Union, IL Profile: Facts, Map & Data


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Union, Illinois - Basic Facts

The Village of Union had a population of 623 as of July 1, 2016.

The primary coordinate point for Union is located at latitude 42.2314 and longitude -88.5447 in McHenry County. The formal boundaries for the Village of Union (see map below) encompass a land area of 0.83 sq. miles and a water area of 0 sq. miles. McHenry County is in the Central time zone (GMT -6). The elevation is 840 feet.

The Village of Union (GNIS ID: 2400020) 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 Union is located within Township of Coral, a minor civil division (MCD) of McHenry County.

Beneath the boundary map are tables with Union 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 Union, IL Boundary Map

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Boundary Maps: Township of Coral | McHenry County | Illinois Counties

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


Total Population 623
Population in Households 623
Population in Familes 551
Population in Group Qrtrs 0
Population Density1 752
Diversity Index2 14


Total Households 242
Average Household Size 2.57
Family Households 189
Average Family Size 3


Total Housing Units 248 (100%)
Owner Occupied HU 201 (81.0%)
Renter Occupied HU 41 (16.5%)
Vacant Housing Units 6 ( 2.4%)
Median Home Value $181,746
Average Home Value $220,500


Median Household Income $58,084
Average Household Income $67,524
Per Capita Income $25,562
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.15% 0.6%
Households 1.32% 0.73%
Families 2.8% 0.73%
Median Household Income   -0.73%
Per Capita Income   0.61%
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.

Union, IL - Peer Comparisons by Rank and Percentile

The table below compares Union 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 # 856 38th
Population Density1 # 917 33rd
Diversity Index2 # 627 54th
Median Household Income # 455 67th
Per Capita Income # 690 50th

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

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