This graph shows the population density in the federal state of Illinois from 1960 to 2018. In 2018, the population density of Illinois stood at 229.5 residents per square mile of land area.
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ProQuest. (December 5, 2019). Population density in Illinois from 1960 to 2018 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 16, 2026, from /statistics/304712/illinois-population-density/
ProQuest. "Population density in Illinois from 1960 to 2018." Chart. December 5, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 16, 2026. /statistics/304712/illinois-population-density/
ProQuest. (2019). Population density in Illinois from 1960 to 2018. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 16, 2026. /statistics/304712/illinois-population-density/
ProQuest. "Population Density in Illinois from 1960 to 2018." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 5 Dec 2019, /statistics/304712/illinois-population-density/
ProQuest, Population density in Illinois from 1960 to 2018 ÌÇÐÄÆƽâ°æ, /statistics/304712/illinois-population-density/ (last visited July 16, 2026)
Population density in Illinois from 1960 to 2018 [Graph], ProQuest, December 5, 2019. [Online]. Available: /statistics/304712/illinois-population-density/
