Free tap water report in seconds — Water Safety Score (0–88), PFAS, lead, hardness, and NSF filter picks for your ZIP.
21,000+ ZIP codes · 150K+ community water systems (EPA SDWIS) · 6,151 PFAS systems (UCMR5) · Updated June 2026 · Built by a 30-year water treatment expert
ENTER YOUR ZIP OR CITY
We pull from published drinking-water data—not scary rumors—then turn it into a score and filter ideas for your ZIP.
Why filtration matters
Illustration only — your report uses real levels for your area.
All 50 states. Look up your ZIP for a Water Safety Score (0–88), PFAS and violation signals, and NSF-certified filter options matched to your report — no signup. We map 21,000+ ZIP codes to EPA records (150K+ community water systems nationally; 6,151 in UCMR5 PFAS monitoring).
WaterCheckup was built by a 30-year water treatment veteran and published industry author.
| Feature | WaterCheckup | Typical aggregators |
|---|---|---|
| Built by a real water expert | ✓30+ years | —Tech companies |
| Coverage | ✓All 50 states, free | —Limited |
| Search by ZIP code | ✓Yes | ~Some |
| Search by public water system | ✓Nationwide | ~Limited |
| All 50 states | ✓Yes | ~Most |
| Expert filter recommendations | ✓Contaminant-matched | —Generic |
| WQA credentials | ✓Level VI (former) | —No |
| 100% Free | ✓Yes | ✓Most |
| EPA verified data | ✓UCMR5 + SDWIS | ~Partial / mixed sources |
Search any ZIP — not just the cities below
Pick a category to see our top certified options — compare a short list, then choose what fits your home.
* Affiliate links — we may earn a commission at no cost to you. Our recommendations are based on certifications and data, not paid placements.
We monitor EPA databases weekly for new PFAS detections, boil water advisories, and violations. One email, no spam, unsubscribe anytime.
No spam. Unsubscribe anytime.