Lake County Population

1890–2026

468.68K

2026 projection

21.4% since 2020 (increase)

0100K200K300K400K500K1900192019401960198020002020

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 Lake County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026468,682+12,6142.77%
2025456,068+12,6142.84%
2024443,454+17,0013.99%
2023426,453+15,5103.77%
2022410,943+14,5433.67%
2021396,400+10,1792.64%
2020386,221+19,2805.25%
2019366,941+9,8552.76%
2018357,086+11,2383.25%
2017345,848+10,6393.17%

Showing 10 of 28 years.

Lake County Demographics

46.5median age

Median age

Female48 yrs
Male45.1 yrs

Adults

334,459
109,863 seniors (65+) · 33% of adults224,596 other adults

Sex

Female 51.3% · 211,892Male 48.7% · 201,032

Population by age

MaleFemale85+ years, male: 5,18385+ years, female: 7,22480–84 years, male: 7,01780–84 years, female: 7,58875–79 years, male: 11,56275–79 years, female: 12,89170–74 years, male: 12,73170–74 years, female: 14,64365–69 years, male: 14,08365–69 years, female: 16,94160–64 years, male: 13,98460–64 years, female: 15,81855–59 years, male: 12,91955–59 years, female: 13,35850–54 years, male: 12,07650–54 years, female: 12,75545–49 years, male: 11,18745–49 years, female: 11,70040–44 years, male: 13,63340–44 years, female: 12,94835–39 years, male: 10,03435–39 years, female: 11,45630–34 years, male: 11,84030–34 years, female: 12,33525–29 years, male: 10,75225–29 years, female: 10,96120–24 years, male: 9,82320–24 years, female: 9,54315–19 years, male: 11,29715–19 years, female: 10,49310–14 years, male: 11,12610–14 years, female: 11,1635–9 years, male: 11,9635–9 years, female: 10,6160–4 years, male: 9,8220–4 years, female: 9,45985+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K15K15K

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 4,129 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

Lake County Income

$73,161median household income

Median household income

$73,161

Half of households earn more, half earn less

Median earnings

$46,704

Typical yearly pay for a worker 25 or older.

Poverty rate

8.9%

About 1 in 11 residents

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

Lake County Marital Status

54% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married54%57%51%
Never married26%29%24%
Divorced11%9%13%
Widowed7%4%11%
Separated1%1%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