ZIP Code 57521 - Belvidere South Dakota
Overview
ZIP Code 57521 is located in Belvidere South Dakota. Portions of 57521 are also in Northeast Jackson and Belvidere (town). 57521 is entirely within Jackson County. Regionally, 57521 is located in the Rapid City Area.
ZIP Code 57521 Quick Stats
| ZIP Code Name | Belvidere |
| Primary County | Jackson County |
| ZIP Code Type | Standard |
| Population (2022) | 201 |
| Area Code(s) | 605 |
| Current Time | MDT |
ZIP Code 57521 Map
57521 Demographics
The majority race/ethnicity residing in 57521 is White. The current unemployment level in 57521 is 2.2%.
| Population | 201 |
| Population Growth Rate | 95.16% |
| Population Density | 1 People per Square Mile |
| Total Households | 98 |
| Percentage High Income Households | 11.2% |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 72.73% |
57521 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 176 | 72.73% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 66 | 27.27% |
| Hawaiian/Pac. Islander | 0 | 0% |
57521 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 12 | 7.89% |
| Bachelor Degree | 12 | 7.89% |
| High School Diploma | 59 | 38.82% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 33 | 21.71% |
| Associates Degree | 36 | 23.68% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
57521 Geography
| Coordinates | 43.90148163, -101.24856567 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57521 | |
| Region | Rapid City Area |
| Time Zone | Mountain Daylight Time |
| IANA Timezone | America/Denver |
| Area | 226 Square Miles |
57521 Schools
| School Districts in 57521 |
57521 Weather and Climate Data
| Plant Hardiness Zone | Zone 4b: -25F to -20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | September 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | BSk - Cold Semi-Arid Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 43f - Subhumid Pierre Shale Plains | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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