Collinsville, IL
2025 and 2035 projected population

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

Population Growth Rate (Year over Year)

22,50023,00023,50024,00024,500-1.00%-0.80%-0.60%-0.40%-0.20%0.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

24,408

Growth

0.00%

2021

Population

24,206

Growth

-0.83%

2022

Population

24,016

Growth

-0.78%

2023

Population

23,880

Growth

-0.57%

2024

Population

23,766

Growth

-0.48%

2025

Population

23,660

Growth

-0.44%

2026

Population

23,576

Growth

-0.36%

2027

Population

23,492

Growth

-0.36%

2028

Population

23,409

Growth

-0.35%

2029

Population

23,330

Growth

-0.34%

2030

Population

23,254

Growth

-0.33%

2031

Population

23,141

Growth

-0.48%

2032

Population

23,029

Growth

-0.48%

2033

Population

22,916

Growth

-0.49%

2034

Population

22,808

Growth

-0.48%

2035

Population

22,702

Growth

-0.46%

Last update at Tue Jun 30 2026

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

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

U.S. Zip code

2020 census

2025 population

2030 population

Open
6223432,57931,60831,067View full zip code report, 62234

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