US ZIP Code
53545

Janesville, WI

Rock County  ·  Wisconsin

● Active
👥 23,937 Population ↑ 3% since 2019
💰 $70,730 Median HH Income
≈ Avg ↑ 26% since 2019
🎂 41.1 Median Age ↓ 3% since 2019
🏠 $204,000 Median Home Value
▼ 27% below avg ↑ 45% since 2019
🎓 40.9% College Grads
≈ Avg
📊 4.5% Unemployment
≈ Avg ↑ 17% since 2019
ZIP Code Details
ZIP Code53545
CityJanesville
StateWisconsin (WI)
CountyRock County
Area Code353/608
Elevation892 ft
Latitude42.738735
Longitude-89.040224
TimezoneChicago (DST)
FIPS55105
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.8% (11,923) Female 50.2% (12,014) ♀

Race & Ethnicity

White: 86%Hispanic: 3.5%Black: 4.7%Asian: 1.8%Other: 4.1%Race
White86.0%
Hispanic3.5%
Black4.7%
Asian1.8%
Other4.1%

Age Breakdown

Under 5
5%
5–17
15%
18–24
9%
25–44
27%
45–64
25%
65+
8%

Key Indicators

Median Age41.1 yrs ↓ 3% since 2019
Avg Household Size2.18
Below Poverty9.6% ≈ Avg
College Grads40.9% ≈ Avg
Unemployment4.5% ≈ Avg
No HS Diploma102 (0.6%)
HS Graduate5,353 (32.9%)
Some College1,827 (11.2%)
Associates2,338 (14.4%)
Bachelors1,862 (11.4%)
Graduate Degree4,783 (29.4%)

Education

No HS: 0.6%HS Grad: 32.9%Some College: 11.2%Associates: 14.4%Bachelors: 11.4%Graduate: 29.4%Edu
No HS0.6%
HS Grad32.9%
Some College11.2%
Associates14.4%
Bachelors11.4%
Graduate29.4%
Housing & Income

Housing Tenure

Owner: 64.8%Renter: 35.2%Tenure
Owner64.8%
Renter35.2%

Home Value Distribution

Under $50k
2%
$50k–100k
4%
$100k–150k
14%
$150k–200k
29%
$200k–300k
33%
$300k–500k
13%
Over $500k
5%

Financials

Median HH Income$70,730 ≈ Avg ↑ 26% since 2019
Median Home Value$204,000 ▼ 27% below avg ↑ 45% since 2019
Home/Income Ratio2.9x (nat avg ~3.5x)
Median Rent$1,006/mo ↑ 18% since 2019
Total Units11,170
Vacant Units402
Avg HH Size2.18

Income Distribution

Under $25k
15%
$25k–50k
16%
$50k–75k
21%
$75k–100k
19%
$100k–150k
17%
$150k–200k
8%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
88%
Public Transit
1%
Walked
2%
Work From Home
9%

Commute Time

Under 15 min
43%
15–30 min
30%
30–45 min
14%
Over 45 min
13%
Housing Stock

Year Built

Before 1940
4%
1940s–1950s
22%
1960s–1970s
11%
1980s–1990s
5%
2000+
58%

Summary

Total Units11,170
Vacant402
Owner Occupied64.8%
Renter Occupied35.2%
Avg HH Size2.18
Frequently Asked Questions
ZIP code 53545 is in Janesville, WI, in Rock County.
ZIP code 53545 is located in Wisconsin (WI).
ZIP code 53545 is in Rock County, WI.
ZIP 53545 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 53545 is 23,937 people (ACS 2023).
The median household income in ZIP code 53545 is $70,730 (ACS 2023).
The median home value in ZIP 53545 is $204,000 (ACS 2023).
About ZIP Code 53545

ZIP code 53545 is located in Janesville, Wisconsin, within Rock County. With a population of 23,937, this is a moderately populated ZIP code with a middle-aged community — the median age is 41.1 years. Economically, 53545 is a solidly middle-class ZIP code: the median household income of $70,730 is near the national average.

Real estate in ZIP code 53545 represents an affordable housing market. The median home value of $204,000 is below the national average. Renters can expect to pay around $1,006 per month in median rent. Homeownership is strong here — 64.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 45% since 2019.

The population of 53545 is primarily White (85.98%). Residents are well-educated — 40.9% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 9.6%. Household income has grown by 26% since 2019.

The unemployment rate in 53545 stands at 4.5%, which is near the national average. As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 53545 in Janesville, WI is characterized as solidly middle-class, well-educated, a middle-aged community, and predominantly owner-occupied. With 23,937 residents, a median household income of $70,730, and a median home value of $204,000, it offers a clear picture of life in this part of Wisconsin.