Groton, SD Profile: Facts, Map & Data


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Groton, South Dakota - Basic Facts

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The City of Groton had a population of 1,473 as of July 1, 2017.

The primary coordinate point for Groton is located at latitude 45.4517 and longitude -98.1001 in Brown County. The formal boundaries for the City of Groton (see map below) encompass a land area of 1.75 sq. miles and a water area of 0 sq. miles. Brown County is in the Central time zone (GMT -6). The elevation is 1,302 feet.

The City of Groton (GNIS ID: 1267410) 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 Groton 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 Groton, SD Boundary Map

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


Total Population 1,473
Daytime Population: Workers 548
Daytime Population: Residents 610
Total Daytime Population (TDP) 1,158
Ratio TDP/Total Population1 0.79
Population in Households 1,429
Population in Familes 1,165
Population in Group Qrtrs 44
Population Density2 841
Diversity Index3 9


Median Household Income $68,102
Average Household Income $82,328
Per Capita Income $33,138


Total Housing Units 645 (100%)
Owner Occupied HU 421 (65.3%)
Renter Occupied HU 166 (25.7%)
Vacant Housing Units 58 ( 9.0%)
Median Home Value $131,746
Average Home Value $166,726


Total Households 587
Average Household Size 2.43
Family Households 373
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 0.14% 0.27%
Households 0.26% 0.37%
Families 0.0% 0.16%
Median Household Income   2.24%
Per Capita Income   2.98%

Groton, SD - Peer Comparisons by Rank and Percentile

The table below compares Groton 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 # 52 87th
Population Density # 119 70th
Diversity Index # 279 29th
Median Household Income # 25 94th
Per Capita Income # 47 88th

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

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