Union, Illinois

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Location of Union in McHenry County, Illinois.
Location of Union in McHenry County, Illinois.
Location of Illinois in the United States
Location of Illinois in the United States
Coordinates: 42°14′7″N 88°32′33″W / 42.23528°N 88.54250°W / 42.23528; -88.54250Coordinates: 42°14′7″N 88°32′33″W / 42.23528°N 88.54250°W / 42.23528; -88.54250
CountryUnited States
 • Total0.83 sq mi (2.15 km2)
 • Land0.83 sq mi (2.15 km2)
 • Water0.00 sq mi (0.00 km2)
Population (2010)
 • Total580
 • Estimate (2016)[2]552
 • Density666.67/sq mi (257.31/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP Code(s)60180
Area code(s)815
FIPS code17-76706
Wikimedia CommonsUnion, Illinois

Union is a village in McHenry County, Illinois, United States. The population was 580 at the 2010 census, up from 576 in 2000.


A post office called Union has been in operation since 1852.[3] The village was named for the federal union of the United States.[4]


Union is located at 42°14′7″N 88°32′33″W / 42.23528°N 88.54250°W / 42.23528; -88.54250 (42.235237, -88.542379).[5]

According to the 2010 census, Union has a total area of 0.83 square miles (2.15 km2), all land.[6]


Historical population
Census Pop.
Est. 2016552[2]−4.8%
U.S. Decennial Census[7]

As of the census[8] of 2000, there were 576 people, 204 households, and 158 families residing in the village. The population density was 950.4 people per square mile (364.6/km²). There were 208 housing units at an average density of 343.2 per square mile (131.7/km²). The racial makeup of the village was 98.09% White, 0.35% Native American, 0.87% from other races, and 0.69% from two or more races. Hispanic or Latino of any race were 3.99% of the population.

There were 204 households out of which 37.7% had children under the age of 18 living with them, 63.7% were married couples living together, 9.3% had a female householder with no husband present, and 22.5% were non-families. 15.7% of all households were made up of individuals and 6.4% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 3.15.

In the village, the population was spread out with 28.0% under the age of 18, 7.5% from 18 to 24, 34.2% from 25 to 44, 19.3% from 45 to 64, and 11.1% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 92.6 males. For every 100 females age 18 and over, there were 97.6 males.

The median income for a household in the village was $56,528, and the median income for a family was $57,500. Males had a median income of $38,393 versus $25,536 for females. The per capita income for the village was $21,218. About 5.8% of families and 5.2% of the population were below the poverty line, including 2.9% of those under age 18 and 16.7% of those age 65 or over.

Points of interest[edit]

Union was the site of the world's first fully automatic substation, on the current site of the water tower just east of Main Street.[9] Union is also the home to the Illinois Railway Museum and the McHenry County Historical Society.[10] It is also the home of Donley's Wild West Town amusement park and the site of the oldest and largest Antique Phonograph Show in the world.[11]

Notable person[edit]


The Marengo-Union Times is the newspaper of record in Union; it has a circulation of 6300 and is mailed to every home and business in the greater Marengo and Union area.


  1. ^ "2016 U.S. Gazetteer Files". United States Census Bureau. Retrieved Jun 30, 2017.
  2. ^ a b "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  3. ^ "McHenry County". Jim Forte Postal History. Retrieved 30 March 2015.
  4. ^ Chicago and North Western Railway Company (1908). A History of the Origin of the Place Names Connected with the Chicago & North Western and Chicago, St. Paul, Minneapolis & Omaha Railways. p. 132.
  5. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
  6. ^ "G001 - Geographic Identifiers - 2010 Census Summary File 1". United States Census Bureau. Retrieved 2015-12-25.
  7. ^ "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
  8. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
  9. ^ "Rotary Converter". Irm.org. Retrieved 2015-09-18.
  10. ^ "McHenry County Historical Society and Museum |". Mchsonline.org. 1976-07-04. Archived from the original on 2015-04-03. Retrieved 2015-09-18.
  11. ^ "Home". Wildwesttown.com. Retrieved 2015-09-18.

External links[edit]