Union Grove Flag

Union Grove

County Seat:
No
Area (mi²):
35.136
State:
Illinois

Union Grove is located in Whiteside County, Illinois. Union Grove has a 2025 population of 1,170. Union Grove is currently declining at a rate of -0.09% annually and its population has decreased by -1.76% since the most recent census, which recorded a population of 1,191 in 2020.

The average household income in Union Grove is $113,303 with a poverty rate of 3.46%.The median age in Union Grove is 44.1 years: 42.9 years for males, and 44.1 years for females.

1.2K
Total Population
33
Density (mi²)
-1 -0.09%
Growth

Union Grove Population

Union Grove Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Union Grove includes 85.83% White, and smaller percentages for Black or African American and multiracial populations.

Population by Race

White (85.8%)

Two or more races (12.8%)

Black or African American (1.4%)

Race
Population
Percentage (of total)
White1,15185.83%
Two or more races17112.75%
Black or African American191.42%

Union Grove Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Union Grove's average per capita income is $53,261. Household income levels show a median of $93,617. The poverty rate stands at 3.46%.

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$128,750-
Families$105,583$134,470
Households$93,617$113,303
Non Families$59,539$64,371

$53,261

Average Income

$93,617

Median Household Income

3.46%

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)