New data shows Naperville Now the 3rd-Largest City in Illinois

Naperville has officially become the third-largest city in Illinois, according to the latest census data released in May 2025. This growth milestone has been attributed to its dynamic community and robust economic development, which have drawn new residents and businesses alike. Formerly fourth in population size, Naperville has overtaken Rockford, signaling its expanding influence within the state. The city’s population surge has been fueled by its high-quality education system, thriving job market, and attractive living conditions, making it a desirable location for families and professionals. As Naperville continues to grow, city officials are focusing on sustainable urban planning to accommodate increasing demands on infrastructure and public services. Residents and local businesses are optimistic about the city’s future, anticipating that this demographic shift will stimulate further economic opportunities and enhance the community’s vibrant culture.

Chicago Tribune

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