57220 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 57220 is White. The current unemployment level in 57220 is 2.2%.
| Population | 878 |
| Population Growth Rate | 29.71% |
| Population Density | 7 People per Square Mile |
| Total Households | 323 |
| Median Household Income (2021) | $88,438 |
| Average Adjusted Gross Income (2021) | $426,200 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicty | White - 97.78% |
57220 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 838 | 97.78% |
| Black | 0 | 0% |
| Hispanic | 19 | 2.22% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57220 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 12 | 2.75% |
| Bachelor Degree | 77 | 17.62% |
| High School Diploma | 117 | 26.77% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 33 | 7.55% |
| 1 or More Years of College | 59 | 13.5% |
| Associates Degree | 120 | 27.46% |
| Masters Degree | 9 | 2.06% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 10 | 2.29% |