County HHW / e-waste

Rock County Household Hazardous Waste Facility

Official drop-off for Madison, WI. City dispose pages own the rule for each item. This page is the place: address, hours, and the originating program. Confirm before you go.

Address: 3328 N Highway 51, Janesville, WI 53545

Hours: Apr–Oct Sat events

Phone: 608-757-5440

ZIP: 53546

Official source: www.co.rock.wi.us/departments/health-environmental-health

DirectionsZIP finderMadison dump, bulky & HHW

Rock County Household Hazardous Waste Facility and nearby drop-offs

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Materials often accepted

Tied to this site’s listing — still confirm on the official source. Each link is the Madison city rule, not a national guess.

Other drop-offs within 40 miles

Common questions

When is Rock County Household Hazardous Waste Facility open?

Listed hours: Apr–Oct Sat events. Confirm on the official source before you drive — holiday and event hours change.

Is there a phone number for Rock County Household Hazardous Waste Facility?

Call 608-757-5440 for load rules, residency, and whether you need an appointment.

What can I drop off at Rock County Household Hazardous Waste Facility?

This site is listed for Latex Paint, Oil-Based Paint, Pesticides, Herbicides, Motor Oil, Antifreeze, Car Battery, Household Batteries, Fluorescent Bulbs / CFLs, Propane Tank, Gasoline, Pool Chemicals, Cooking Oil, Television, Computer Monitor, Laptop, Desktop Computer, Printer, Tablet, Smartphone, Mixed E-Waste, Ink / Toner Cartridges. Acceptance still depends on the official program — not this list alone.

Do I need to live in Madison to use Rock County Household Hazardous Waste Facility?

Many municipal dumps and HHW sites are resident-only or appointment-only. Check the official Madison, WI program page before you load the vehicle.

Where is the official listing for Rock County Household Hazardous Waste Facility?

DumpRegistry cites the originating program. Confirm hours and fees on that official page, not a third-party directory.

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