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Lake County, Indiana Demographics 2026

Lake County, Indiana has a population of 500,379, the 2nd most populous county in Indiana. The median household income is $71,493 and the median home value is $230,600. The poverty rate is 14.3%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Lake County Quick Facts

Population 500,379
Median Household Income $71,493
Median Home Value $230,600
Poverty Rate 14.3%
Unemployment Rate 6.1%
Median Age 39.7 years
Homeownership Rate 71.7%
Affordability Ratio 3.2x
Bachelor's Degree+ 25.8%
High School Graduation 90.2%
Cities/Places 22
Population 500,379 2nd of 92
Median Income $71,493 about the same as state
Poverty Rate 14.3%
Unemployment 6.1%

How Lake County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population498,990500,379+0.3%
Median household income$68,985$71,493+3.6%
Median home value$214,700$230,600+7.4%

Economy & Housing

Household Income Distribution

Under $25K 17.2%
$25K-$50K 18.4%
$50K-$100K 29.7%
$100K+ 34.7%
Detailed income brackets
Under $10K
6.3%
$10K-$15K
3.7%
$15K-$20K
3.0%
$20K-$25K
4.1%
$25K-$30K
3.4%
$30K-$35K
3.6%
$35K-$40K
3.5%
$40K-$45K
4.1%
$45K-$50K
3.8%
$50K-$60K
7.0%
$60K-$75K
9.6%
$75K-$100K
13.1%
$100K-$125K
10.0%
$125K-$150K
7.4%
$150K-$200K
9.0%
$200K+
8.3%

Employment

6.1% Unemployment Rate State: 4.3%|National: 5.2%
61.1% Labor Force Participation

Housing Overview

Owner 71.7%
Renter 28.3%
Affordability Index Affordable
3.2x home value to income ratio
Median gross rent $1,131/mo 19.0% of median household income annually

People & Demographics

Diversity Index

64out of 100
High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 41 | National average: 61

Education

Cities & Places in Lake County

CityPopulationMedian IncomePovertyHome Value
Hammond76,768$55,50419.1%$159,900
Gary68,113$38,73133.1%$94,700
Merrillville36,476$67,58712.6%$211,400
Crown Point34,393$101,6866.9%$294,800
Schererville29,701$89,4667.7%$314,900
Hobart29,558$75,16010.0%$215,200
East Chicago26,022$42,12526.3%$105,400
Munster23,733$110,1876.0%$334,300
Highland23,680$78,06211.6%$233,300
St. John22,567$131,4672.1%$406,300
Dyer16,400$107,1596.2%$322,200
Griffith16,273$76,6367.1%$210,100
Cedar Lake15,295$83,3813.5%$282,000
Lake Station13,185$59,59115.4%$137,400
Lowell11,073$84,0245.5%$248,000
Winfield7,816$135,8705.9%$409,500
Lakes of the Four Seasons7,402$121,7503.1%$337,300
Whiting4,532$71,70817.1%$198,900
New Chicago2,225$57,31316.7%$134,100
Lake Dalecarlia1,169$118,4726.2%$327,100
Schneider230$63,1824.3%$172,500
Shelby164$32,18032.9%N/A

Population Overview

Lake County is located in Indiana with a total population of 500,379. It is the 2nd most populous county out of 92 in Indiana. The county encompasses 22 Census-designated places.

Age Demographics

The median age in Lake County is 39.7 years. This is 4% higher than the state median of 38.1 years.

Economy, Income & Housing

The median household income in Lake County is $71,493. This is about the same as the state median of $71,957. It is also 11% lower than the national median of $80,734. The poverty rate stands at 14.3%. This is 16% higher than the state poverty rate of 12.3%. The unemployment rate is 6.1%. This is 42% higher than the state rate of 4.3%. The median home value is $230,600. Housing costs are 6% higher than the state median of $218,200. The home-value-to-income ratio is 3.2x. 71.7% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 70.5%.

Race & Ethnicity

The largest racial or ethnic group in Lake County is White (non-Hispanic), making up 51.4% of the population. Black or African American residents account for 22.7%. The Black or African American population is significantly higher than the state average (22.7% vs 9.1%). The Hispanic or Latino population is significantly higher than the state average (20.9% vs 8.6%).

Education

25.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 12% lower than the state rate of 29.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.2%.

Data Sources & Methodology

All figures for Lake County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Indiana and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Lake County, Indiana?

Lake County has a population of 500,379, making it the 2nd most populous county in Indiana.

What is the median income in Lake County?

The median household income in Lake County is $71,493 with a poverty rate of 14.3%.

How many cities are in Lake County, Indiana?

Lake County contains 22 Census-designated places.