ZIP Code 57650 is located in Ralph South Dakota. Portions of 57650 are also in North Harding. 57650 is entirely within Harding County. Regionally, it is located in the Rapid City Area.
| ZIP Code Name | Ralph |
| Primary County | Harding County |
| ZIP Code Type | Standard |
| Population (2022) | 13 |
| Area Code(s) | 605 |
| Current Time | MDT |
| Population | 13 |
| Population Growth Rate | 0.00% |
| Population Density | 0 People per Square Mile |
| Total Households | 38 |
| Current Unemployment Rate (April 2024) | 3.5% |
| Majority Race/Ethnicty | White - 100.00% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 14 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 3 | 4.48% |
| Bachelor Degree | 19 | 28.36% |
| High School Diploma | 11 | 16.42% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 3 | 4.48% |
| 1 or More Years of College | 7 | 10.45% |
| Associates Degree | 6 | 8.96% |
| Masters Degree | 4 | 5.97% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 14 | 20.9% |
| Coordinates | 45.85897446,-103.03421021 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57650 | |
| Region | Rapid City Area |
| Time Zone | Mountain Daylight Time |
| IANA Timezone | America/Denver |
| Area | 107 Square Miles |
| South Dakota State Senate Districts in 57650 | |
| South Dakota State House of Representatives Districts in 57650 |
| School Districts in 57650 |
| Plant Hardiness Zone | Zone 4a: -30F to -25F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | September 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | BSk - Cold Semi-Arid Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 43a - Missouri Plateau | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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