Thomson, IL Profile: Facts, Map & Data


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Thomson, Illinois - Basic Facts

The Village of Thomson had a population of 684 as of July 1, 2016. Thomson ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Thomson is located at latitude 41.9727 and longitude -90.1118 in Carroll County. The formal boundaries for the Village of Thomson (see map below) encompass a land area of 2.39 sq. miles and a water area of 0 sq. miles. Carroll County is in the Central time zone (GMT -6). The elevation is 600 feet.

The Village of Thomson (GNIS ID: 2399974) 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 Village of Thomson is located within Township of York, a minor civil division (MCD) of Carroll County.

Beneath the boundary map are tables with Thomson population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Village of Thomson, IL Boundary Map

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Boundary Maps: Township of York | Carroll County | Illinois Counties

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Thomson, IL Data & Demographics (As of July 1, 2016)


Total Population 684
Population in Households 676
Population in Familes 547
Population in Group Qrtrs 8
Population Density1 286
Diversity Index2 13


Total Households 252
Average Household Size 2.68
Family Households 170
Average Family Size 3


Total Housing Units 262 (100%)
Owner Occupied HU 186 (71.0%)
Renter Occupied HU 66 (25.2%)
Vacant Housing Units 10 ( 3.8%)
Median Home Value $111,585
Average Home Value $127,941


Median Household Income $42,537
Average Household Income $54,423
Per Capita Income $23,415
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 2.39% 0.15%
Households 1.06% 0.24%
Families 1.08% 0.23%
Median Household Income   1.06%
Per Capita Income   1.66%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Thomson, IL - Peer Comparisons by Rank and Percentile

The table below compares Thomson to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2016 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 # 824 40th
Population Density1 # 1211 12th
Diversity Index2 # 660 51st
Median Household Income # 1041 24th
Per Capita Income # 929 32nd

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

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