1. Home
2. States
3. Idaho
4. Caldwell

Household hazardous waste drop-off in Caldwell, Idaho

In Caldwell, programs may be called HHW, household chemical waste collection — the listings below use each agency's own name.

This page lists 2 collection events or mobile collections in Caldwell, Idaho, compiled from one official source. Every listing was read directly from the agency's page, and all of them have a street-level map pin — the rest say so on their own page. Most programs are for residents only and many need an appointment — check each official page.

Call ahead. Hours, fees, residency rules, appointments and accepted materials change. Check the official page or call before you go. Never mix chemicals, and keep products in their original containers. Every listing links to its official source.

Listings in Caldwell

• Canyon County HHW Event — O'Connor Field House (December 9, 2026)

  2207 Blaine St, Caldwell, ID

  • Collection event
  • Paint
  • Used motor oil
  • Pesticides & garden chemicals
  • Household chemicals & cleaners
  • Fluorescent bulbs / CFLs
  • Household batteries
  • +4 more

  Dates: December 9, 2026

  Hours: December 9, 2026, 10 a.m.–4 p.m. at O'Connor Field House.

  Source: Canyon County Solid Waste · checked November 9, 2026

• Canyon County HHW Event — O'Connor Field House (June 9, 2027)

  2207 Blaine St, Caldwell, ID

  • Collection event
  • Paint
  • Used motor oil
  • Pesticides & garden chemicals
  • Household chemicals & cleaners
  • Fluorescent bulbs / CFLs
  • Household batteries
  • +4 more

  Dates: June 9, 2027

  Hours: June 9, 2027, 10 a.m.–4 p.m. at O'Connor Field House.

  Source: Canyon County Solid Waste · checked November 9, 2026

Other cities in Idaho

• Boise (9)
• Twin Falls (2)

More household hazardous waste listings in Idaho