ZIP Code 57269 - Twin Brooks South Dakota
Overview
ZIP Code 57269 is located in Twin Brooks South Dakota. Portions of 57269 are also in Kilborn Township and Twin Brooks Township and Grant Center Township and Mazeppa Township and Madison Township (Grant County) and Twin Brooks (town). 57269 is entirely within Grant County. Regionally, 57269 is located in the Sioux Falls Area.
ZIP Code 57269 Quick Stats
| ZIP Code Name | Twin Brooks |
| Primary County | Grant County |
| ZIP Code Type | Standard |
| Population (2022) | 179 |
| Area Code(s) | 605 |
| Current Time | CDT |
ZIP Code 57269 Map
57269 Demographics
57269 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 57269 is White. The current unemployment level in 57269 is 2.2%.
| Population | 179 |
| Population Growth Rate | -50.76% |
| Population Density | 2 People per Square Mile |
| Total Households | 169 |
| Median Household Income (2021) | $71,705 |
| Average Adjusted Gross Income (2021) | $210,260 |
| Current Unemployment Rate (May 2026) | 2.2% |
| Sales Tax Rate (2025) | 4.2% |
| Majority Race/Ethnicity | White - 100% |
57269 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 161 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
57269 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 9 | 3.3% |
| Bachelor Degree | 42 | 15.38% |
| High School Diploma | 103 | 37.73% |
| No High School Diploma | 2 | 0.73% |
| GED or Alternate | 15 | 5.49% |
| 1 or More Years of College | 19 | 6.96% |
| Associates Degree | 78 | 28.57% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 5 | 1.83% |
57269 Geography
| Coordinates | 45.22134399, -96.802948 |
| Adjacent ZIP Codes | |
| Cities/Towns in 57269 | |
| Region | Sioux Falls Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 94 Square Miles |
57269 Schools
| School Districts in 57269 | |
| Elementary Schools in 57269 | |
| Middle Schools in 57269 | |
| High Schools in 57269 |
57269 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 | 46o - Minnesota River Prairie | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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