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Delmont city, SD
ZIP 57330 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Middle ClassLow Snow Area
Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 57330
57330 has a population of 548 with a median age of 35.5 yrs (46.4% male).
Health & Community Indicators in 57330
Historical Trends in 57330 (2020–Present)
Since 2020, population grew 20.4%, median income rose 1.4% (inflation-adjusted), home values increased 42.7%.
People & Community key statistics
| Population | |
|---|---|
| Population | 548 |
| Median age | 35.5 |
| Poverty rate | 19.2% |
| Demographics | |
|---|---|
| White | 93.4% |
| Hispanic | 1.6% |
| Black | 0.0% |
| Asian | 0.0% |