ZIP Code 57328 is located in Corsica South Dakota. Portions of 57328 are also in Iowa Township (Douglas County) and Grandview Township (Douglas County) and Garfield Township (Douglas County) and Walnut Grove Township and Holland Township and Clark Township (Douglas County) and Valley Township (Douglas County) and Joubert Township and Lincoln Township (Douglas County) and Washington Township (Douglas County). 57328 is entirely within Douglas County. Regionally, 57328 is located in the Sioux Falls Area.
| ZIP Code Name | Corsica |
| Primary County | Douglas County |
| ZIP Code Type | Standard |
| Population (2022) | 1,173 |
| Area Code(s) | 605 |
| Current Time | CDT |
57328 can be classified socioeconomically as 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 57328 is White. The majority race/ethnicity attending public schools in 57328 is White. The current unemployment level in 57328 is 2.2%.
| Population | 1,173 |
| Population Growth Rate | 4.84% |
| Population Density | 7 People per Square Mile |
| Total Households | 437 |
| Percentage High Income Households | 3.7% |
| Median Household Income (2021) | $76,146 |
| Average Adjusted Gross Income (2021) | $340,470 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicty | White - 98.78% |
| Public School Majority Race/Ethnicty | White - 98.21% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 1,129 | 98.78% |
| Black | 0 | 0% |
| Hispanic | 6 | 0.52% |
| Asian | 0 | 0% |
| Native American | 8 | 0.7% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 110 | 99.1% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 1 | 0.9% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 29 | 4.64% |
| Bachelor Degree | 69 | 11.04% |
| High School Diploma | 345 | 55.2% |
| No High School Diploma | 10 | 1.6% |
| GED or Alternate | 21 | 3.36% |
| 1 or More Years of College | 93 | 14.88% |
| Associates Degree | 42 | 6.72% |
| Masters Degree | 11 | 1.76% |
| Professional Degree | 5 | 0.8% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 43.43407440,-98.43582153 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57328 | Iowa Township (Douglas County), Grandview Township (Douglas County), Garfield Township (Douglas County), Walnut Grove Township, Holland Township, Clark Township (Douglas County), Valley Township (Douglas County), Joubert Township, Lincoln Township (Douglas County), Washington Township (Douglas County) |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 164 Square Miles |
| School Districts in 57328 | |
| Elementary Schools in 57328 | |
| Middle Schools in 57328 | |
| High Schools in 57328 |
| Plant Hardiness Zone | Zone 5a: -20F to -15F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 42e - Southern Missouri Coteau | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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