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Lake County, IN Demographics

Lake County, IN is the 2nd most populous of 92 counties in Indiana, with 498,700 residents across 499 square miles. That is about 1,000 people per square mile.

At the 2020 census

Population 498,700
Land area 499 sq mi
Density 1,000 / sq mi

Data: 2020 Census · American Community Survey 2024

How Lake County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Lake County, IN

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Lake County, IN — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Lake County, IN

Name Population Sq mi Per sq mi
Census Tract 429.01 8,269 7.2 1,146
Census Tract 434.01 7,676 62.0 124
Census Tract 433.02 7,621 22.3 342
Census Tract 434.03 7,276 5.4 1,345
Census Tract 426.02 7,061 5.2 1,366
Census Tract 420 6,922 4.8 1,453
Census Tract 422 6,630 5.4 1,219
Census Tract 431.04 6,528 3.4 1,917
Census Tract 418 6,438 4.5 1,426
Census Tract 203 6,414 4.3 1,478
Census Tract 432.03 6,412 4.7 1,369
Census Tract 409 6,343 3.6 1,758
Census Tract 424.01 6,334 2.8 2,244
Census Tract 425.01 6,332 1.4 4,437
Census Tract 426.07 6,248 2.9 2,133
Census Tract 404.03 5,976 1.2 4,967
Census Tract 429.04 5,772 19.0 304
Census Tract 428.03 5,738 1.4 3,959
Census Tract 421 5,698 2.0 2,792
Census Tract 427.02 5,482 1.9 2,886
Census Tract 434.05 5,449 54.6 100
Census Tract 426.11 5,347 5.3 1,005
Census Tract 410.01 5,343 1.6 3,376
Census Tract 404.01 5,317 1.8 2,959
Census Tract 433.01 5,306 2.4 2,175
Census Tract 219 5,286 0.7 7,341
Census Tract 428.02 5,183 1.7 3,007
Census Tract 416 5,086 2.3 2,252
Census Tract 210 5,081 2.1 2,371
Census Tract 419 5,031 2.5 1,995
Census Tract 220 4,996 1.1 4,670
Census Tract 407 4,993 1.4 3,608
Census Tract 207 4,874 0.8 6,374
Census Tract 432.04 4,867 13.3 365
Census Tract 214 4,865 0.7 6,519
Census Tract 306 4,811 0.9 5,296
Census Tract 417 4,774 3.6 1,316
Census Tract 204 4,732 1.4 3,343
Census Tract 217 4,683 0.8 5,992
Census Tract 427.03 4,675 2.0 2,343
Census Tract 201 4,669 0.5 8,746
Census Tract 430.01 4,663 4.2 1,114
Census Tract 125 4,635 1.1 4,097
Census Tract 426.08 4,604 3.0 1,520
Census Tract 410.02 4,502 0.9 4,819
Census Tract 404.02 4,493 1.7 2,633
Census Tract 426.12 4,426 2.6 1,726
Census Tract 424.03 4,399 2.2 1,956
Census Tract 424.05 4,304 3.2 1,366
Census Tract 423.01 4,301 21.6 199
Census Tract 426.10 4,300 2.8 1,509
Census Tract 208 4,272 1.5 2,785
Census Tract 403.02 4,267 1.0 4,483
Census Tract 428.04 4,247 2.6 1,658
Census Tract 431.03 4,205 2.6 1,618
Census Tract 426.13 4,184 3.1 1,363
Census Tract 429.03 4,173 2.6 1,630
Census Tract 209 4,154 2.1 1,952
Census Tract 427.04 4,150 4.0 1,043
Census Tract 111 4,148 1.2 3,522
Census Tract 405.01 4,061 0.7 5,422
Census Tract 101 4,013 2.2 1,824
Census Tract 124 3,991 1.6 2,420
Census Tract 308 3,932 0.4 10,812
Census Tract 112 3,880 1.4 2,809
Census Tract 305 3,845 0.5 8,080
Census Tract 403.01 3,841 1.9 2,050
Census Tract 408.02 3,819 0.8 4,763
Census Tract 425.08 3,813 2.6 1,471
Census Tract 408.01 3,809 1.1 3,504
Census Tract 425.09 3,733 2.9 1,278
Census Tract 406 3,726 1.4 2,664
Census Tract 213 3,661 1.0 3,661
Census Tract 309 3,647 0.8 4,855
Census Tract 432.01 3,585 4.1 865
Census Tract 405.02 3,576 1.5 2,405
Census Tract 218 3,568 0.8 4,592
Census Tract 205 3,550 0.5 7,652
Census Tract 425.07 3,487 1.8 1,928
Census Tract 426.06 3,327 0.7 4,704
Census Tract 425.03 3,296 2.2 1,515
Census Tract 425.06 3,256 1.9 1,737
Census Tract 402 3,241 0.3 12,087
Census Tract 103.02 3,175 2.4 1,349
Census Tract 211 3,135 1.3 2,502
Census Tract 102.07 3,126 2.2 1,390
Census Tract 103.04 3,048 5.9 515
Census Tract 216 2,997 0.6 5,400
Census Tract 430.04 2,939 0.8 3,593
Census Tract 104 2,939 0.5 6,481
Census Tract 127 2,898 1.0 2,871
Census Tract 431.01 2,876 4.9 583
Census Tract 304 2,844 4.3 665
Census Tract 424.04 2,765 1.6 1,737
Census Tract 414 2,666 2.7 976
Census Tract 430.03 2,555 1.2 2,074
Census Tract 413.02 2,514 2.2 1,150
Census Tract 423.02 2,509 4.8 522
Census Tract 202 2,497 1.5 1,662
Census Tract 215 2,459 0.5 4,952

Showing the 100 most populous of 131 — the rest are shown on the map.

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →