Spencer, SD Profile: Facts, Map & Data


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Spencer, South Dakota - Basic Facts

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The City of Spencer had a population of 149 as of July 1, 2017. Spencer ranks in the lower quartile for 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 Spencer is located at latitude 43.7275 and longitude -97.5911 in McCook County. The formal boundaries for the City of Spencer (see map below) encompass a land area of 0.27 sq. miles and a water area of 0 sq. miles. McCook County is in the Central time zone (GMT -6). The elevation is 1,381 feet.

The City of Spencer (GNIS ID: 1267589) 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 Spencer 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 Spencer, SD Boundary Map

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


Total Population 149
Daytime Population: Workers 46
Daytime Population: Residents 59
Total Daytime Population (TDP) 105
Ratio TDP/Total Population1 0.70
Population in Households 141
Population in Familes 127
Population in Group Qrtrs 8
Population Density2 556
Diversity Index3 7


Median Household Income $55,290
Average Household Income $77,342
Per Capita Income $29,960


Total Housing Units 78 (100%)
Owner Occupied HU 51 (65.4%)
Renter Occupied HU 8 (10.3%)
Vacant Housing Units 19 (24.4%)
Median Home Value $157,143
Average Home Value $155,500


Total Households 59
Average Household Size 2.39
Family Households 47
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 -0.45% -0.27%
Households -0.23% -0.34%
Families 0.0% -0.43%
Median Household Income   4.0%
Per Capita Income   4.56%

Spencer, SD - Peer Comparisons by Rank and Percentile

The table below compares Spencer 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 # 247 37th
Population Density # 176 55th
Diversity Index # 329 17th
Median Household Income # 124 69th
Per Capita Income # 116 71st

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

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