ZIP Code 57233 is located in Erwin South Dakota. Portions of 57233 are also in Hartland Township (Kingsbury County) and Erwin (town) and Badger Township (Kingsbury County) and Cleveland Township (Hamlin County). 57233 is primarily within Kingsbury County, with some portions in Hamlin County. Regionally, 57233 is located in the Sioux Falls Area.
| ZIP Code Name | Erwin |
| Primary County | Kingsbury County |
| ZIP Code Type | Standard |
| Population (2022) | 257 |
| Area Code(s) | 605 |
| Current Time | CST |
| Population | 257 |
| Population Growth Rate | 111.29% |
| Population Density | 6 People per Square Mile |
| Total Households | 77 |
| Current Unemployment Rate (November 2024) | 1.5% |
| Majority Race/Ethnicty | White - 100.00% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 262 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 4 | 3.45% |
| Bachelor Degree | 6 | 5.17% |
| High School Diploma | 58 | 50% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 8 | 6.9% |
| 1 or More Years of College | 12 | 10.34% |
| Associates Degree | 25 | 21.55% |
| Masters Degree | 0 | 0% |
| Professional Degree | 3 | 2.59% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 44.50868225,-97.39881897 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57233 | |
| Region | Sioux Falls Area |
| Metropolitan/Micropolitan Stat Area | Watertown, SD |
| Time Zone | Central Standard Time |
| IANA Timezone | America/Chicago |
| Area | 45 Square Miles |
| School Districts in 57233 | |
| Elementary Schools in 57233 | |
| Middle Schools in 57233 | |
| High Schools in 57233 |
| 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 | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 46k - Prairie Coteau | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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