PlainZIP

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
$98,333
Median income
$410,600
Median home value
54.7%
Bachelor's or higher

The verdict

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 South Dakota average), while per-capita income is $59,825. Poverty here runs at 8.6%, with unemployment measured at 3.8%. On housing, the median home value is $410,600 (114% above the state average) with median rent at - per month, and 96.1% of occupied units 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 -. A geography-based comparison follows: 3 ZIP codes within about 10 miles of 57269, plus 6 more within Grant County, give a clearer read than the national average alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57269?

32.6

Median Age

53.8%

Male

46.2%

Female

0.0%

Foreign-Born

White 96.8%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 2.7%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.5%
Hispanic or Latino 0.0%

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

$59,825

Per Capita Income

8.6%

Poverty Rate

3.8%

Unemployment Rate

How ZIP 57269 ranks nationally

Twin Brooks, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$98,333 Top 20% higher than 80% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 74.7%
Bachelor's Degree or Higher 54.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

80

Total Housing Units

76

Occupied Units

4

Vacant Units

2.45

Avg Household Size

Occupancy Type

Owner 96.1%
Renter 3.9%

$410,600

Median Home Value

+114% vs state

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.

residents

What this shows Among its immediate neighbors, ZIP 57269 ranks #2 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 57269 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
57264 Stockholm, SD 219 7.6 mi
57251 Marvin, SD 127 7.1 mi
57227 Corona, SD 434 10.8 mi

More ZIP Codes in Grant County

57252 standard
Milbank, SD
Pop: 4,800
57216 standard
Big Stone City, SD
Pop: 1,044
57259 standard
Revillo, SD
Pop: 505
57265 standard
Strandburg, SD
Pop: 225
57264 standard
Stockholm, SD
Pop: 219
57246 standard
Labolt, SD
Pop: 161

Related Areas

Grant County Twin Brooks, SD South Dakota

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.

Read our methodology to see how this data is sourced, computed, and verified.