LaSalle County Flag

LaSalle County

State:
Illinois
County Seat:
Ottawa

LaSalle County's estimated 2025 population is 108,565 with a growth rate of 0.12% in the past year according to the most recent United States census data. LaSalle County is the 17th largest county in Illinois. The 2010 population was 113,812 and has seen a growth of -4.61% since that time.

108,565
Total Population
96
Population Density (mi²)
17
Population Rank (State)
128 0.12%
Annual Population Growth

LaSalle County Population

LaSalle County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of LaSalle County includes 86.84% White, 4.07% other race, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White94,69686.84%
Two or more races5,9115.42%
Other race4,4374.07%
Black or African American2,9562.71%
Asian9460.87%
Native American920.08%
Native Hawaiian or Pacific Islander110.01%

LaSalle County Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

LaSalle County's average per capita income is $46,646. Household income levels show a median of $72,281. The poverty rate stands at 13.46%.

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$102,175$121,509
Families$88,077$105,075
Households$72,281$90,125
Non Families$42,740$58,845

$46,646

Average Income

$72,281

Median Household Income

13.46%

Poverty Rate