One Link to a Cool Room: Introducing the Cooling Center Locator
If you need a cool room right now, skip this post: open the Cooling Center Locator, call 2-1-1, and if anyone near you has hot, dry skin or has stopped sweating, call 911. Everything below is just the story of why we built it.
Maricopa County recorded 430 confirmed heat-related deaths in 2025, and nearly half of those who died were people experiencing homelessness. The Valley also runs one of the largest heat-relief operations in the country — more than 200 free cooling centers, respite sites, and hydration stations mapped every day from May through September. The gap between those two facts is mostly an information problem, and information problems are the kind we can work on.
What the tool does
The Cooling Center Locator is one fast, mobile-first page that does three things:
It sends you to the best map that exists. The Maricopa Association of Governments' Heat Relief Network map at hrn.azmag.gov is the most complete, most current picture of heat relief in the Valley — 200+ locations, updated daily through the season, with a built-in filter for pet-friendly sites. We didn't try to copy it or embed it; we put a big, obvious button on it and explain what you'll find when you tap. The best thing a tool can do is get out of the way of a better one.
It takes a ZIP code — only if you want. Type a ZIP and the page points you to the right corner of the Valley: downtown Phoenix sites if you're central, the St. Vincent de Paul Mesa Dining Room if you're in the East Valley, statewide 2-1-1 routing if you're in Arizona but outside Maricopa County. The ZIP is optional, it never leaves your device, and the page works fine if you skip it. Nothing about needing a cool room should require filling out a form.
It keeps a fallback list that doesn't expire. The Heat Relief Network map runs May 1 through September 30. Phoenix is hot in April and October too. So the locator carries a verified list of the six most reliable cooling sites in the city — the City of Phoenix 24/7 respite center at 20 W. Jackson St., the Lodestar Day Resource Center on the Human Services Campus (open daily, year-round), Burton Barr Central Library, Cholla Library's extended evening hours, the Justa Center for adults 55 and older, and St. Vincent de Paul's Key Campus day respite and 170-cot overnight heat shelter. Addresses, phones, and hours, verified June 2026. The page even checks the calendar for you: out of season, it tells you plainly that the map is offline and the list below is the move.
Built for the worst hour of someone's day
Like every Common Ladder tool, the locator collects no personal information, requires no account, and stores nothing anywhere except your own device. There's no ID check at any site on the list — and the page says so up front, because the fear of being turned away keeps people outside in the heat. The signs of heat exhaustion and heat stroke are on the page too, with one clear instruction: hot dry skin, confusion, no sweat — that's 911, not a cooling center.
It loads fast on a low-end phone, works at 375 pixels wide, and degrades politely: no JavaScript, no problem, the full site list is plain HTML and 2-1-1 answers around the clock.
When to use which
Use the locator when you or someone you're helping needs a cool room today. Use our full Phoenix heat relief guide when you want the complete picture — every program, every schedule, the water truck, the family sites. Case managers: the locator is built to be handed across a desk or texted as a single link. It pairs with My Ladder for clients building a daily plan around the heat.
It's free, it's fast, and no one will ask for your name: Open the Cooling Center Locator →
Verify before you go / call ahead. Cooling-center hours and locations change throughout the season. Call 2-1-1 or check the Heat Relief Network map before traveling to any site. If a phone number is out of service, dial 211 for a current referral.
Have a correction or an update? Contact us — we verify and update this information regularly.