57018 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 57018 is White. The majority race/ethnicity attending public schools in 57018 is White. The current unemployment level in 57018 is 2.2%.
| Population | 1,445 |
| Population Growth Rate | 13.95% |
| Population Density | 16 People per Square Mile |
| Total Households | 540 |
| Percentage High Income Households | 0.6% |
| Median Household Income (2021) | $81,250 |
| Average Adjusted Gross Income (2021) | $374,820 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 98.65% |
| Public School Majority Race/Ethnicity | White - 84.29% |
57018 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 1,460 | 98.65% |
| Black | 5 | 0.34% |
| Hispanic | 14 | 0.95% |
| Asian | 0 | 0% |
| Native American | 1 | 0.07% |
| Hawaiian/Pac. Islander | 0 | 0% |
57018 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|
| White | 826 | 86.22% |
| Black | 66 | 6.89% |
| Hispanic | 63 | 6.58% |
| Asian | 0 | 0% |
| Native American | 3 | 0.31% |
| Hawaiian/Pac. Islander | 0 | 0% |
57018 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|
| Less Than 1 Year of College | 105 | 11.84% |
| Bachelor Degree | 107 | 12.06% |
| High School Diploma | 285 | 32.13% |
| No High School Diploma | 14 | 1.58% |
| GED or Alternate | 62 | 6.99% |
| 1 or More Years of College | 166 | 18.71% |
| Associates Degree | 105 | 11.84% |
| Masters Degree | 40 | 4.51% |
| Professional Degree | 3 | 0.34% |
| Doctorate Degree | 0 | 0% |
