57718 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 57718 is White. The majority race/ethnicity attending public schools in 57718 is White. The current unemployment level in 57718 is 1.9%.
| Population | 7,507 |
| Population Growth Rate | 0.65% |
| Population Density | 270 People per Square Mile |
| Total Households | 2,449 |
| Percentage High Income Households | 1.3% |
| Median Household Income (2021) | $77,963 |
| Average Adjusted Gross Income (2021) | $512,090 |
| Current Unemployment Rate (September 2025) | 1.9% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicty | White - 92.38% |
| Public School Majority Race/Ethnicty | White - 69.09% |
57718 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 6,939 | 92.38% |
| Black | 36 | 0.48% |
| Hispanic | 335 | 4.46% |
| Asian | 105 | 1.4% |
| Native American | 96 | 1.28% |
| Hawaiian/Pac. Islander | 0 | 0% |
57718 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 266 | 77.78% |
| Black | 4 | 1.17% |
| Hispanic | 35 | 10.23% |
| Asian | 1 | 0.29% |
| Native American | 34 | 9.94% |
| Hawaiian/Pac. Islander | 2 | 0.58% |
57718 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 398 | 9.77% |
| Bachelor Degree | 684 | 16.79% |
| High School Diploma | 1,067 | 26.2% |
| No High School Diploma | 17 | 0.42% |
| GED or Alternate | 152 | 3.73% |
| 1 or More Years of College | 974 | 23.91% |
| Associates Degree | 535 | 13.14% |
| Masters Degree | 171 | 4.2% |
| Professional Degree | 16 | 0.39% |
| Doctorate Degree | 59 | 1.45% |