Data as of November 4, 2026 · refreshed automatically from the official Indiana voter file
Lake County, Indiana has 369,482 active registered voters across 335 precincts, as of November 2026.
Party registration
Indiana doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
How Lake County voted for president
Election results are public records.
Lake County at a glance.
Lake County had an estimated 502,955 residents in July 2024, the second most populous of Indiana's 92 counties, up 0.9% since the 2020 census. Of those, 388,901 are 18 or older, the voting-age population, and 18.8% are 65 or older. Its 369,482 active registered voters equal about 95.0% of that voting-age population.
It covers 499 square miles of land (1,008 people per square mile). The largest cities and towns are Hammond (76,030), Gary (67,555), Merrillville (36,989), Crown Point (35,097) and Schererville (29,780). The American Community Survey (2020-2024) puts it at a median age of 39.7, a median household income of $71,493, 25.8% of adults 25 and older holding a bachelor's degree or higher and 71.7% of occupied homes owned by the people living in them.
In 2024, 209,407 votes were cast for president, about 53.8% of the voting-age population; the Democratic ticket took 52.1% and the Republican ticket 46.5%. The two-party margin moved from D+34.2 in 2008 to D+5.6 in 2024.
- Population (2024 estimate)
- 502,955
- Population (2020 census base)
- 498,695
- Voting-age population (18+)
- 388,901
- Active voters per 100 adults
- 95.0
- Residents 65 and older
- 18.8%
- People per square mile
- 1,008
- Land area
- 499 sq mi
- Median age
- 39.7
- Median household income
- $71,493
- Adults 25+ with a bachelor's degree
- 25.8%
- Owner-occupied homes
- 71.7%
Largest cities and towns
- Hammond 76,030
- Gary 67,555
- Merrillville 36,989
- Crown Point 35,097
- Schererville 29,780
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 52.1% | 46.5% | D+5.6 | 209,407 |
| 2020 | 56.8% | 41.7% | D+15.1 | 219,956 |
| 2016 | 58.4% | 37.7% | D+20.7 | 200,247 |
| 2012 | 64.9% | 33.9% | D+31.0 | 201,648 |
| 2008 | 66.7% | 32.5% | D+34.2 | 208,757 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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