PlainZIP

Janesville, WI · standard

ZIP Code 53548

Rock County, Wisconsin - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

18,558
100/sq mi
$76,869
Median income
$234,900
Median home value
26.4%
Bachelor's or higher

The verdict

Janesville pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 42%
household income, US ZIPs
Top 46%
home value, US ZIPs
100
people per sq mi
70%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 53548 against every reporting US ZIP.

ZIP code 53548 is a mid-sized community (a standard USPS delivery area) in Janesville, Rock County, Wisconsin, home to 18,558 residents across 185.0 square miles, a density of 100 people per square mile, in the Chicago time zone.

ZIP 53548 lands in the middle-income range, with a median household income of $76,869 (2% below the Wisconsin average), while per-capita income is $38,090. Poverty here runs at 10.6%, with unemployment measured at 5.0%. Housing costs here run $234,900 for a typical home value (6% below the state average), with rent averaging $1,045 a month; 69.9% of homes are owner-occupied.

Educational attainment sits below the national norm: 26.4% of adults hold a bachelor's degree or higher, the median age is 43.3, and the average commute is 23 minutes. To put 53548 in local context, 6 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Rock County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 53548

Top 5 sectors by establishment count in Janesville, WI

Which industries have the most business establishments in ZIP 53548.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 53548, Janesville, WI · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

18,558

Population

185.0

Area (sq mi)

100

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 53548?

43.3

Median Age

50.3%

Male

49.7%

Female

4.5%

Foreign-Born

White 84.9%
African American 3.9%
Asian 1.8%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.3%
Hispanic or Latino 8.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$76,869

Median Household Income

-2% vs state

$38,090

Per Capita Income

10.6%

Poverty Rate

5.0%

Unemployment Rate

22.5 min

Mean Commute Time

How ZIP 53548 ranks nationally

Janesville, WI household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$76,869 Top 42% higher than 58% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 61.9%
Bachelor's Degree or Higher 26.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

9,038

Total Housing Units

8,562

Occupied Units

476

Vacant Units

2.31

Avg Household Size

Occupancy Type

Owner 69.9%
Renter 30.1%

$234,900

Median Home Value

-6% vs state

$1,045

Median Rent

1967

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+6.8%

YoY Change (2024)

226

HPI Index (2000 = 100)

+126%

Total Change Since 2000

Home values in ZIP 53548 have increased 6.8% over the past year (2024). Since 2000, this ZIP has seen +126% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.8% 147
2021 +13.7% 167
2022 +12.3% 187
2023 +13.0% 212
2024 +6.8% 226

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 294 business establishments in ZIP 53548, employing approximately 2,784 people with a combined annual payroll of $144,334,000.

294

Businesses

2,784

Employees

$144.3M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 36 12.2%
Retail trade 35 11.9%
Construction 34 11.6%
Other services (except public administration) 33 11.2%
Professional, scientific, and technical services 28 9.5%
Accommodation and food services 26 8.8%
Transportation and warehousing 16 5.4%
Administrative and support and waste management and remediation services 16 5.4%
Real estate and rental and leasing 15 5.1%
Finance and insurance 14 4.8%
Manufacturing 12 4.1%
Wholesale trade 11 3.7%
Arts, entertainment, and recreation 11 3.7%
Educational services 4 1.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 53548 vs 53537 →

ZIP 53548 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 53548 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 53548 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 53548 ranks #2 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
53537 Footville, WI 781 4.2 mi
53545 Janesville, WI 23,117 5.7 mi
53501 Afton, WI 23 6.4 mi
53576 Orfordville, WI 2,319 6.9 mi
53511 Beloit, WI 48,929 9.8 mi
53536 Evansville, WI 8,503 8.7 mi

More ZIP Codes in Rock County

53511 standard
Beloit, WI
Pop: 48,929
53546 standard
Janesville, WI
Pop: 30,648
53545 standard
Janesville, WI
Pop: 23,117
53534 standard
Edgerton, WI
Pop: 11,512
53563 standard
Milton, WI
Pop: 10,728
53536 standard
Evansville, WI
Pop: 8,503

Related Areas

Rock County Janesville, WI Wisconsin

Frequently Asked Questions

What county is ZIP code 53548 in? ▼
ZIP code 53548 (Janesville) is located in Rock County, Wisconsin. Rock County contains multiple ZIP codes, see the full list at /counties/rock-wi.
What is the population of ZIP code 53548? ▼
ZIP code 53548 in Janesville, WI has a population of 18,558 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 53548? ▼
The median household income in ZIP 53548 is $76,869, which is 1% above the national average of $76,288.
What is the average home value in ZIP 53548? ▼
The median home value in ZIP 53548 is $234,900, which is 16% below the national average of $278,155.
What is the demographic makeup of ZIP 53548? ▼
The largest racial group in ZIP 53548 is White at 84.9%. Hispanic or Latino residents make up 8.4% of the population.
How many businesses are in ZIP code 53548? ▼
ZIP code 53548 has 294 business establishments employing approximately 2,784 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 53548? ▼
The top industries by establishment count in ZIP 53548 are: Health care and social assistance (36), Retail trade (35), Construction (34). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 53548? ▼
According to the FHFA House Price Index, home values in ZIP 53548 increased by 6.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 126%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 53548? ▼
In ZIP code 53548, 61.9% of residents aged 25+ have a high school diploma or higher, and 26.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 53548? ▼
The mean commute time for workers in ZIP code 53548 is 22.5 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 53548? ▼
In ZIP code 53548, approximately 69.9% of occupied housing units are owner-occupied and 30.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 53548? ▼
The poverty rate in ZIP code 53548 is 10.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.