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Janesville Town, WI
Key Indicators
A quick look at key numbers
Population
3,678
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
51
years ∙ half population younger than 51, half older
Diversity Index
21.2%
chance two random people differ in race and ethnicity
Nativity
1.8%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Janesville Town is a town in Rock County, Wisconsin, United States.
Co-ordinates
DEC42.719129° N, 89.082569° W
DMS42° 43′ 08.86″ N, 89° 04′ 57.25″ W
Population Density & area
137.2/sq mi
(53/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
50%
male
Male
50%
Female
50%
males per 100 females
Janesville Town
99.9
Rock County
99.1
Wisconsin
100.3
Nativity
1.8%
foreign-born population
% Foreign-born
Janesville Town
1.8%
Rock County
4.6%
Wisconsin
5.2%
Age Distribution
How the population is spread across age groups
Median Age
51
years ∙ half population younger than 51, half older
Dependency ratio
75.3
dependents per 100 working-age adults
Janesville Town
75.3
Rock County
67.2
Wisconsin
66.4
AGE DISTRIBUTION
Distribution of age group
Median age
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 17.6% | 22.4% | 21.4% |
| Working age (18-64) | 57.1% | 59.8% | 60.1% |
| Senior (65+) | 25.3% | 17.8% | 18.5% |
| Dependency ratio | |||
| Total dependency ratio | 75.3 | 67.2 | 66.4 |
| Child dependency ratio | 30.9 | 37.4 | 35.6 |
| Old-age dependency ratio | 44.4 | 29.8 | 30.8 |
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares
Race & Ethnicity
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.
Diversity Index
21.2%
chance two random people differ in race and ethnicity
Janesville Town
21.2%
Rock County
35.2%
Wisconsin
37%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.
RACIAL & ETHNIC COMPOSITION
Race & Ethnicity
Percentage of Janesville Town population
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Hispanic or Latino | 0.1% | 10.1% | 8% |
| Mexican | 0% | 8.3% | 5.4% |
| Puerto Rican | 0% | 0.5% | 1.1% |
| Cuban | 0.1% | 0% | 0.1% |
| Other Hispanic / Latino | 0% | 1.3% | 1.3% |
| Not Hispanic or Latino | 99.9% | 89.9% | 92% |
| One race | 90.9% | 85.7% | 88.3% |
| White | 88.3% | 79.6% | 78.6% |
| Black or African American | 1.3% | 4.6% | 5.9% |
| American Indian and Alaska Native | 0% | 0% | 0.5% |
| Asian | 1.3% | 1.1% | 2.9% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0% |
| Some Other Race | 0% | 0.3% | 0.3% |
| Two or more races (Multiracial) | 9% | 4.2% | 3.7% |
Household & Families Composition
Household size, type, and family structure
Household structure
80.6%
family
Family
80.6%
Non family
19.4%
% family households
Janesville Town
80.6%
Rock County
63%
Wisconsin
60.5%
Average household size
2.37
persons per household
Household & Family COMPOSITION
Households
Percentage of Janesville Town population
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Total households | 1,548 | 67,201 | 2,479,480 |
| Average houshold size | 2.37 | 2.41 | 2.33 |
| Family households | 1,248 | 42,366 | 1,500,296 |
| Average family size | 2.68 | 3 | 2.95 |
| Married couple family | 1,135 | 31,700 | 1,161,326 |
| Other families | 113 | 10,666 | 338,970 |
| Male householder | 39 | 3,665 | 112,650 |
| Female householder | 74 | 7,001 | 226,320 |
| Non-family households | 300 | 24,835 | 979,184 |
| One-person households | 300 | 20,416 | 781,452 |
| Male householder | 137 | 9,538 | 373,428 |
| Senior (65+) living alone | 94 | 2,979 | 109,743 |
| Female householder | 163 | 10,878 | 408,024 |
| Senior (65+) living alone | 163 | 6,131 | 210,915 |
| Other living arrangements | 0 | 4,419 | 197,732 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
1,652
housing units
Janesville Town
1,652
Rock County
71,109
Wisconsin
2,778,572
Occupancy status
93.7%
occupied
Occupied
93.7%
Vacant
6.3%
vacancy rate
Janesville Town
6.3%
Rock County
5.5%
Wisconsin
10.8%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
100%
Single family houses
Median Year Built
1984
Half of houses were built before 1984, and half after.
