TapScore aQuality

Know what's really in your tap water. Search any U.S. ZIP code to see your local water utility's quality score and any contaminants detected above health guidelines.

TapScore helps you understand what's actually in your tap water — in seconds.

Enter any U.S. ZIP code, city, or state — or let TapScore find your location automatically — to see:

• TapScore Rating (0–100): an at-a-glance water quality score for your local utility • TapQuality Rating: Excellent, Very Good, or Poor, based on contaminant levels compared to health-based guidelines • Elevated Contaminants Detected: specific substances found above recommended health guidelines, when present • Utility details: which water utility serves your area, its water source, and population served

Your current location stays pinned at the top, with your 9 most recent searches right below it — perfect for checking water quality before moving, traveling, or just to know what's coming out of your faucet.

TapScore's ratings compare results against health-based guidelines, not just legal limits — because legal limits for tap water haven't been meaningfully updated in nearly 20 years, and passing them doesn't always mean the water meets current health science.

Know your water.