Lake County Population

1840–2026

232.29K

2026 projection

0.1% since 2020 (decrease)

050K100K150K200K250K1840186018801900192019401960198020002020

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.
2026232,294+770.03%
2025232,217+770.03%
2024232,140+4920.21%
2023231,648-500.02%
2022231,698-4810.21%
2021232,179-3380.15%
2020232,517+2,7781.21%
2019229,739-1170.05%
2018229,856-2580.11%
2017230,114+6150.27%

Showing 10 of 33 years.

Lake County Demographics

44.1median age

Median age

Female45.9 yrs
Male42.5 yrs

Adults

187,416
50,308 seniors (65+) · 27% of adults137,108 other adults

Sex

Female 50.8% · 117,936Male 49.2% · 114,280

Population by age

MaleFemale85+ years, male: 2,28385+ years, female: 3,64380–84 years, male: 2,32580–84 years, female: 3,32575–79 years, male: 3,72275–79 years, female: 5,19570–74 years, male: 6,59270–74 years, female: 6,96265–69 years, male: 7,41265–69 years, female: 8,84960–64 years, male: 8,68260–64 years, female: 10,01755–59 years, male: 8,18555–59 years, female: 7,66650–54 years, male: 7,68950–54 years, female: 7,68845–49 years, male: 6,66445–49 years, female: 6,66840–44 years, male: 7,17840–44 years, female: 6,62735–39 years, male: 7,04435–39 years, female: 6,99130–34 years, male: 7,23230–34 years, female: 7,23125–29 years, male: 6,79125–29 years, female: 6,47320–24 years, male: 6,61720–24 years, female: 6,66615–19 years, male: 7,25815–19 years, female: 6,53510–14 years, male: 6,37510–14 years, female: 6,6275–9 years, male: 6,5775–9 years, female: 5,5020–4 years, male: 5,6540–4 years, female: 5,27185+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K

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 2,322 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

$80,925median household income

Median household income

$80,925

Half of households earn more, half earn less

Median earnings

$54,506

Typical yearly pay for a worker 25 or older.

Poverty rate

8.3%

About 1 in 12 residents

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

Lake 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%52%47%
Never married30%33%28%
Divorced13%11%15%
Widowed7%3%10%
Separated<1%<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