Janesville, CA demographics:
population, income, and more

Total population
2,399
-2.0% year-over-year change
Median household income
$78,466/yr
10.6% year-over-year change
Housing units
1,122
-6.3% year-over-year change

Janesville population

How many people live in Janesville

Janesville is home to 2,399 residents, according to the most recent Census data. Gender-wise, 54% of Janesville locals are male, and 46% are female.

Total population
2,399
-2.0% year-over-year change
Gender ratio
Male
54%
1,296
Female
46%
1,103
Value Percent YoY change
Male 1,296 54% 4.8%
Female 1,103 46% -8.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Janesville is 52, with the population distributed as follows: about 13.6% are children under 15, then 8.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 14.9% of the population, while another 39.6% fall into the 45 to 64 bracket. Finally, around 23% are 65 or older.

Median age
52.4
Age breakdown
Under 15
13.6%
15 to 24
8.9%
25 to 44
14.9%
45 to 64
39.6%
Over 65
23%
Value Percent YoY change
Under 15 325 13.6% -1.2%
15 to 24 214 8.9% -3.6%
25 to 44 358 14.9% -4.8%
45 to 64 951 39.6% 2.1%
Over 65 551 23% -6.5%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Janesville, 90% of the population are US-born citizens, while 0.8% have gained naturalized citizenship. At the same time, 9.2% of residents are non-citizens. There’s also a share of 8.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
90%
Non-U.S.-born citizens
0.8%
Non-citizens
9.2%
Value Percent YoY change
U.S.-born citizens 2,158 90% -2.5%
Non-U.S.-born citizens 20 0.8% -9.1%
Non-citizens 221 9.2% 4.7%
Racial breakdown
White
78.4%
Black or African American
0%
American Indian and Alaska Native
2.7%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
8.8%
Other
10.2%
Value Percent
White 1,880 78.4%
American Indian and Alaska Native 64 2.7%
Two or more races 211 8.8%
Other 244 10.2%

Households in Janesville

A peek inside Janesville households

Janesville has 942 households, with an average of 3 members in each. Of these, 70.2% are families, while the remaining 29.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
942
-9.0% year-over-year change
Average people per household
3
Non-family households
281
Family households
661
Value Percent YoY change
Non-family households 281 29.8% -12.2%
Family households 661 70.2% -7.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Janesville

The housing landscape of Janesville

Janesville's housing consists of 1,122 units, with 67.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.6% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 21.8% of the housing landscape.

Housing units
1,122
-6.3% year-over-year change
Housing types
Value Percent
1 unit, detached 755 67.3%
1 unit, attached 18 1.6%
2 units 14 1.2%
5 to 9 units 90 8%
Mobile home 245 21.8%
Homes built since 2020
11
10.0% year-over-year change

The age of buildings in Janesville

In Janesville, the median construction year is 1988. About 3.6% of homes were built before the 1940s, with another 1.3% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 41 3.6% 5.1%
Built between 1940 and 1949 15 1.3% -70.6%
Built between 1950 and 1959 39 3.5% -32.8%
Built between 1960 and 1969 65 5.8% -3.0%
Built between 1970 and 1979 235 20.9% -21.9%
Built between 1980 and 1989 204 18.2% 18.6%
Built between 1990 and 1999 400 35.6% 16.6%
Built between 2000 and 2009 112 10% -28.7%
Built in 2020 or later 11 1% 10.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Janesville occupancy rates

Out of the 942 occupied housing units in Janesville, 77.7% are owner-occupied, while 22.3% are lived in by tenants. Meanwhile, 16% of all homes on the local market sit vacant.

Occupied housing units
942
-9.0% year-over-year change
Occupancy breakdown
Renter occupied
210
Owner occupied
732
Value Percent YoY
change
Renter occupied 210 22.3% -21.6%
Owner occupied 732 77.7% -4.6%
Unoccupied housing units
16.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Janesville housing costs

Housing costs in Janesville come to a median of $1,257 per month, while tenants specifically pay a median gross rent of $1,374.

