Hillsboro Flag

Hillsboro

County Seat:
Yes
Area (mi²):
36.121
State:
Illinois

Hillsboro is located in Montgomery County, Illinois. Hillsboro has a 2025 population of 6,823 . It is also the county seat of Montgomery County . Hillsboro is currently declining at a rate of -0.39% annually and its population has decreased by -1.7% since the most recent census, which recorded a population of 6,941 in 2020.

The median household income in Hillsboro is $51,289 with a poverty rate of 14.46%. The median age in Hillsboro is 42.6 years: 39.6 years for males, and 52.4 years for females. For every 100 females there are 182.8 males.

6.8K
Total Population
189
Density (mi²)
-27 -0.39%
Growth

Hillsboro Population

Hillsboro Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Hillsboro includes 86.28% White, 9.6% Black or African American, and smaller percentages for Two or more races, other race, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White (86.28%)

Black or African American (9.6%)

Two or more races (2.66%)

Other race (1.37%)

Native Hawaiian or Pacific Islander (0.09%)

Race
Population
Percentage (of total)
White5,97686.28%
Black or African American6659.6%
Two or more races1842.66%
Other race951.37%
Native Hawaiian or Pacific Islander60.09%

Hillsboro Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hillsboro's average per capita income is $39,403. Household income levels show a median of $51,289. The poverty rate stands at 14.46%.

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$111,131-
Families$92,243$108,156
Households$51,289$74,822
Non Families$27,198$34,520

$39,403

Average Income

$51,289

Median Household Income

14.46%

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)