ZIP Code 57446 - Hecla South Dakota
Overview
ZIP Code 57446 is located in Hecla South Dakota. Portions of 57446 are also in Liberty Township (Brown County) and Portage Township and North Detroit Township and Hecla Township and Greenfield Township and Lansing Township. 57446 is entirely within Brown County. Regionally, 57446 is located in the Sioux Falls Area.
ZIP Code 57446 Quick Stats
| ZIP Code Name | Hecla |
| Primary County | Brown County |
| ZIP Code Type | Standard |
| Population (2022) | 628 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57446 Map
57446 Demographics
57446 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 57446 is White. The current unemployment level in 57446 is 2.2%.
| Population | 628 |
| Population Growth Rate | 101.12% |
| Population Density | 4 People per Square Mile |
| Total Households | 230 |
| Median Household Income (2021) | $60,625 |
| Average Adjusted Gross Income (2021) | $163,600 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 6.2% |
| Majority Race/Ethnicity | White - 96.51% |
57446 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 692 | 96.51% |
| Black | 0 | 0% |
| Hispanic | 5 | 0.7% |
| Asian | 20 | 2.79% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57446 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 14 | 4.62% |
| Bachelor Degree | 28 | 9.24% |
| High School Diploma | 145 | 47.85% |
| No High School Diploma | 1 | 0.33% |
| GED or Alternate | 5 | 1.65% |
| 1 or More Years of College | 83 | 27.39% |
| Associates Degree | 13 | 4.29% |
| Masters Degree | 6 | 1.98% |
| Professional Degree | 8 | 2.64% |
| Doctorate Degree | 0 | 0% |
57446 Geography
| Coordinates | 45.86742401, -98.15824127 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57446 | |
| Region | Sioux Falls Area |
| Metropolitan/Micropolitan Stat Area | Aberdeen, SD |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 167 Square Miles |
57446 Schools
| School Districts in 57446 |
57446 Weather and Climate Data
| Plant Hardiness Zone | Zone 4a: -30F to -25F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | September 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfb - Humid Continental Mild Summer, Wet All Year | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 46d - Glacial Lake Deltas | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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