Skip to main content
CityRuleLookup

Rock County, WI Parking Rules: Overnight Parking (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Courthouse lots close
10 p.m. to 6 a.m.
Weekday space limits run
7:30 a.m.-5:30 p.m. Mon-Fri
Enforced by
Janesville Police Department
Forfeiture range
$3.00 to $50.00
Source rule
Janesville Ord. Sec. 10.44.020 (1983)

Summary

The courthouse parking lots in Janesville, the seat of Rock County government, close to all parking between 10 p.m. and 6 a.m. unless the police department gives specific permission. Rock County Ordinance Section 3.104(1) adopts this rule, plus a 7:30 a.m. to 5:30 p.m. weekday limit on designated spaces, directly from the City of Janesville's own parking code under a policing agreement between the two governments.

City-specific rules exist: Milton, and Beloit have their own overnight parking rules that differ from Rock County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

10.44.020 Courthouse parking lots--Additional restrictions. In the upper and lower courthouse parking lots, the following restrictions shall apply in addition to all others provided by this title: (A) No person shall stop, park or leave standing any vehicle in any space specifically designated for a particular person, official or type of vehicle, unless such person is that particular person or official or is driving that type of vehicle. (B) The limitations regarding parking in the courthouse parking lots shall apply only from seven-thirty a.m. until five-thirty p.m. on Monday through Friday. Such limitations shall not be applicable on Saturdays, Sundays or holidays on which the courthouse is not open for the transaction of official business. (C) The courthouse parking lots shall be closed for all purposes between ten p.m. and six a.m., except by specific permission of the police department. (Ord. 83-335 Sec.1(part), 1983).

Full Breakdown

Rock County does not run a general overnight on-street parking ban across the whole county; its overnight restriction is narrower and tied to county property. 020, because the Janesville Police Department, not a county officer, patrols the upper and lower courthouse lots under an agreement between the County and the City. Three restrictions apply there. First, no one may stop, park, or leave a vehicle standing in a space assigned to a particular official or vehicle type unless they are that person or driving that type of vehicle.

, Monday through Friday, and do not apply on Saturdays, Sundays, or holidays when the courthouse is closed for business. except by the Janesville Police Department's specific permission, a rule dating to City of Janesville Ordinance 83-335, Section 1(part), adopted in 1983. 00, a modest fine compared to state highway parking penalties because it targets courthouse-lot order rather than public-road safety. Drivers who need the lot overnight, for example for an early court appearance or a scheduled event, must get permission from Janesville police in advance rather than assuming the lot is open.

Violations & Fines

Leaving a vehicle in a courthouse lot between 10 p.m. and 6 a.m. without the Janesville Police Department's permission, or in a reserved space outside the person or vehicle it is assigned to, is a forfeiture of not less than $3.00 nor more than $50.00 under Rock County Ordinance Section 3.104(4). The Janesville Police Department enforces the lots under its agreement with the County, not the Sheriff's Office.

Frequently Asked Questions

Can I leave my car in the courthouse lot overnight in Janesville?
No, not without permission. Rock County Ordinance Section 3.104(1) adopts the Janesville rule closing both courthouse lots for all purposes between 10 p.m. and 6 a.m. except by specific permission of the Janesville Police Department.
Does the courthouse parking restriction apply on weekends?
The 7:30 a.m. to 5:30 p.m. designated-space limitations only apply Monday through Friday and do not apply on Saturdays, Sundays, or holidays when the courthouse is closed for business, per the adopted Janesville ordinance text in Section 3.104(1).
What is the fine for violating the courthouse parking rule?
A forfeiture of not less than $3.00 nor more than $50.00 under Rock County Ordinance Section 3.104(4), which covers violations of the courthouse-lot rules adopted in Section 3.104(1).

Sources & Official References

Other rules in Rock County

All Rock County rules

How Rock County compares: Cities with the Strictest Overnight Parking Rules·Compare Rock County to another location·View the Wisconsin parking rules overview

Get notified when Overnight Parking in Rock County, WI changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.

Overnight Parking in Cities Across Rock County