Note: Median year built reflects occupied units only; distribution includes all units.
Housing Characteristics
Units, rooms & bedrooms
Physical characteristics of housing units
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 7 | 5.9 | 5.6 |
| 1–3 rooms | 0% | 8.4% | 13.2% |
| 4–6 rooms | 36.4% | 53.6% | 52% |
| 7+ rooms | 63.5% | 38.1% | 34.9% |
| Bedrooms | |||
| No bedroom / studio | 0% | 1.5% | 2.1% |
| 1 bedroom | 0% | 7.7% | 10% |
| 2 bedrooms | 16.5% | 27.5% | 27.8% |
| 3 bedrooms | 60.3% | 45.5% | 40% |
| 4+ bedrooms | 23.2% | 17.9% | 20.1% |
| At a glance | |||
| Median year built | 1984 | 1970 | 1975 |
| Total housing units | 1,652 | 71,109 | 2,778,572 |
Occupancy Profile
Who is inside and how they use it
Homeownership
97.9%
owners
Renter-occupied
2.1%
Owner-occupied
97.9%
homeownership rate
Janesville Town
97.9%
Rock County
71.2%
Wisconsin
67.8%
Average household size
2.34
Owner-occupied
3.66
Renter-occupied
owner-occupied average size
Janesville Town
2.34
Rock County
2.5
Wisconsin
2.49
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Total occupied units | 1,548 | 67,201 | 2,479,480 |
| Year moved in | |||
| 2020 or later | 5.8% | 19.7% | 23.1% |
| 2010 to 2019 | 29.1% | 38.8% | 38% |
| 2000 to 2009 | 25.1% | 18.2% | 17.1% |
| 1999 or earlier | 39.9% | 23.3% | 21.8% |
| Occupants per room | |||
| 1.00 or fewer | 100% | 98.6% | 98.3% |
| 1.01 to 1.50 | 0% | 1.2% | 1.2% |
| 1.51 or more | 0% | 0.2% | 0.5% |
| Vehicles availability | |||
| No vehicles | 2.6% | 6% | 6.4% |
| 1 vehicle | 7.7% | 30.4% | 33% |
| 2 vehicles | 50.1% | 39.9% | 39.5% |
| 3 or more vehicles | 39.7% | 23.7% | 21.1% |
| House heating fuel used | |||
| Gas | 86.6% | 78.4% | 76.6% |
| Electricity | 5.2% | 17.9% | 17.8% |
| Solar | 0% | 0.1% | 0.1% |
| Fuel oil, kerosene etc | 3.7% | 1.1% | 1.4% |
| All other fuels | 4.4% | 2% | 3.5% |
| No fuel used | 0% | 0.5% | 0.6% |
| Selected characteristics | |||
| Lacking complete plumbing | 0% | 0.4% | 0.4% |
| Lacking complete kitchen | 0% | 0.9% | 0.8% |
| No telephone service available | 0% | 0.9% | 0.8% |
Housing Value
What owner-occupied units are worth
Median home value
$369,000
owner-occupied units
Housing Cost Burden
24.9%
of homeowners with a mortgage are cost-burdened
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.
