Rock County has no general dark-sky lighting ordinance, and neither does the City of Janesville. Outdoor lighting is mainly addressed through zoning conditions and shoreland standards, not a county-wide dark-sky code.
There is no county-wide dark-sky or light-pollution ordinance in Rock County, and Wisconsin sets no statewide residential lighting standard. The City of Janesville has lighting standards for commercial development's impact on nearby homes but no general dark-sky ordinance. Where lighting is controlled, it is usually through conditional-use permit conditions in zoning (requiring shielded, downcast fixtures) or through mandatory shoreland zoning that limits lighting near lakes and streams. For a routine residential yard light, expect no county dark-sky rule; a persistent glare problem is handled as a private nuisance or under any local ordinance your town or city has adopted.
With no dedicated dark-sky ordinance, enforcement is limited to zoning permit conditions or nuisance remedies rather than a fixed county fine.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Rock County, WI
Wisconsin's cruelty statute (Ch. 951) makes it illegal to keep animals without proper food, water, and shelter, which is how hoarding is enforced. Rock Count...
Rock County, WI
Rock County has no blanket countywide wildlife-feeding ban, but deer and elk feeding is regulated statewide, and nuisance-feeding of wild animals is addresse...
Rock County, WI
Rock County encourages waste reduction and does not ban backyard composting. Wisconsin bans yard waste from landfills, so composting is favored. Nuisance con...
Rock County, WI
Rock County has no countywide ordinance regulating artificial turf. Whether synthetic grass is allowed, and any coverage or stormwater conditions, is decided...
Rock County, WI
Rock County does not ban native or naturalized landscaping, but the mandatory noxious-weed duty still applies. Near navigable water, native shoreland buffers...
Rock County, WI
Collecting rainwater is legal in Wisconsin and Rock County sets no barrier to rain barrels. There is no state permit for a basic downspout rain barrel used f...
See how Rock County's dark sky rules rules stack up against other locations.
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