Janesville, WI ZIP Codes
3 ZIP codes serve Janesville, Wisconsin: 53546, 53545 and 53548. Together they are home to 74,486 residents in 31,785 households. Median household income ranges from $73,889 in 53545 to $76,869 in 53548.
Janesville city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 66,030 |
| Households | 28,326 |
| Median household income | $73,446 |
| Median home value | $223,400 |
| Median age | 40.7 |
| Median rent | $1,054 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 74,486 |
| Households (sum of ZIP codes) | 31,785 |
| Median household income, range across ZIP codes | $73,889 (53545) to $76,869 (53548) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $75,442 |
| Homeowners | 69.9% |
| Households with kids under 18 | 26.5% |
| Moved in the past year | 8.8% |
| Carrier routes in EDDM2GO's route library | 37 routes, 21,566 homes (2 of 3 ZIP codes) |
Top facts
- Highest median household income in Janesville: 53548 ($76,869)
- Most residents: 53546 (29,867 people)
- Highest homeownership: 53546 (74.5% own their home)
- Most households with kids: 53546 (28.1% of households)
- Most new movers: 53545 (10.4% moved in last year)
- Youngest median age: 53545 (40.8 years)
- Highest median home value: 53546 ($239,400)
Every ZIP code in Janesville
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 53546 | Janesville | 29,867 | 12,314 | $75,825 | $239,400 | 74.5% | 28.1% | 8.1% | 22 | 14,036 | 20% of its land; mailing city |
| 53545 | Janesville | 24,703 | 10,909 | $73,889 | $220,700 | 64.7% | 25.6% | 10.4% | — | — | 42% of its land; mailing city |
| 53548 | Janesville | 19,916 | 8,562 | $76,869 | $234,900 | 69.9% | 25.4% | 7.8% | 15 | 8,550 | 10% of its land; mailing city |
A ZIP code is listed for Janesville when at least 10% of its land lies inside Janesville city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Janesville. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Janesville.
Counties
- Rock County — 15 ZIP codes
Price a mailing to Janesville ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Janesville, WI?
- 53546, 53545 and 53548. A ZIP code is listed for Janesville when at least 10% of its land lies inside Janesville city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Janesville.
- What is the population of Janesville, WI?
- The Census Bureau counts 66,030 residents inside Janesville city limits (ACS 2020–2024). The 3 ZIP codes that serve Janesville hold 74,486 residents in all.
- What is the median household income in Janesville, WI?
- $73,446 inside Janesville city limits, per the Census Bureau. Across its ZIP codes the medians run from $73,889 to $76,869.
- Which Janesville ZIP code has the highest median household income?
- 53548, at $76,869, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Janesville, WI?
- For the 2 of 3 ZIP codes in EDDM2GO's stored route library: 37 carrier routes reaching 21,566 residential and 1,014 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.