Districts in 57631 | |
| Elementary Schools in 57631 | |
| Middle Schools in 57631 | |
| High Schools in 57631 |
57631 Weather and Climate Data
| Plant Hardiness Zone | Zone 4b: -25F to -20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | September 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | BSk - Cold Semi-Arid Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 42f - Southern Missouri Coteau Slope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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