Illinois projected population growth from 2025 through 2035
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 2035.
Population Growth Rate (Year over Year)
Zip code level csv report on population forecast and economic development in Illinois
Our team has created a comprehensive report on population forecast and economic development by zip code using our proprietary AI models.
Top 10 most populated cities in Illinois
Our model provides a detailed 2025 through 2035 forecasted population growth for every city and zip code in Illinois.
City | 2020 census | 2025 population | 2030 population | 2035 population | Open |
|---|---|---|---|---|---|
| Chicago | 2,699,347 | 2,694,668 | 2,662,490 | 2,630,697 | View city insights, Chicago |
| Aurora | 199,326 | 180,001 | 180,338 | 180,676 | View city insights, Aurora |
| Naperville | 147,734 | 149,269 | 148,883 | 148,499 | View city insights, Naperville |
| Rockford | 147,441 | 145,878 | 141,544 | 137,338 | View city insights, Rockford |
| Joliet | 147,323 | 149,892 | 150,160 | 150,429 | View city insights, Joliet |
| Springfield | 115,075 | 113,024 | 111,317 | 109,636 | View city insights, Springfield |
| Peoria | 112,644 | 111,375 | 109,522 | 107,700 | View city insights, Peoria |
| Elgin | 112,062 | 114,286 | 114,739 | 115,193 | View city insights, Elgin |
| Champaign | 88,288 | 89,013 | 89,493 | 89,976 | View city insights, Champaign |
| Waukegan | 87,157 | 88,564 | 87,683 | 86,811 | View city insights, Waukegan |
Looking for granular data to embed in your applications or data pipelines?
Explore our U.S. forecasted population data by state, county, city, and zip code. And request your free data sample today.
Explore dataset