Brant Lake South CDP, South Dakota Demographics & Population 2026

Name: Brant Lake South CDP, South Dakota Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

As of 2026, Brant Lake South CDP, South Dakota has a total population of 210, the 231st largest city in South Dakota, with a median household income of $105,000, which is 45% higher than the state average. The poverty rate is 2.4%.

Key Takeaways

Household income is 45% above the state average — one of the wealthiest communities in South Dakota.
An exceptionally low poverty rate of 2.4% — among the lowest in South Dakota.
Only 9.8% of adults have a bachelor's degree, well below the national average of 35.0%.
Near full employment with an unemployment rate of just 0.0%.

Brant Lake South CDP Quick Facts

Population 210

Median Household Income $105,000

Median Home Value N/A

Poverty Rate 2.4%

Unemployment Rate 0.0%

Median Age 57.2 years

Homeownership Rate 100.0%

Affordability Ratio N/A

Bachelor's Degree or Higher 9.8%

High School Graduation Rate 87.6%

Diversity Index 32/100

Population 210 231st of 439

Median Income $105,000 top 10%

Poverty Rate 2.4% 81% lower national

Median Home Value N/A

How Brant Lake South CDP Compares

Median Household Income

Brant Lake South CDP

$105,000

$72,421

National

$78,538

Median Home Value

$236,800

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 10.0%

$25K-$50K 5.0%

$50K-$100K 31.3%

$100K+ 53.8%

Employment

0.0% Unemployment Rate State: 3.0% | National: 5.2%

72.9% Labor Force Participation

Housing Overview

Owner 100.0%

Renter 0.0%

People & Demographics

Age Distribution

Under 18

0.0%

18-34

28.1%

35-54

20.0%

55-74

50.5%

75+

1.4%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 33 | National average: 60

Education

Educational Attainment (Adults 25+)

Brant Lake South CDP Rankings in South Dakota

#231 Population of 439

#23 Median Income of 439

#310 Education of 439

N/A Home Value of 439

Explore South Dakota Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Brant Lake South CDP

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Eden town	206	N/A	N/A	38.4%	1.5%
Horse Creek CDP	205	N/A	N/A	0.0%	97.6%
Hecla city	204	N/A	$47,100	5.8%	9.3%
Swift Bird CDP	183	N/A	N/A	0.0%	100.0%
Glendale Colony CDP	177	N/A	N/A	11.4%	6.8%

Population Overview

Brant Lake South CDP is a small community located in South Dakota. The total population is 210. It ranks as the 231st most populous out of 439 cities and towns in South Dakota.

Age Demographics

The median age in Brant Lake South CDP is 57.2 years. This is 52% higher than the state median of 37.7 years. Only 0.0% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Brant Lake South CDP is $105,000. This is 45% higher than the state median of $72,421. Compared to the national median of $78,538, household income here is 34% higher. The poverty rate stands at 2.4%. This is 80% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.0%. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.

Race & Ethnicity

The largest racial or ethnic group in Brant Lake South CDP is White (non-Hispanic), making up 60.5% of the population.

Education

9.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 68% lower than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.6%.

Data Sources & Methodology

All demographic data for Brant Lake South CDP, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against South Dakota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 439 Census-designated places in South Dakota. For official data, visit data.census.gov.

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Frequently Asked Questions

What is the population of Brant Lake South CDP, South Dakota?

Brant Lake South CDP, South Dakota has a population of 210 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Brant Lake South CDP, SD?

The median household income in Brant Lake South CDP is $105,000, which is 34% higher the national median of $78,538.

What is the poverty rate in Brant Lake South CDP, SD?

The poverty rate in Brant Lake South CDP is 2.4%. This means approximately 5 residents live below the federal poverty line.

What is the racial makeup of Brant Lake South CDP, South Dakota?

Brant Lake South CDP's population is 60.5% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.

What is the median home value in Brant Lake South CDP, SD?

The median home value in Brant Lake South CDP is N/A.

How educated is Brant Lake South CDP, South Dakota?

9.8% of adults (25+) in Brant Lake South CDP hold a bachelor's degree or higher, and 2.6% hold a graduate or professional degree.