ZIP Code 57429 - Brentford South Dakota
Overview
ZIP Code 57429 is located in Brentford South Dakota. Portions of 57429 are also in La Prairie Township and Tetonka Township and Brentford (town). 57429 is entirely within Spink County. Regionally, 57429 is located in the Sioux Falls Area.
ZIP Code 57429 Quick Stats
| ZIP Code Name | Brentford |
| Primary County | Spink County |
| ZIP Code Type | PO Box |
| Population (2022) | 71 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57429 Map
57429 Demographics
57429 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in South Dakota. The majority race/ethnicity residing in 57429 is White. The current unemployment level in 57429 is 2.2%.
| Population | 71 |
| Population Growth Rate | -21.74% |
| Population Density | 4 People per Square Mile |
| Total Households | 57 |
| Median Household Income (2021) | $50,750 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 4.2% |
| Majority Race/Ethnicity | White - 100% |
57429 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 72 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57429 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 3 | 3.45% |
| Bachelor Degree | 19 | 21.84% |
| High School Diploma | 27 | 31.03% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 18 | 20.69% |
| Associates Degree | 19 | 21.84% |
| Masters Degree | 1 | 1.15% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
57429 Geography
| Coordinates | 45.169384, -98.28803253 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57429 | |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 19 Square Miles |
57429 Schools
| School Districts in 57429 |
57429 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 | 46c - Glacial Lake Basins | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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