Timber Lake, SD Profile: Facts, Map & Data


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Timber Lake, South Dakota - Basic Facts

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The City of Timber Lake had a population of 463 as of July 1, 2017. Timber Lake ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in South Dakota. See peer rankings below.

The primary coordinate point for Timber Lake is located at latitude 45.428 and longitude -101.0747 in Dewey County. The formal boundaries for the City of Timber Lake (see map below) encompass a land area of 0.41 sq. miles and a water area of 0 sq. miles. Dewey County is in the Mountain time zone (GMT -7). The elevation is 2,169 feet.

The City of Timber Lake (GNIS ID: 1267600) 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 Timber Lake population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of Timber Lake, SD Boundary Map

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Timber Lake, SD Data & Demographics (As of July 1, 2017)


Total Population 463
Daytime Population: Workers 232
Daytime Population: Residents 243
Total Daytime Population (TDP) 475
Ratio TDP/Total Population1 1.03
Population in Households 463
Population in Familes 391
Population in Group Qrtrs 0
Population Density2 1,139
Diversity Index3 57


Median Household Income $39,027
Average Household Income $65,439
Per Capita Income $23,989


Total Housing Units 214 (100%)
Owner Occupied HU 138 (64.5%)
Renter Occupied HU 48 (22.4%)
Vacant Housing Units 28 (13.1%)
Median Home Value $71,667
Average Home Value $117,210


Total Households 186
Average Household Size 2.49
Family Households 131
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.61% 0.51%
Households 0.53% 0.43%
Families 2.44% 0.3%
Median Household Income   6.77%
Per Capita Income   3.97%

Timber Lake, SD - Peer Comparisons by Rank and Percentile

The table below compares Timber Lake to the other 391 incorporated cities, towns and CDPs in South Dakota by rank and percentile using July 1, 2017 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 # 153 61st
Population Density # 74 81st
Diversity Index # 13 97th
Median Household Income # 326 17th
Per Capita Income # 294 25th

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

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