Financial characteristics
Property value and housing costs
Tenure, crowding, and utilities
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Property value | |||
| Median Value | $369,000 | $231,600 | $266,500 |
| Under $100,000 | 5.7% | 9.9% | 9.1% |
| $100,000 - $200,000 | 7.7% | 28.5% | 23% |
| $200,000 - $300,000 | 15.4% | 32.2% | 25.5% |
| $300,000 - $500,000 | 45.5% | 23.2% | 29.4% |
| $500,000 - $1,000,000 | 22.8% | 5.7% | 11.4% |
| $1,000,000 and more | 2.9% | 0.6% | 1.7% |
| Owner-occupied households | |||
| With a mortgage | 60.2% | 62.5% | 61.1% |
| Without a mortgage | 39.8% | 37.5% | 38.9% |
| Median monthly owner costs | |||
| With a mortgage | $1,842 | $1,538 | $1,689 |
| Without a mortgage | $681 | $632 | $659 |
| Gross rent | |||
| Median rent | $— | $1,037 | $1,087 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
42.5%
of adults 25+ with a bachelor's degree or higher
Janesville Town
42.5%
Rock County
25.8%
Wisconsin
33.4%
Adults without a high school diploma
2.9%
of adults (25+) without a high school diploma
Janesville Town
2.9%
Rock County
7.3%
Wisconsin
6.4%
School Enrollment
Who is enrolled in school and at what level
School enrollment
614
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
35%
of 18-24-year-olds in college or graduate school
Enrollment & school type
Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Total enrolled (age 3+) | 614 | 37,552 | 1,356,381 |
| Nursery / preschool | 5.2% | 6.7% | 5.3% |
| K–12 | 78.2% | 71.3% | 69.3% |
| Kindergarten | 8.5% | 5.5% | 5.5% |
| Elementary: Grades 1–4 | 12.1% | 21.8% | 20.2% |
| Elementary: Grades 5–8 | 24.3% | 19.8% | 21.3% |
| High School: Grades 9–12 | 33.4% | 24.2% | 22.3% |
| College or graduate school | 16.6% | 22% | 25.3% |
| College, undergraduate | 16.6% | 18.6% | 20.7% |
| Graduate, professional school | 0% | 3.4% | 4.7% |
| College-going rate · 18-24 yr olds | 35% | 35% | 39.8% |
| School type | |||
| Public school | 89.4% | 87% | 82.4% |
| Private school | 10.6% | 13% | 17.6% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
2,789
population 25 years and over
Attainment by gender
Male vs Female
Adults (25+) · Share within each education level
Educational Attainment Overview
Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Population (25+) | 2,789 | 113,735 | 4,099,973 |
| Less than 9th grade | 0.7% | 2.4% | 2.3% |
| 9th–12th, no diploma | 2.2% | 4.9% | 4.1% |
| High school diploma or GED | 26.1% | 33.3% | 29.4% |
| Some college, no degree | 16.8% | 21.6% | 19.5% |
| Associate's degree | 11.8% | 11.9% | 11.3% |
| Bachelor's degree or higher | 42.5% | 25.8% | 33.4% |
| Bachelor's degree | 24.9% | 17.7% | 22% |
| Graduate or professional | 17.6% | 8.1% | 11.4% |
| High School or higher | 97.1% | 92.6% | 93.6% |
Earnings by education level
percentage as applicable
Median Earnings
$67,050
Median earnings for adults 25+, by level
Poverty Rate
0%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| Janesville Town | Rock County | Wisconsin | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $67,050 | $50,055 | $53,060 |
| Less than high school graduate | $— | $36,267 | $36,585 |
| High school graduate (includes equivalency) | $51,250 | $43,915 | $42,367 |
| Some college or associate's degree | $70,587 | $49,132 | $49,438 |
| Bachelor's degree | $79,107 | $61,332 | $66,239 |
| Graduate or professional degree | $72,438 | $74,885 | $79,916 |
| Poverty rates | |||
| Less than high school graduate | 2.5% | 20.2% | 22.6% |
| High school graduate (includes equivalency) | 8.2% | 10.2% | 12.2% |
| Some college or associate's degree | 1.8% | 6.6% | 7.9% |
| Bachelor's degree or higher | 0% | 2.9% | 3.7% |
About Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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