ZIP Code 57538 - Herrick South Dakota
Overview
ZIP Code 57538 is located in Herrick South Dakota. Portions of 57538 are also in West Gregory and East Gregory and Herrick (town). 57538 is entirely within Gregory County. Regionally, 57538 is located in the Sioux Falls Area.
ZIP Code 57538 Quick Stats
| ZIP Code Name | Herrick |
| Primary County | Gregory County |
| ZIP Code Type | Standard |
| Population (2022) | 258 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57538 Map
57538 Demographics
57538 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 57538 is White. The current unemployment level in 57538 is 2.2%.
| Population | 258 |
| Population Growth Rate | -14.63% |
| Population Density | 5 People per Square Mile |
| Total Households | 102 |
| Median Household Income (2021) | $40,000 |
| Average Adjusted Gross Income (2021) | $112,330 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 4.2% |
| Majority Race/Ethnicity | White - 91.32% |
57538 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 221 | 91.32% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 21 | 8.68% |
| Hawaiian/Pac. Islander | 0 | 0% |
57538 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 12 | 9.92% |
| Bachelor Degree | 14 | 11.57% |
| High School Diploma | 74 | 61.16% |
| No High School Diploma | 3 | 2.48% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 11 | 9.09% |
| Associates Degree | 7 | 5.79% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
57538 Geography
| Coordinates | 43.09303284, -99.2141037 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57538 | |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 56 Square Miles |
57538 Schools
| School Districts in 57538 | |
| Elementary Schools in 57538 | |
| Middle Schools in 57538 | |
| High Schools in 57538 |
57538 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 | 42g - Ponca Plains | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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