Lake County Population

1870–2026

67,664

2026 projection

0.8% since 2020 (decrease)

010K20K30K40K50K60K70K18801900192019401960198020002020

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.
202667,664-1080.16%
202567,772-1080.16%
202467,880-1460.21%
202368,026-2450.36%
202268,271-4270.62%
202168,698+4900.72%
202068,208+3,7455.81%
201964,463+690.11%
201864,394+2620.41%
201764,132+2200.34%

Showing 10 of 30 years.

Lake County Demographics

44.1median age

Median age

Female45.4 yrs
Male43.3 yrs

Adults

53,218
16,290 seniors (65+) · 31% of adults36,928 other adults

Sex

Female 49.9% · 34,028Male 50.1% · 34,124

Population by age

MaleFemale85+ years, male: 55285+ years, female: 95880–84 years, male: 80680–84 years, female: 1,02575–79 years, male: 1,75975–79 years, female: 1,43170–74 years, male: 2,27170–74 years, female: 2,29965–69 years, male: 2,48865–69 years, female: 2,70160–64 years, male: 2,55460–64 years, female: 2,64655–59 years, male: 2,21255–59 years, female: 2,31550–54 years, male: 2,01950–54 years, female: 1,97945–49 years, male: 1,65145–49 years, female: 1,80440–44 years, male: 2,12940–44 years, female: 2,00635–39 years, male: 1,85835–39 years, female: 1,88630–34 years, male: 2,15030–34 years, female: 1,99025–29 years, male: 1,76025–29 years, female: 1,63520–24 years, male: 1,52720–24 years, female: 1,66615–19 years, male: 2,08415–19 years, female: 1,61910–14 years, male: 2,43110–14 years, female: 2,1225–9 years, male: 2,0005–9 years, female: 2,0680–4 years, male: 1,8730–4 years, female: 1,87885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

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 682 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

$60,621median household income

Median household income

$60,621

Half of households earn more, half earn less

Median earnings

$42,871

Typical yearly pay for a worker 25 or older.

Poverty rate

17%

About 1 in 6 residents

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

Lake County Marital Status

41% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married41%41%41%
Never married33%38%27%
Divorced15%13%17%
Widowed7%4%11%
Separated3%4%3%

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