Population Density Comparison
Demographics

Illinois vs Kansas: Population Density

Illinois is more densely populated than Kansas.

Illinois flag
Illinois
IL • Midwest
Winner
221.2 per sq mi
Number of residents per square mile.
Kansas flag
Kansas
KS • Midwest
35.7 per sq mi
Number of residents per square mile.

Visual Comparison

Illinois 221.2 per sq mi
Kansas 35.7 per sq mi

Difference: 185.5 per sq mi — Illinois leads.

National Rankings

Where They Rank Nationally

See where both states fall among all 50 states for population density.

Illinois #12 · 221.2 per sq mi
Kansas #41 · 35.7 per sq mi
Lowest Highest

Top 10 States — Population Density

#1 New Jersey flag New Jersey
1,064.9 per sq mi
#2 Rhode Island flag Rhode Island
710.3 per sq mi
#3 Massachusetts flag Massachusetts
666.1 per sq mi
#4 Connecticut flag Connecticut
650.5 per sq mi
#5 Maryland flag Maryland
497.9 per sq mi
#6 Delaware flag Delaware
397.7 per sq mi
#7 New York flag New York
370.3 per sq mi
#8 Florida flag Florida
327.5 per sq mi
#9 Pennsylvania flag Pennsylvania
282.3 per sq mi
#10 Ohio flag Ohio
263.2 per sq mi
Selected states
#12 Illinois flag Illinois
221.2 per sq mi
#41 Kansas flag Kansas
35.7 per sq mi

Illinois ranks 12th and Kansas ranks 41st nationally for population density.

Related Context

Density in Context

Population density shapes commutes, housing costs, and the feel of daily life.

Metric
Illinois
Kansas
Population
12,812,508
2,937,880
Land Area
57,914 sq mi
82,278 sq mi
Median Home Value
$247,500
$185,900
Violent Crime / 100k
390.5
394.2
Cost of Living Index
95.2
90.2

What This Means

Illinois vs Kansas: Population Density in context

Illinois has a population density of 221.2 per sq mi, compared with 35.7 per sq mi in Kansas — roughly 6.2× the Kansas figure. Number of residents per square mile.

Illinois
221.2 per sq mi
Kansas
35.7 per sq mi
Difference
185.5 per sq mi

People Also Ask

Illinois vs Kansas Population Density — Common Questions

Q What is Illinois's population density?

Illinois's population density is 221.2 per sq mi.

Q What is Kansas's population density?

Kansas's population density is 35.7 per sq mi.

Q Which state has a higher population density — Illinois or Kansas?

Illinois is more densely populated than Kansas.

Q How much more population density does Illinois have compared to Kansas?

185.5 per sq mi.

More Comparisons: Illinois vs Kansas

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Sources: Core demographic data comes from the 2020 U.S. Census, with land area from U.S. Census Bureau TIGER files. Income, housing, affordability, and tax fields are maintained in our comparison dataset; purchasing-power figures use BEA Regional Price Parities. Minimum wage data comes from the U.S. Department of Labor, gas prices from AAA, and electricity rates from the U.S. Energy Information Administration. Political control and election fields use 2024 presidential results together with National Conference of State Legislatures data. Gun-law labels use the Giffords scorecard, alcohol system data comes from NABCA, and marijuana status uses NCSL's state cannabis laws tracker.