Isabel, SD Profile: Facts, Map & Data


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Isabel, South Dakota - Basic Facts

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The Town of Isabel had a population of 141 as of July 1, 2017. Isabel ranks in the lower quartile for Population Density and the upper 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 Isabel is located at latitude 45.3938 and longitude -101.4325 in Dewey County. The formal boundaries for the Town of Isabel (see map below) encompass a land area of 0.9 sq. miles and a water area of 0 sq. miles. Dewey County is in the Mountain time zone (GMT -7). The elevation is 2,398 feet.

The Town of Isabel (GNIS ID: 1267439) 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 Isabel 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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Town of Isabel, SD Boundary Map

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


Total Population 141
Daytime Population: Workers 121
Daytime Population: Residents 71
Total Daytime Population (TDP) 192
Ratio TDP/Total Population1 1.36
Population in Households 141
Population in Familes 119
Population in Group Qrtrs 0
Population Density2 156
Diversity Index3 57


Median Household Income $44,215
Average Household Income $64,810
Per Capita Income $24,003


Total Housing Units 71 (100%)
Owner Occupied HU 42 (59.2%)
Renter Occupied HU 15 (21.1%)
Vacant Housing Units 14 (19.7%)
Median Home Value $72,222
Average Home Value $114,881


Total Households 57
Average Household Size 2.47
Family Households 40
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 0.6% 0.56%
Households 0.49% 0.69%
Families 0.71% 0.5%
Median Household Income   4.37%
Per Capita Income   3.92%

Isabel, SD - Peer Comparisons by Rank and Percentile

The table below compares Isabel 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 # 255 35th
Population Density # 302 23rd
Diversity Index # 16 96th
Median Household Income # 269 31st
Per Capita Income # 293 25th

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

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