Granite City, IL
2025 and 2035 projected population

Ever wonder how many people live in Granite City, 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 Granite City, IL for years 2025 through 2035.

Population Growth Rate (Year over Year)

25,00025,50026,00026,50027,00027,50028,000-1.00%-0.80%-0.60%-0.40%-0.20%0.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

27,566

Growth

0.00%

2021

Population

27,332

Growth

-0.85%

2022

Population

27,125

Growth

-0.76%

2023

Population

26,970

Growth

-0.57%

2024

Population

26,854

Growth

-0.43%

2025

Population

26,707

Growth

-0.55%

2026

Population

26,595

Growth

-0.42%

2027

Population

26,484

Growth

-0.42%

2028

Population

26,375

Growth

-0.41%

2029

Population

26,270

Growth

-0.40%

2030

Population

26,170

Growth

-0.38%

2031

Population

26,020

Growth

-0.57%

2032

Population

25,871

Growth

-0.57%

2033

Population

25,721

Growth

-0.58%

2034

Population

25,576

Growth

-0.56%

2035

Population

25,436

Growth

-0.55%

Last update at Tue Jun 30 2026

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

Our team has created a comprehensive report on population forecast and economic development by zip code using our proprietary AI models.

Top 25 most populated zip codes in Granite City, IL

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

U.S. Zip code

2020 census

2025 population

2030 population

Open
6204042,48740,02939,221View full zip code report, 62040

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