Thornton, IA Profile: Facts & Data


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Thornton, Iowa - Basic Facts

The City of Thornton had a population of 408 as of July 1, 2018. Thornton ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Thornton is located at latitude 42.9442 and longitude -93.3871 in Cerro Gordo County. The formal boundaries for the City of Thornton (see map below) encompass a land area of 1.25 sq. miles and a water area of 0 sq. miles. Cerro Gordo County is in the Central time zone (GMT -6). The elevation is 1,188 feet.

The City of Thornton (GNIS ID: 2397021) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Thornton is located within Township of Grimes, a minor civil division (MCD) of Cerro Gordo County.

Beneath the boundary map are tables with Thornton population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Thornton, IA Data & Demographics (As of July 1, 2018)


Total Population 408
Population in Households 408
Population in Familes 319
Population in Group Qrtrs 0
Population Density1 327
Diversity Index2 7


Median Household Income $50,000
Average Household Income $60,736
Per Capita Income $26,680


Total Housing Units 204 (100%)
Owner Occupied HU 145 (71.1%)
Renter Occupied HU 37 (18.1%)
Vacant Housing Units 21 (10.3%)
Median Home Value $86,475
Average Home Value $105,000


Total Households 183
Average Household Size 2.23
Family Households 117
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 -0.41% -0.2%
Households -0.33% -0.22%
Families -0.8% -0.17%
Median Household Income   1.82%
Per Capita Income   2.99%

Thornton, IA - Peer Comparisons by Rank and Percentile

The table below compares Thornton to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 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 # 517 49th
Population Density # 761 25th
Diversity Index # 723 28th
Median Household Income # 745 27th
Per Capita Income # 699 31st

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

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