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Union, McHenry County, Illinois

Village in McHenry County, Illinois · ZIP 60180

  • McHenry County
  • Within Coral Township
  • Census data · ACS 2019-2023
Join UnionAsk UnionBusinessesPeople
  • 690 (2024 estimate)Population
  • 299Households
  • $100,104Median household income
  • $224,600Median home value
  • 1ZIP codes

About Union

This page shows only what has been published about Union: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−4.3%
5505605705802000: 57620002010: 58020102020: 5512020576551
Population of Union at each census
CensusPopulation
2000576
2010580
2020551

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.

Household income in Union
Under $50k25.7%
$50k to $100k24.1%
$100k to $150k27.8%
$150k to $200k13.7%
$200k and over8.7%

Median household income $100,104 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 17, retrieved November 14, 2026.

Housing tenure in Union
Owner occupied
268 units
Renter occupied
31 units
Vacancy rate
4.5%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

Union compared with its county and state
Union compared with its county and state, American Community Survey 2019-2023
MeasureUnionMcHenry CountyIllinois
Population753311,36612,692,653
Median household income$100,104$102,836$81,702
Median age38.140.438.9
Median home value$224,600$286,900$250,500
Bachelor’s degree or higher15.7%35.2%37.2%
Foreign-born residents6.2%9.3%14.4%
Owner-occupied homes89.6%82.6%66.8%
Mean commute to work30.8 minutes30.6 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.

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Nearby towns

Other towns in McHenry County

All towns in McHenry County

Other places named Union in Illinois