Janesville, WI
2025 and 2035 projected population

Ever wonder how many people live in Janesville, WI 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 Janesville, WI for years 2025 through 2035.

Population Growth Rate (Year over Year)

65,60065,80066,00066,20066,40066,600-0.60%-0.40%-0.20%0.00%0.20%0.40%0.60%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

65,633

Growth

0.00%

2021

Population

66,013

Growth

0.58%

2022

Population

65,964

Growth

-0.07%

2023

Population

66,130

Growth

0.25%

2024

Population

66,428

Growth

0.45%

2025

Population

66,081

Growth

-0.52%

2026

Population

66,093

Growth

0.02%

2027

Population

66,105

Growth

0.02%

2028

Population

66,130

Growth

0.04%

2029

Population

66,151

Growth

0.03%

2030

Population

66,170

Growth

0.03%

2031

Population

66,069

Growth

-0.15%

2032

Population

65,965

Growth

-0.16%

2033

Population

65,856

Growth

-0.17%

2034

Population

65,753

Growth

-0.16%

2035

Population

65,650

Growth

-0.16%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Janesville, WI

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 Janesville, WI

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

U.S. Zip code

2020 census

2025 population

2030 population

Open
5354630,12329,28529,361View full zip code report, 53546
5354522,76323,90823,891View full zip code report, 53545
5354820,16520,42920,454View full zip code report, 53548

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