Flat Rock

County:: Crawford County
County Seat:: No
Area (mi²):: 0.856
State:: Illinois

Flat Rock is a village located in Crawford County, Illinois. Flat Rock has a 2025 population of 310. Flat Rock is currently declining at a rate of -0.96% annually and its population has decreased by -4.32% since the most recent census, which recorded a population of 324 in 2020.

The average household income in Flat Rock is $61,688 with a poverty rate of 14.44%.The median age in Flat Rock is 37.7 years: 40.3 years for males, and 35.2 years for females.

Demographics

The racial composition of Flat Rock includes 97.79% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	354	97.79%
Two or more races	8	2.21%

Flat Rock Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Flat Rock's average per capita income is $46,250. Household income levels show a median of $49,881. The poverty rate stands at 14.44%.

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	$69,250	-
Families	$65,417	$71,774
Households	$49,881	$61,688
Non Families	$47,917	$42,027

$46,250

Average Income

$49,881

Median Household Income

14.44%

Poverty Rate