53546 ZIP Code, Janesville, WI

53546 is a ZIP code in Janesville, Wisconsin in Rock County. It covers 81 square miles of land. The closest ZIP codes are 53505, 53501 and 53545. 29,867 people live here in 12,314 households, more than in 9 of every 10 Wisconsin ZIP codes. With about 368 people per square mile it is lightly settled, and most homes are owner-occupied (75%). Median household income is $75,825, close to the Wisconsin median of $77,485.

Quick facts

Key figures

MeasureValue
Residents29,867
Households12,314
Median household income$75,825
Income per person$38,909
Median age41
Homeowners74.5%
Median home value$239,400
Median rent$1,043
Bachelor's degree or higher26.3%
Average commute (minutes)21.9
Households with kids under 1828.1%
Moved in the past year8.1%
Below the poverty line7.2%
Broadband internet91.5%
Speak a non-English language at home7.0%

Household income

% of householdsValue
<$10K2.5%
$10–15K3.1%
$15–25K6.4%
$25–35K7.7%
$35–50K11.5%
$50–75K18.2%
$75–100K14.6%
$100–150K20.3%
$150–200K9.7%
$200K+5.9%

Age

% of all residentsValue
<1011.9%
10–1911.6%
20–246.0%
25–3413.3%
35–4412.5%
45–5413.4%
55–6413.4%
65–7410.0%
75+7.8%

Tenure

% of housing unitsValue
Owned, with mortgage43.2%
Owned outright28.5%
Rented24.3%
Vacant4.0%

Type of building

% of housing unitsValue
Detached house67.0%
Townhome8.2%
2–4 units5.2%
5–19 units10.9%
20+ units3.5%
Mobile / other5.2%

Businesses in 53546

600 business establishments with 15,784 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

53546 has 22 USPS carrier routes with 13,419 residential and 609 business mailboxes. Open the EDDM route map.

Carrier routes in 53546

53546 has 22 USPS carrier routes (14 city (C), 8 rural (R)) with 13,419 residential and 609 business mailboxes. Routes range from 222 homes (C047) to 960 homes (C028); the median route has 600 homes. The Census counted 12,314 households in 53546 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4994
500–74913
750–9994
1,000–1,4990
1,500+0

Best routes in 53546 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R003 — USPS business mailboxes 117, 393 homes
  2. Route R006 — USPS business mailboxes 78, 624 homes
  3. Route C028 — USPS business mailboxes 62, 960 homes
  4. Route C017 — USPS business mailboxes 60, 462 homes
  5. Route R001 — USPS business mailboxes 55, 463 homes

Select these 5 routes on the route map

Every carrier route in 53546

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C015City5646$77,839———
C017City46260$61,416———
C019City67040$51,020———
C025City7277$77,839———
C027City6774$76,721———
C028City96062$32,452———
C033City6181$77,401———
C035City50310$76,721———
C037City5773$79,388———
C041City48915$58,234———
C042City5810$77,401———
C046City57440$58,101———
C047City22219$76,721———
C048City7982$32,452———
R001Rural46355$71,304———
R002Rural6563$133,038———
R003Rural393117$71,304———
R006Rural62478$111,434———
R007Rural82445$77,839———
R011Rural7436$63,146———
R012Rural76135$32,452———
R017Rural5331$92,762———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 53546 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 53546

Mail every home in 53546

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 53546, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 53546 in?
53546 is a Janesville, WI mailing address. By land area, 20% lies inside Janesville; the rest is outside any Census-defined city or community.
What county is 53546 in?
53546 is in Rock County.
What is the population of 53546?
About 29,867 people (±1,294), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 31,190.
What is the median household income in 53546?
$75,825 (±$6,610), compared with $77,485 for Wisconsin as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 53546?
22 USPS carrier routes with 13,419 residential and 609 business mailboxes (14,036 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 53546?
The closest, measured center to center: 53505 (6.5 mi), 53501 (7.3 mi), 53545 (7.6 mi, Janesville), 53563 (8.9 mi, Milton), 53525 (9.1 mi, Clinton) and 53548 (9.6 mi, Janesville).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.