US ZIP Code
57269

Twin Brooks, SD

Grant County  ·  South Dakota

● Active
👥 257 Population
💰 $96,111 Median HH Income
▲ 26% above avg ↑ 44% since 2019
🎂 32.9 Median Age ↓ 42% since 2019
🏠 $411,800 Median Home Value
▲ 48% above avg ↑ 183% since 2019
🎓 66.0% College Grads
▲ 70% above avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code57269
CityTwin Brooks
StateSouth Dakota (SD)
CountyGrant County
Area Code605
Elevation1,274 ft
Latitude45.224257
Longitude-96.800243
TimezoneChicago (DST)
FIPS46051
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 54.5% (140) Female 45.5% (117) ♀

Race & Ethnicity

White: 99.2%Other: 0.8%Race
White99.2%
Other0.8%

Age Breakdown

Under 5
2%
5–17
14%
18–24
2%
25–44
37%
45–64
31%
65+
7%

Key Indicators

Median Age32.9 yrs ↓ 42% since 2019
Avg Household Size2.25
Below Poverty6.2% ▼ 38% below avg
College Grads66.0% ▲ 70% above avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma2 (1%)
HS Graduate44 (21.4%)
Some College14 (6.8%)
Associates10 (4.9%)
Bachelors14 (6.8%)
Graduate Degree122 (59.2%)

Education

No HS: 1%HS Grad: 21.4%Some College: 6.8%Associates: 4.9%Bachelors: 6.8%Graduate: 59.2%Edu
No HS1.0%
HS Grad21.4%
Some College6.8%
Associates4.9%
Bachelors6.8%
Graduate59.2%
Housing & Income

Housing Tenure

Owner: 96.5%Renter: 3.5%Tenure
Owner96.5%
Renter3.5%

Home Value Distribution

Under $50k
4%
$50k–100k
9%
$100k–150k
3%
$150k–200k
1%
$200k–300k
13%
$300k–500k
62%
Over $500k
9%

Financials

Median HH Income$96,111 ▲ 26% above avg ↑ 44% since 2019
Median Home Value$411,800 ▲ 48% above avg ↑ 183% since 2019
Home/Income Ratio4.3x (nat avg ~3.5x)
Total Units118
Vacant Units4
Avg HH Size2.25

Income Distribution

Under $25k
5%
$50k–75k
15%
$75k–100k
51%
$100k–150k
12%
$150k–200k
1%
Over $200k
15%
Employment & Commute

How People Get to Work

Drove Alone
97%
Work From Home
3%

Commute Time

Under 15 min
23%
15–30 min
28%
30–45 min
24%
Over 45 min
25%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
1%
1960s–1970s
24%
1980s–1990s
15%
2000+
58%

Summary

Total Units118
Vacant4
Owner Occupied96.5%
Renter Occupied3.5%
Avg HH Size2.25
Frequently Asked Questions
ZIP code 57269 is in Twin Brooks, SD, in Grant County.
ZIP code 57269 is located in South Dakota (SD).
ZIP code 57269 is in Grant County, SD.
ZIP 57269 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57269 is 257 people (ACS 2023).
The median household income in ZIP code 57269 is $96,111 (ACS 2023).
The median home value in ZIP 57269 is $411,800 (ACS 2023).
About ZIP Code 57269

ZIP code 57269 is located in Twin Brooks, South Dakota, within Grant County. With a population of 257, this is a sparsely populated ZIP code with a relatively young community — the median age is 32.9 years. Economically, 57269 is a middle-income ZIP code: the median household income of $96,111 is above the national average.

Real estate in ZIP code 57269 represents a premium housing market. The median home value of $411,800 is above the national average. Homeownership is strong here — 96.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 183% since 2019.

The population of 57269 is primarily White (99.22%). Residents are highly educated — 66.0% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 6.2%. Household income has grown by 44% since 2019.

As in most parts of the country, driving alone is the dominant commute mode at 90%.

Overall, ZIP code 57269 in Twin Brooks, SD is characterized as middle-income, highly educated, a relatively young community, and predominantly owner-occupied. With 257 residents, a median household income of $96,111, and a median home value of $411,800, it offers a clear picture of life in this part of South Dakota.