Watertown, SD
2025 and 2035 projected population

Ever wonder how many people live in Watertown, SD 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 Watertown, SD for years 2025 through 2035.

Population Growth Rate (Year over Year)

22,50023,00023,50024,00024,50025,00025,5000.00%0.50%1.00%1.50%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

22,660

Growth

0.00%

2021

Population

22,801

Growth

0.62%

2022

Population

23,045

Growth

1.07%

2023

Population

23,209

Growth

0.71%

2024

Population

23,492

Growth

1.22%

2025

Population

23,711

Growth

0.93%

2026

Population

23,828

Growth

0.49%

2027

Population

23,955

Growth

0.53%

2028

Population

24,092

Growth

0.57%

2029

Population

24,236

Growth

0.60%

2030

Population

24,381

Growth

0.60%

2031

Population

24,490

Growth

0.45%

2032

Population

24,604

Growth

0.46%

2033

Population

24,728

Growth

0.51%

2034

Population

24,866

Growth

0.56%

2035

Population

25,006

Growth

0.57%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Watertown, SD

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 Watertown, SD reportDownload sample csv report

Top 25 most populated zip codes in Watertown, SD

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

U.S. Zip code

2020 census

2025 population

2030 population

Open
5720125,58226,78227,538View full zip code report, 57201

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