Mercer Island, WA
2025 and 2035 projected population

Ever wonder how many people live in Mercer Island, WA 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 Mercer Island, WA for years 2025 through 2035.

Population Growth Rate (Year over Year)

25,00026,00027,00028,00029,000-2.00%-1.00%0.00%1.00%2.00%3.00%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

25,754

Growth

0.00%

2021

Population

25,337

Growth

-1.62%

2022

Population

25,105

Growth

-0.92%

2023

Population

25,064

Growth

-0.16%

2024

Population

25,302

Growth

0.95%

2025

Population

25,836

Growth

2.11%

2026

Population

26,085

Growth

0.96%

2027

Population

26,341

Growth

0.98%

2028

Population

26,604

Growth

1.00%

2029

Population

26,876

Growth

1.02%

2030

Population

27,154

Growth

1.04%

2031

Population

27,395

Growth

0.89%

2032

Population

27,640

Growth

0.89%

2033

Population

27,887

Growth

0.89%

2034

Population

28,139

Growth

0.90%

2035

Population

28,396

Growth

0.91%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Mercer Island, WA

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

Contact Us for the full Mercer Island, WA reportDownload sample csv report

Top 25 most populated zip codes in Mercer Island, WA

Our model provides a detailed 2025 through 2035 projected population growth for every zip code in Mercer Island, WA.

U.S. Zip code

2020 census

2025 population

2030 population

Open
9804025,82026,13727,471View full zip code report, 98040

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