What city is 53548 in?

53548 is a Janesville, WI mailing address. By land area, 10% lies inside Janesville; the rest is outside any Census-defined city or community.

What is the population of 53548?

About 19,916 people (±1,280), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,233.

What is the median household income in 53548?

$76,869 (±$4,809), 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 53548?

15 USPS carrier routes with 8,147 residential and 405 business mailboxes (8,550 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 53548?

The closest, measured center to center: 53537 (4.2 mi, Footville), 53545 (5.7 mi, Janesville), 53501 (6.6 mi), 53576 (6.8 mi, Orfordville), 53536 (8.5 mi, Evansville) and 53546 (9.6 mi, Janesville).

53548 ZIP Code, Janesville, WI

53548 is a ZIP code in Janesville, Wisconsin in Rock County. It covers 75 square miles of land. The closest ZIP codes are 53537, 53545 and 53501. 19,916 people live here in 8,562 households. With about 266 people per square mile it is lightly settled, and owners and renters are mixed (70% own). Median household income is $76,869, close to the Wisconsin median of $77,485.

Quick facts

Mailing city: Janesville, WI
County: Rock County
Land area: 75 sq mi
Population: 19,916
Median household income: $76,869
Carrier routes: 15 (8,147 homes)

Key figures

Measure	Value
Residents	19,916
Households	8,562
Median household income	$76,869
Income per person	$38,090
Median age	43.3
Homeowners	69.9%
Median home value	$234,900
Median rent	$1,045
Bachelor's degree or higher	26.4%
Average commute (minutes)	22.5
Households with kids under 18	25.4%
Moved in the past year	7.8%
Below the poverty line	10.6%
Broadband internet	89.0%
Speak a non-English language at home	7.2%

Household income

% of households	Value
<$10K	4.2%
$10–15K	2.5%
$15–25K	6.6%
$25–35K	7.0%
$35–50K	12.0%
$50–75K	15.8%
$75–100K	21.5%
$100–150K	16.3%
$150–200K	9.3%
$200K+	4.6%

Age

% of all residents	Value
<10	11.0%
10–19	9.7%
20–24	7.5%
25–34	10.3%
35–44	13.3%
45–54	14.1%
55–64	14.3%
65–74	13.4%
75+	6.4%

Tenure

% of housing units	Value
Owned, with mortgage	45.9%
Owned outright	20.9%
Rented	28.0%
Vacant	5.2%

Type of building

% of housing units	Value
Detached house	77.6%
Townhome	3.1%
2–4 units	10.3%
5–19 units	2.9%
20+ units	3.6%
Mobile / other	2.6%

Businesses in 53548

294 business establishments with 2,784 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 36
Retail Trade: 35
Construction: 34
Other Services (except Public Administration): 33
Professional, Scientific, and Technical Services: 28
Accommodation and Food Services: 26
Transportation and Warehousing: 16
Administrative and Support and Waste Management and Remediation Services: 16

EDDM carrier routes

53548 has 15 USPS carrier routes with 8,147 residential and 405 business mailboxes. Open the EDDM route map.

Carrier routes in 53548

53548 has 15 USPS carrier routes (10 city (C), 5 rural (R)) with 8,147 residential and 405 business mailboxes. Routes range from 259 homes (R018) to 738 homes (R010); the median route has 554 homes. The Census counted 8,562 households in 53548 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	3
500–749	12
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 53548 for…

Most businesses

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

Route C013 — USPS business mailboxes 157, 627 homes
Route C007 — USPS business mailboxes 101, 447 homes
Route R005 — USPS business mailboxes 22, 641 homes
Route C029 — USPS business mailboxes 20, 625 homes
Route C043 — USPS business mailboxes 17, 538 homes

Select these 5 routes on the route map

Every carrier route in 53548

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	553	6	$79,256	—	—	—
C007	City	447	101	$38,101	—	—	—
C008	City	554	12	$79,256	—	—	—
C009	City	275	13	$43,851	—	—	—
C011	City	553	9	$46,796	—	—	—
C013	City	627	157	$43,851	—	—	—
C021	City	651	14	$36,202	—	—	—
C029	City	625	20	$120,799	—	—	—
C031	City	600	0	$59,425	—	—	—
C043	City	538	17	$79,256	—	—	—
R004	Rural	528	7	$98,461	—	—	—
R005	Rural	641	22	$120,799	—	—	—
R009	Rural	558	10	$91,570	—	—	—
R010	Rural	738	9	$73,561	—	—	—
R018	Rural	259	8	$120,799	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 53548 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

53537 — Footville village, WI (4.2 mi)
53545 — Janesville city, WI (5.7 mi)
53501 (6.6 mi)
53576 — Orfordville village, WI (6.8 mi)
53536 — Evansville city, WI (8.5 mi)
53546 — Janesville city, WI (9.6 mi)
53511 — Beloit city, WI (10 mi)
53563 — Milton city, WI (11.9 mi)

Areas that include 53548

Where it ranks

Mail every home in 53548

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) 53548, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 53548 in?: 53548 is a Janesville, WI mailing address. By land area, 10% lies inside Janesville; the rest is outside any Census-defined city or community.
What county is 53548 in?: 53548 is in Rock County.
What is the population of 53548?: About 19,916 people (±1,280), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,233.
What is the median household income in 53548?: $76,869 (±$4,809), 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 53548?: 15 USPS carrier routes with 8,147 residential and 405 business mailboxes (8,550 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 53548?: The closest, measured center to center: 53537 (4.2 mi, Footville), 53545 (5.7 mi, Janesville), 53501 (6.6 mi), 53576 (6.8 mi, Orfordville), 53536 (8.5 mi, Evansville) and 53546 (9.6 mi, Janesville).

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