Fitchburg, MA
2025 and 2035 projected population

Ever wonder how many people live in Fitchburg, MA 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 Fitchburg, MA for years 2025 through 2035.

Population Growth Rate (Year over Year)

41,60041,80042,00042,20042,40042,60042,800-1.00%-0.50%0.00%0.50%1.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

41,948

Growth

0.00%

2021

Population

41,665

Growth

-0.67%

2022

Population

41,668

Growth

0.01%

2023

Population

41,840

Growth

0.41%

2024

Population

42,145

Growth

0.73%

2025

Population

42,184

Growth

0.09%

2026

Population

42,269

Growth

0.20%

2027

Population

42,354

Growth

0.20%

2028

Population

42,443

Growth

0.21%

2029

Population

42,532

Growth

0.21%

2030

Population

42,623

Growth

0.21%

2031

Population

42,651

Growth

0.07%

2032

Population

42,679

Growth

0.07%

2033

Population

42,706

Growth

0.06%

2034

Population

42,734

Growth

0.07%

2035

Population

42,763

Growth

0.07%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Fitchburg, MA

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 Fitchburg, MA

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

U.S. Zip code

2020 census

2025 population

2030 population

Open
0142040,57641,84342,278View full zip code report, 01420

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