Selby, SD Profile: Facts, Map & Data


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Selby, South Dakota - Basic Facts

The City of Selby had a population of 640 as of July 1, 2017.

The primary coordinate point for Selby is located at latitude 45.5057 and longitude -100.0329 in Walworth County. The formal boundaries for the City of Selby (see map below) encompass a land area of 0.71 sq. miles and a water area of 0 sq. miles. Walworth County is in the Central time zone (GMT -6). The elevation is 1,903 feet.

The City of Selby (GNIS ID: 1267562) 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 Selby 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 Selby, SD Boundary Map

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


Total Population 640
Daytime Population: Workers 311
Daytime Population: Residents 349
Total Daytime Population (TDP) 660
Ratio TDP/Total Population1 1.03
Population in Households 600
Population in Familes 470
Population in Group Qrtrs 40
Population Density2 899
Diversity Index3 12


Median Household Income $46,201
Average Household Income $57,736
Per Capita Income $27,311


Total Housing Units 334 (100%)
Owner Occupied HU 228 (68.3%)
Renter Occupied HU 75 (22.5%)
Vacant Housing Units 31 ( 9.3%)
Median Home Value $56,250
Average Home Value $76,535


Total Households 303
Average Household Size 1.98
Family Households 183
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 -0.04% -0.16%
Households 0.14% -0.13%
Families 0.62% -0.11%
Median Household Income   1.85%
Per Capita Income   2.93%

Selby, SD - Peer Comparisons by Rank and Percentile

The table below compares Selby 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 # 119 70th
Population Density # 107 73rd
Diversity Index # 232 41st
Median Household Income # 254 35th
Per Capita Income # 221 44th

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

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