Flat Rock Flag

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 317 . Flat Rock is currently declining at a rate of -0.63% annually and its population has decreased by -2.16% 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. For every 100 females there are 97.8 males.

317
Total Population
370
Density (mi²)
-2 -0.63%
Growth

Flat Rock Population

Flat Rock Population

Data after 2023 is projected based on recent change

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

White (97.79%)

Two or more races (2.21%)

Race
Population
Percentage (of total)
White35497.79%
Two or more races82.21%

Flat Rock Marital Status

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

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

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)