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Chicago suburb named Illinois' biggest 'boomtown' in new study

By Nic Flosi
Published  December 3, 2025 9:35am CST
Plainfield
FOX 32 Chicago

The Brief

    • A new study named Plainfield as Illinois' biggest "boomtown."
    • The southwest suburb posted rising population and incomes between 2015 and 2023.
    • The national list is led by Fulshear, Texas.

CHICAGO - A Chicago suburb is Illinois' biggest "boomtown," according to a new analysis of economic and population growth across the country.

What we know:

The GOBankingRates study looked at U.S. Census American Community Survey data from 2015 to 2023, taking into account cities with populations between 25,000 and 500,000.

Plainfield, a southwest suburb of Chicago, topped the list for Illinois after its population grew nearly 12% over eight years, reaching 45,705 in 2023. The community also saw a 43% jump in per-capita income during that period.

Next door, Indiana’s biggest boomtown is Westfield, which logged a 51.5% population increase and a nearly 57% rise in per-capita income.

Big picture view:

Nationally, Fulshear, Texas, earned the No. 1 spot after expanding its population by 736% from 2015 to 2023.

Other top-ranked boomtowns include Fort Mill, South Carolina; Queen Creek, Arizona; Herriman, Utah; and Windsor, Colorado.

What you can do:

The GOBankingRates study examined 49 states, excluding Hawaii. To learn more, click HERE.

The Source: The information in this news story came from GOBankingRates.

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