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Janesville in short
- 28,326
- households in Janesville
- 67.3%
- owner-occupied (county 71.2%)
- 67.8%
- detached houses (county 74.4%)
- 1972
- median year built (county 1970)
The local numbers
Who keeps the lawns in Janesville
Of the 28,326 households in Janesville, 67.3% own the home they live in (Rock County: 71.2%). Owners are the ones who pick between a push mower, a riding mower and a weekly service. It ranks 4th of 6 here.
67.8% of Janesville's 29,330 housing units are single-family detached houses, fewer than the county's 74.4%. More people live in duplexes and apartments, where a landlord or association hires the mowing for the whole row. 15.5% are in buildings of five or more units, the shared lawns a commercial mowing route handles.
Janesville's median year built is 1972 (county 1970), and 14.2% predate 1940. Newer subdivisions mean open lawns on thinner topsoil, where aeration and overseeding pay off sooner than on old established turf. That is the lowest share of pre-1940 homes of the 6 communities on this site.
Janesville housing and households vs Rock County
| Measure | Janesville | Rock County |
|---|---|---|
| Residents | 66,030 | 164,350 |
| Housing units | 29,330 | 71,109 |
| Occupied (households) | 28,326 | 67,201 |
| Owner-occupied households | 19,069 (67.3%) | 47,819 (71.2%) |
| Renter households | 9,257 (32.7%) | 19,382 (28.8%) |
| Single-family detached | 67.8% | 74.4% |
| Median year built | 1972 | 1970 |
| Built before 1940 | 14.2% | 19.2% |
| Built 2000 or later | 15.2% | 16.3% |
| Mobile homes | 2.1% | 2.6% |
| In buildings of 5+ units | 15.5% | 11.7% |
Source: U.S. Census Bureau, ACS 2024 5-year (2020-2024), tables B01003, B25003, B25024, B25034 and B25035.
Local rules
Yard waste and leaf rules in Janesville
- Yard waste and brush
- Bagged yard waste and bundled brush go out with the regular garbage only two weeks a year: May 4 to 8 and November 30 to December 4, 2026. Paper bags or reusable containers up to 35 gallons, each under 50 pounds; plastic bags have not been taken since fall 2023. Brush bundles at most 4 feet long, 12 inches across and 50 pounds, at the curb by 7 a.m. source
- Fall leaves
- Loose leaf collection runs November 9 to 20, 2026, by neighborhood map. Leaves may not go in the street gutter before October 1 or after the crew has passed; move them from the terrace to the gutter 1 to 2 days before your date, keep cars off the street that day, and keep storm inlets clear. Crews pass each street once. source
- Drop-off
- The Compost Site and Clean Fill Facility on Black Bridge Road takes grass, leaves and garden debris free from Janesville residents only. Brush, branches and stumps cost $6 a cubic yard for residents and $8 for others. Open April to October weekdays 8 to 7 and Saturday 8 to 1, shorter hours in November, closed early December to the end of March. source
- Also worth knowing
- Ordinance 22-204 caps grass and weeds at 12 inches. After an inspector confirms a complaint the owner gets a door hanger or letter, the property is re-inspected 7 days later, and if it is still tall the city has it cut and bills the owner (ordinance 22-209). source
About Janesville. Janesville is the county seat of Rock County and sits on the Rock River; its 2020 census population was 65,615. Wikipedia
ZIP codes. 53546 (47% of its land), 53545 (28% of its land), 53548 (22% of its land), 53563 (4% of its land). Census 2020
Janesville lawn care services
Nearby, sharing a ZIP code with Janesville
Common questions
Janesville lawn care questions
When is leaf pickup in Janesville?
Loose leaf collection runs November 9 to 20, 2026, by neighborhood map. Leaves may not go in the street gutter before October 1 or after the crew has passed; move them from the terrace to the gutter 1 to 2 days before your date, keep cars off the street that day, and keep storm inlets clear. Crews pass each street once.
How does yard waste and brush pickup work in Janesville?
Bagged yard waste and bundled brush go out with the regular garbage only two weeks a year: May 4 to 8 and November 30 to December 4, 2026. Paper bags or reusable containers up to 35 gallons, each under 50 pounds; plastic bags have not been taken since fall 2023. Brush bundles at most 4 feet long, 12 inches across and 50 pounds, at the curb by 7 a.m.
Where can I take brush and yard waste in Janesville?
The Compost Site and Clean Fill Facility on Black Bridge Road takes grass, leaves and garden debris free from Janesville residents only. Brush, branches and stumps cost $6 a cubic yard for residents and $8 for others. Open April to October weekdays 8 to 7 and Saturday 8 to 1, shorter hours in November, closed early December to the end of March.
How many homes in Janesville have a yard to mow?
Per the ACS 2020-2024 5-year estimates, 67.8% of 29,330 housing units in Janesville are single-family detached, against 74.4% for Rock County, and 67.3% of households own their home.
What does lawn care cost in Janesville?
Mowing a typical quarter-acre lawn runs $39 to $55 a cut and larger or corner lots $53 to $74. A fertilizer and weed control program runs $250 to $550 a season and core aeration $38 to $48. Every range is on the cost page.
Need the lawn handled in Janesville?
Tell us the address, the lot size and what you want done: weekly mowing, fertilizer, aeration or a cleanup. We reply with a price before the first visit.