Twin Brooks, SD Profile: Facts, Map & Data


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Twin Brooks, South Dakota - Basic Facts

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The Town of Twin Brooks had a population of 68 as of July 1, 2016. Twin Brooks ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in South Dakota. See peer rankings below.

The primary coordinate point for Twin Brooks is located at latitude 45.209 and longitude -96.7855 in Grant County. The formal boundaries for the Town of Twin Brooks (see map below) encompass a land area of 0.41 sq. miles and a water area of 0 sq. miles. Grant County is in the Central time zone (GMT -6). The elevation is 1,257 feet.

The Town of Twin Brooks (GNIS ID: 1267607) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Twin Brooks population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

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Town of Twin Brooks, SD Boundary Map

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Twin Brooks, SD Data & Demographics (As of July 1, 2016)


Total Population 68
Population in Households 68
Population in Familes 59
Population in Group Qrtrs 0
Population Density1 168
Diversity Index2 14


Total Households 27
Average Household Size 2.52
Family Households 20
Average Family Size 3


Total Housing Units 31 (100%)
Owner Occupied HU 23 (74.2%)
Renter Occupied HU 4 (12.9%)
Vacant Housing Units 4 (12.9%)
Median Home Value $89,286
Average Home Value $129,348


Median Household Income $55,556
Average Household Income $77,030
Per Capita Income $30,119
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.23% 0.0%
Households 0.0% 0.0%
Families 0.82% 0.0%
Median Household Income   1.58%
Per Capita Income   1.73%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Twin Brooks, SD - Peer Comparisons by Rank and Percentile

The table below compares Twin Brooks to the other 391 incorporated cities, towns and CDPs in South Dakota by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 315 19th
Population Density1 # 299 24th
Diversity Index2 # 191 51st
Median Household Income # 87 78th
Per Capita Income # 80 80th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.

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