Spring Grove township Flag

Spring Grove township

County:
McHenry County
County Seat:
No
Area (mi²):
36.844
State:
Illinois

Spring Grove township is located in McHenry County, Illinois. Spring Grove township has a 2026 population of 919. Spring Grove township is currently declining at a rate of -0.43% annually and its population has decreased by -4.96% since the most recent census, which recorded a population of 967 in 2020.

The median household income in Spring Grove township is $79,250 with a poverty rate of 11.23%. The median age in Spring Grove township is 38.8 years: 40.4 years for males, and 35.9 years for females. For every 100 females there are 81.8 males.

919
Total Population
25
Density (mi²)
-4 -0.43%
Growth

Spring Grove township Population

Spring Grove township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026919-4-0.43%
2025923-4-0.43%
2024927-4-0.43%
2023931-9-0.96%
2022940-12-1.26%
2021952-15-1.55%
202096700%
2019971-10-1.02%
2018981-7-0.71%
2017988-8-0.8%
2016996-5-0.5%
20151,001-16-1.57%
20141,01720.2%
20131,015-1-0.1%
20121,01600%
20111,01630.3%
20101,01410.1%

Median Age

Overall: 38.8 years
Female: 35.9 years
Male: 40.4 years

Spring Grove township Adults

There are 885 adults, (212 of whom are seniors) in Spring Grove township.

Sex Ratio

Female: 660 (55%)
Male: 540 (45%)

Demographics

The racial composition of Spring Grove township includes 89.17% White, 4.25% Black or African American, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,07089.17%
Two or more races715.92%
Black or African American514.25%
Asian80.67%
Race
Population ↓
Percentage (of total)
Two or more races242%
Race
Population ↓
Percentage (of total)
White1,07089.17%
Black or African American514.25%
Two or more races473.92%
Asian80.67%

Spring Grove township Marital Status

Economics and Income Statistics

Spring Grove township 's average per capita income is $37,853. Household income levels show a median of $79,250. The poverty rate stands at 11.23%.

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$83,636-
Families$83,409$96,652
Households$79,250$85,668
Non Families$46,652$64,949

$37,853

Average Income

$79,250

Median Household Income

11.23%

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)