Union Flag

Union

County:
McHenry County
County Seat:
No
Area (mi²):
0.836
State:
Illinois

Union is a village located in McHenry County, Illinois. Union has a 2026 population of 760. Union is currently growing at a rate of 4.83% annually and its population has increased by 38.18% since the most recent census, which recorded a population of 550 in 2020.

The median household income in Union is $89,844 with a poverty rate of 7.53%. The median age in Union is 39 years: 38.1 years for males, and 42 years for females. For every 100 females there are 127.7 males.

760
Total Population
909
Density (mi²)
35 4.83%
Growth

Union Population

Union Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026760354.83%
2025725355.07%
20246909515.97%
2023595519.38%
2022544-7-1.27%
202155110.18%
2020550-1-0.18%
2019550-5-0.9%
2018555-4-0.72%
201755900%
2016559-3-0.53%
2015562-4-0.71%
2014566-4-0.7%
2013570-4-0.7%
2012574-4-0.69%
2011578-2-0.34%
201058000%

Median Age

Overall: 39 years
Female: 42 years
Male: 38.1 years

Union Adults

There are 488 adults, (73 of whom are seniors) in Union.

Sex Ratio

Female: 274 (43.9%)
Male: 350 (56.1%)

Demographics

The racial composition of Union includes 91.03% White, 4.17% other race, and smaller percentages for Asian, Two or more races, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White56891.03%
Other race264.17%
Asian132.08%
Two or more races121.92%
Black or African American50.8%
Race
Population ↓
Percentage (of total)
Other race264.17%
Two or more races50.8%
White30.48%
Race
Population ↓
Percentage (of total)
White56590.54%
Asian132.08%
Two or more races71.12%
Black or African American50.8%

Union Marital Status

Economics and Income Statistics

Union 's average per capita income is $60,341. Household income levels show a median of $89,844. The poverty rate stands at 7.53%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$151,250-
Families$102,000$131,972
Households$89,844$108,886
Non Families-$61,627

$60,341

Average Income

$89,844

Median Household Income

7.53%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)