Illinois projected population growth from 2025 through 2030
Illinois, the Prairie State, is known for its vibrant cities, diverse culture, and rich history. From the iconic skyline of Chicago to the rolling farmland of central Illinois, the state offers a blend of urban sophistication and rural charm. With a diverse economy supported by industries such as finance, manufacturing, and healthcare, Illinois continues to attract individuals seeking career opportunities and cultural amenities.
Illinois forecasted population
Aterio data team has developed an AI enhanced model that helps organizations understand the forecasted growth of population in Illinois for years 2025 through 2030.
Illinois Last population count in 2020
12,716,164
According to the latest census data, Illinois ranks as the 13th most populous state in the U.S.
Illinois Projected population by 2025
12,737,465
For year 2025, Illinois population is expected to grow 0.2% from 2020.
Illinois Projected population by 2030
12,679,497
For year 2030, Illinois population is expected to decrease -0.5% from 2025.
Top 10 most populated cities in Illinois
Our model provides a detailed 2025 through 2030 forecasted population growth for every city and zip code in Illinois.
City | 2020 census | 2025 population | 2030 population | Open |
|---|---|---|---|---|
| Chicago | 2,699,347 | 2,732,265 | 2,759,012 | View city insights, Chicago |
| Aurora | 199,326 | 202,883 | 210,712 | View city insights, Aurora |
| Naperville | 147,734 | 150,179 | 152,925 | View city insights, Naperville |
| Rockford | 147,441 | 148,031 | 150,330 | View city insights, Rockford |
| Joliet | 147,323 | 150,808 | 152,059 | View city insights, Joliet |
| Springfield | 115,075 | 114,671 | 115,688 | View city insights, Springfield |
| Peoria | 112,644 | 113,167 | 114,362 | View city insights, Peoria |
| Elgin | 112,062 | 114,973 | 116,941 | View city insights, Elgin |
| Champaign | 88,288 | 89,150 | 92,370 | View city insights, Champaign |
| Waukegan | 87,157 | 88,778 | 88,536 | View city insights, Waukegan |
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