Saint Marys, PA
2025 and 2035 projected population

Ever wonder how many people live in Saint Marys, PA 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 Saint Marys, PA for years 2025 through 2035.

Population Growth Rate (Year over Year)

11,60011,80012,00012,20012,40012,60012,800-1.20%-1.00%-0.80%-0.60%-0.40%-0.20%0.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

12,739

Growth

0.00%

2021

Population

12,653

Growth

-0.68%

2022

Population

12,511

Growth

-1.12%

2023

Population

12,409

Growth

-0.82%

2024

Population

12,361

Growth

-0.39%

2025

Population

12,224

Growth

-1.11%

2026

Population

12,163

Growth

-0.50%

2027

Population

12,108

Growth

-0.45%

2028

Population

12,061

Growth

-0.39%

2029

Population

12,020

Growth

-0.34%

2030

Population

11,987

Growth

-0.28%

2031

Population

11,913

Growth

-0.62%

2032

Population

11,846

Growth

-0.57%

2033

Population

11,785

Growth

-0.51%

2034

Population

11,730

Growth

-0.46%

2035

Population

11,682

Growth

-0.41%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Saint Marys, PA

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

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Top 25 most populated zip codes in Saint Marys, PA

Our model provides a detailed 2025 through 2035 projected population growth for every zip code in Saint Marys, PA.

U.S. Zip code

2020 census

2025 population

2030 population

Open
1585712,43312,63912,394View full zip code report, 15857

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