LaSalle County Population

1840–2026

107.67K

2026 projection

1.6% since 2020 (decrease)

020K40K60K80K100K120K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for LaSalle County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026107,671-1020.09%
2025107,773-1020.09%
2024107,875+30.00%
2023107,872+740.07%
2022107,798-8810.81%
2021108,679-7320.67%
2020109,411+8940.82%
2019108,517-6190.57%
2018109,136-4540.41%
2017109,590-5860.53%

Showing 10 of 33 years.

LaSalle County Demographics

42.2median age

Median age

Female43.4 yrs
Male40.7 yrs

Adults

85,694
21,669 seniors (65+) · 25% of adults64,025 other adults

Sex

Female 49% · 53,302Male 51% · 55,412

Population by age

MaleFemale85+ years, male: 89085+ years, female: 1,83880–84 years, male: 1,26580–84 years, female: 1,49575–79 years, male: 1,63775–79 years, female: 1,73570–74 years, male: 3,00770–74 years, female: 3,16165–69 years, male: 3,35465–69 years, female: 3,28760–64 years, male: 3,76060–64 years, female: 4,26255–59 years, male: 4,23655–59 years, female: 3,62650–54 years, male: 3,37950–54 years, female: 3,33145–49 years, male: 3,18745–49 years, female: 3,00840–44 years, male: 3,48940–44 years, female: 3,35035–39 years, male: 3,68835–39 years, female: 3,07530–34 years, male: 3,51330–34 years, female: 3,07425–29 years, male: 3,47925–29 years, female: 3,00820–24 years, male: 3,35120–24 years, female: 2,86515–19 years, male: 3,44415–19 years, female: 3,14210–14 years, male: 3,68310–14 years, female: 3,1865–9 years, male: 3,1765–9 years, female: 3,0900–4 years, male: 2,8740–4 years, female: 2,76985+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1,087 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

LaSalle County Income

$73,045median household income

Median household income

$73,045

Half of households earn more, half earn less

Median earnings

$48,490

Typical yearly pay for a worker 25 or older.

Poverty rate

13.9%

About 1 in 7 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

LaSalle County Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%50%49%
Never married30%34%27%
Divorced12%12%13%
Widowed7%3%10%
Separated2%2%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year