Romeoville, IL
2025 and 2035 projected population

Ever wonder how many people live in Romeoville, IL and how fast that number changes?

Aterio data team has developed an AI enhanced model that helps organizations understand the forecasted growth of population in Romeoville, IL for years 2025 through 2035.

Population Growth Rate (Year over Year)

40,80041,00041,20041,40041,600-1.00%-0.50%0.00%0.50%1.00%1.50%2.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

40,803

Growth

0.00%

2021

Population

41,449

Growth

1.58%

2022

Population

41,124

Growth

-0.78%

2023

Population

41,105

Growth

-0.05%

2024

Population

41,177

Growth

0.18%

2025

Population

41,352

Growth

0.43%

2026

Population

41,333

Growth

-0.04%

2027

Population

41,324

Growth

-0.02%

2028

Population

41,323

Growth

-0.00%

2029

Population

41,330

Growth

0.02%

2030

Population

41,346

Growth

0.04%

2031

Population

41,297

Growth

-0.12%

2032

Population

41,255

Growth

-0.10%

2033

Population

41,213

Growth

-0.10%

2034

Population

41,178

Growth

-0.08%

2035

Population

41,153

Growth

-0.06%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Romeoville, IL

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Top 25 most populated zip codes in Romeoville, IL

Our model provides a detailed 2025 through 2035 projected population growth for every zip code in Romeoville, IL.

U.S. Zip code

2020 census

2025 population

2030 population

Open
6044640,03242,15842,159View full zip code report, 60446

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