Twin Brooks, SD · standard
ZIP Code 57269
Grant County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 413
- 2/sq mi Low-density area
- $98,333
- Median income Above-median income area
- $410,600
- Median home value Above-median home value
- 54.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Twin Brooks pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 20%
- household income, US ZIPs
- Top 20%
- home value, US ZIPs
- 2
- people per sq mi
- 96%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57269 against every reporting US ZIP.
ZIP code 57269 is a sparsely populated ZIP (a standard USPS delivery area) in Twin Brooks, Grant County, South Dakota, home to just 413 residents across 258.1 square miles, a density of 2 people per square mile, in the Chicago time zone.
ZIP 57269 lands in the middle-income range, with a median household income of $98,333 (28% above the average South Dakota ZIP), while per-capita income is $59,825. The poverty rate is 8.6%, with unemployment at 3.8%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $410,600 (114% above the average South Dakota ZIP), while 96.1% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 54.7% of adults hold a bachelor's degree or higher, the median age is 32.6, and the average commute is -. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Grant County, so 57269 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57269, Twin Brooks, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
413
Population
258.1
Area (sq mi)
2
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 57269?
32.6
Median Age
53.8%
Male
46.2%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$98,333
Median Household Income
+28% vs state ZIP avg
$59,825
Per Capita Income
8.6%
Poverty Rate
3.8%
Unemployment Rate
How ZIP 57269 ranks among South Dakota ZIPs
Twin Brooks, SD household income vs. every South Dakota ZIP code
Median household income among 337 reporting South Dakota ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$98,333 Top 13% higher than 87% of 337 South Dakota ZIPs
Each bar is a $20K-wide band; taller bars hold more South Dakota ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
80housing units
80
Total Housing Units
76
Occupied Units
4
Vacant Units
2.45
Avg Household Size
Occupancy Type
$410,600
Median Home Value
+114% vs state ZIP avg
1976
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 6 business establishments in ZIP 57269, employing approximately 16 people with a combined annual payroll of $713,000.
6
Businesses
16
Employees
$713K
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 50.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 57269 vs 57264 →
ZIP 57269 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 57227
Corona (57227)
434 residents
- 57269
Twin Brooks (57269)
413 residents
- 57264
Stockholm (57264)
219 residents
- 57251 127
Marvin (57251)
127 residents
What this shows Among its immediate neighbors, ZIP 57269 ranks #2 by population - useful context the national average alone can't give.
ZIP 57269 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 57269
Twin Brooks (57269)
$98,333 median income
- 57227
Corona (57227)
$96,500 median income
- 57264
Stockholm (57264)
$79,583 median income
- 57251
Marvin (57251)
$72,292 median income
What this shows By household income, ZIP 57269 ranks the highest of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 57269, both outside SD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Grant County
Related Areas
Frequently Asked Questions
What county is ZIP code 57269 in?
ZIP code 57269 (Twin Brooks) is located in Grant County, South Dakota. Grant County contains multiple ZIP codes, see the full list at /counties/grant-sd.
What is the population of ZIP code 57269?
ZIP code 57269 in Twin Brooks, SD has a population of 413 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57269?
The median household income in ZIP 57269 is $98,333, which is 29% above the national average of $76,288.
What is the average home value in ZIP 57269?
The median home value in ZIP 57269 is $410,600, which is 48% above the national average of $278,155.
What is the demographic makeup of ZIP 57269?
The largest racial group in ZIP 57269 is White at 96.8%.
How many businesses are in ZIP code 57269?
ZIP code 57269 has 6 business establishments employing approximately 16 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 57269?
In ZIP code 57269, 74.7% of residents aged 25+ have a high school diploma or higher, and 54.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57269?
In ZIP code 57269, approximately 96.1% of occupied housing units are owner-occupied and 3.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57269?
The poverty rate in ZIP code 57269 is 8.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 57269's numbers, next.
- See how ZIP 57269 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Twin Brooks, SD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.