ZIP Code 57359 - Letcher South Dakota
Overview
ZIP Code 57359 is located in Letcher South Dakota. Portions of 57359 are also in Storla and Upland Colony and Butler Township (Sanborn County) and Letcher Township and Elliott Township and Belford Township and Badger Township (Davison County) and Perry Township (Davison County) and Union Township (Sanborn County) and Letcher (town). 57359 is primarily within Sanborn County, with some portions in Aurora County and Davison County. Regionally, 57359 is located in the Sioux Falls Area.
ZIP Code 57359 Quick Stats
| ZIP Code Name | Letcher |
| Primary County | Sanborn County |
| ZIP Code Type | Standard |
| Population (2022) | 612 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57359 Map
57359 Demographics
57359 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 57359 is White. The current unemployment level in 57359 is 2.2%.
| Population | 612 |
| Population Growth Rate | -24.3% |
| Population Density | 4 People per Square Mile |
| Total Households | 300 |
| Percentage High Income Households | 2.7% |
| Median Household Income (2021) | $61,346 |
| Average Adjusted Gross Income (2021) | $186,080 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 94.89% |
57359 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 557 | 94.89% |
| Black | 0 | 0% |
| Hispanic | 28 | 4.77% |
| Asian | 2 | 0.34% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57359 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 17 | 3.54% |
| Bachelor Degree | 58 | 12.08% |
| High School Diploma | 230 | 47.92% |
| No High School Diploma | 2 | 0.42% |
| GED or Alternate | 32 | 6.67% |
| 1 or More Years of College | 37 | 7.71% |
| Associates Degree | 63 | 13.13% |
| Masters Degree | 38 | 7.92% |
| Professional Degree | 3 | 0.63% |
| Doctorate Degree | 0 | 0% |
57359 Geography
| Coordinates | 43.89344788, -98.16911316 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57359 | |
| Region | Sioux Falls Area |
| Metropolitan/Micropolitan Stat Area | Mitchell, SD |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 150 Square Miles |
57359 Schools
| School Districts in 57359 | |
| Elementary Schools in 57359 | |
| Middle Schools in 57359 | |
| High Schools in 57359 |
57359 Weather and Climate Data
| Plant Hardiness Zone | Zone 4b: -25F to -20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 46n - James River Lowland | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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