Median housing costs per month
$1,257/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Janesville
$1,374/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Janesville

Janesville education at a glance

About 34.3% of the population in Janesville went to high school, while 31.6% pursued college studies. Another 12.8% earned an associate degree and 7.7% hold a bachelor’s. Meanwhile, 1.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 247 12% 13.8%
High school diploma 707 34.3% 5.7%
College diploma 650 31.6% -13.2%
Associate degree 263 12.8% 3.5%
Bachelor's degree 158 7.7% -17.7%
Graduate degree 35 1.7% -5.4%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Janesville

How much people earn in Janesville

The average annual household income in Janesville was $89,159 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.3% change from the previous year. At the same time, the median income stood at $78,466, reflecting a +10.6% shift over the same period.

Average household income in Janesville
$89,159/year
4.3% year-over-year change
Median household income in Janesville
$78,466/year
10.6% year-over-year change

Janesville income by age

In Janesville, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $112,619. Those with someone between 45 and 64 in charge, often well established professionally, earn $87,639 overall. Overall, 92.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $112,619 46.5%
45 - 64 $87,639 N/A
Over 65 $65,893 -8.4%
Above poverty level
2,218
Below poverty level
181
Value Percent YoY
change
Above poverty level 2,218 92.5% -2.9%
Below poverty level 181 7.5% 10.4%

Average renter income in Janesville

To get a better sense of what renters earn on average in Janesville, their median household income was $34,123 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 48.3%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$34,123
Rent-to-income ratio
48.3%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Janesville

Workforce and job types in Janesville

The job market in Janesville is powered by 1,021 working residents, spread across a range of industries and roles. 60.1% of the working population are employed in professional or administrative positions, while 39.9% are in hands-on or service-based jobs. Also, 16.6% run their own businesses, 42.8% are employed by private companies, and 34.3% work in the public sector.

Workforce demographics

Working population
1,021
7.5% year-over-year change
White collar
614
Blue collar
407
Value Percent YoY change
White collar 614 60.1% -4.1%
Blue collar 407 39.9% 31.3%
Employer type
Self employees
16.6%
Private companies
42.8%
Governmental workers
34.3%
Not for profit companies
6.4%
Value Percent YoY change
Self employees 169 16.6% 125.3%
Private companies 437 42.8% -3.5%
Governmental workers 350 34.3% -3.0%
Not for profit companies 65 6.4% 6.6%
Unemployment rate
2.4%
-44.4% year-over-year change

Available workforce

The unemployment rate in Janesville stands at 2.4%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Janesville

How people get around in Janesville

Commuting methods vary: 89.7% of residents travel by personal vehicle and 0.8% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 916 89.7% 6.0%
Motorcycle 13 1.3% N/A
Walk 8 0.8% -55.6%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Janesville by zipcode?

Zipcode Population Number of households Median income Average income
96114 2,959 1,151 $79,688 $90,036

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FAQs about Janesville demographics 

What is the total population of Janesville?

Janesville has a total population of 2,399 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -2.0% compared to a year ago.

What is the gender ratio in Janesville?

The gender ratio in Janesville is as follows:
  • 54% males (1,296 residents)
  • 46% females (1,103 residents)

What is the median age in Janesville?

The median age in Janesville is 52.4.

What is the age distribution of the population in Janesville?

The age distribution in Janesville is as follows:
  • Under 15: 13.6% (325 residents)
  • Ages 15-24: 8.9% (214 residents)
  • Ages 25-44: 14.9% (358 residents)
  • Ages 45-64: 39.6% (951 residents)
  • Over 65: 23% (551 residents)

What is the racial and ethnic makeup of Janesville?

The racial and ethnic makeup of Janesville is as follows:
  • White: 78.4% (1,880 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 2.7% (64 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 8.8% (211 residents)
  • Other: 10.2% (244 residents)

What percentage of the population in Janesville are U.S.-born citizens?

U.S.-born citizens represent 90% of the population in Janesville.

How many housing units are there in Janesville?

There are 1,122 housing units in Janesville, reflecting a -6.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Janesville and what is the average household size?

Janesville has a total of 942 households, with an average of 3 people in each.

What is the median household income in Janesville?

Janesville has a median household income of $78,466, representing a +10.6% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Janesville?

The employment rate is 97.6% in Janesville, with a workforce of 1,021 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 60.1% (614 residents)
  • Blue-collar workers: 39.9% (407 residents)

Places of employment:
  • Self-employed: 16.6% (169 residents)
  • Private companies: 42.8% (437 residents)
  • Governmental workers: 34.3% (350 residents)
  • Not-for-profit companies: 6.4% (65 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025