ZIP Code 57330 - Delmont South Dakota
Overview
ZIP Code 57330 is located in Delmont South Dakota. Portions of 57330 are also in Clearfield Colony and Greenwood Colony and Choteau Creek Township and Belmont Township (Douglas County) and East Choteau Township and Lincoln Township (Douglas County) and Kennedy Township and Independence Township (Douglas County). 57330 is primarily within Douglas County, with some portions in Charles Mix County. Regionally, 57330 is located in the Sioux Falls Area.
ZIP Code 57330 Quick Stats
| ZIP Code Name | Delmont |
| Primary County | Douglas County |
| ZIP Code Type | Standard |
| Population (2022) | 548 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57330 Map
57330 Demographics
57330 can be classified socioeconomically as Lower 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 57330 is White. The majority race/ethnicity attending public schools in 57330 is White. The current unemployment level in 57330 is 2.2%.
| Population | 548 |
| Population Growth Rate | -10.54% |
| Population Density | 5 People per Square Mile |
| Total Households | 268 |
| Percentage High Income Households | 3% |
| Median Household Income (2021) | $54,643 |
| Average Adjusted Gross Income (2021) | $143,300 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 93.54% |
| Public School Majority Race/Ethnicity | White - 100% |
57330 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 449 | 93.54% |
| Black | 0 | 0% |
| Hispanic | 21 | 4.38% |
| Asian | 0 | 0% |
| Native American | 10 | 2.08% |
| Hawaiian/Pac. Islander | 0 | 0% |
57330 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 17 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57330 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 8 | 2.14% |
| Bachelor Degree | 55 | 14.75% |
| High School Diploma | 128 | 34.32% |
| No High School Diploma | 5 | 1.34% |
| GED or Alternate | 29 | 7.77% |
| 1 or More Years of College | 55 | 14.75% |
| Associates Degree | 45 | 12.06% |
| Masters Degree | 6 | 1.61% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 42 | 11.26% |
57330 Geography
| Coordinates | 43.25667572, -98.17166901 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57330 | |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 104 Square Miles |
57330 Schools
| School Districts in 57330 | |
| Elementary Schools in 57330 | |
| Middle Schools in 57330 | |
| High Schools in 57330 |
57330 Weather and Climate Data
| 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 | 42f - Southern Missouri Coteau Slope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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