US Census Data

Marshall County, Illinois

8 cities & places have their primary county here.

Population
11,715
+0.3%’19–’23
Median household income
$69,818
+19.4%’19–’23
Median home value
$137,800
+31.4%’19–’23

Marshall County is a county in Illinois with a population of 11,715. 8 cities and places have their primary county here. Its median household income of $69,818 runs below the Illinois figure of $81,702.

Between 2019 and 2023, Marshall County's population held roughly steady from 11,679 to 11,715, while its median household income rose 19.4% from $58,465 to $69,818.

The median resident is 45.9 years old. The largest age group is 5 to 17, 15.6% of residents.

Demographics

ACS 2019–2023
Population
11,715
Median age
45.9 yrs
Median household income
$69,818
Median home value
$137,800
Median gross rent
$767
Housing units
5,824
Homeownership rate
79.7%
Bachelor's degree or higher
18.7%
Unemployment rate
4.7%

Trends

ACS 5-year · 2019–2023
Population
11,67911,715
Median household income
$58,465$69,818
Median home value
$104,900$137,800
Median gross rent
$623$767
YearPopulationMedian household incomeMedian home valueMedian gross rent
201911,679$58,465$104,900$623
202011,562$57,303$105,700$661
202111,781$60,231$111,300$679
202211,740$64,940$124,600$746
202311,715$69,818$137,800$767

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 56485.5%
5 to 171,83115.6%
18 to 247376.3%
25 to 341,27810.9%
35 to 441,28511.0%
45 to 541,38511.8%
55 to 641,78915.3%
65 to 741,57113.4%
75 and over1,19110.2%

Race & ethnicity

CountShare
White (non-Hispanic)10,82192.4%
Black or African American490.4%
American Indian & Alaska Native10.0%
Asian130.1%
Native Hawaiian & Pacific Islander60.1%
Some other race300.3%
Two or more races4163.6%
Hispanic or Latino (any race)3793.2%

Educational attainment (age 25+)

CountShare
No high school diploma7649.0%
High school graduate3,17937.4%
Some college or associate's2,96534.9%
Bachelor's degree1,10813.0%
Graduate or professional degree4835.7%

Commute to work

Mean travel time to work
28 min

How workers get to work

CountShare
Drove alone4,39487.2%
Carpooled2274.5%
Public transit00.0%
Walked601.2%
Bicycle110.2%
Worked from home2915.8%
Other means541.1%

Travel time

CountShare
Under 15 min1,56833.0%
15 to 29 min1,15824.4%
30 to 44 min1,21925.7%
45 to 59 min4198.8%
60+ min3828.0%

Households

Average household size
2.30
Poverty rate
11.7% (1,334 of 11,367)
CountShare
Family households3,25365.5%
Nonfamily households1,71134.5%

Housing

Median year structure built
1962

Occupancy

CountShare
Occupied4,96485.2%
Vacant86014.8%

Tenure (of occupied units)

CountShare
Owner-occupied3,95779.7%
Renter-occupied1,00720.3%

Units in structure

CountShare
1-unit, detached5,23990.0%
1-unit, attached631.1%
2 to 4 units3375.8%
5 to 19 units981.7%
20 or more units100.2%
Mobile home & other771.3%

Geography

County GEOID
17123
State
Illinois
Land area
387 sq mi
Water area
12 sq mi
Center point
41.0311, -89.3424

Cities & places

8

Compare with nearby counties

5

Illinois rankings

21

Other counties in Illinois

101