Home / Tap Water Quality / Minnesota / Plymouth
Plymouth, MN · 76,846 people served · EPA data 2021–2026

Tap water quality in Plymouth, Minnesota

Plymouth's water systems logged zero health-based EPA violations in 2021–2026 — water that met every federal health standard on record. Day-to-day quality still varies with pipes and plumbing, but the municipal record here is clean.

B-Good
Plymouth water grade: B-
Good — our A–F grade from this city's EPA compliance record, relative to Minnesota and the nation. How we grade →
Health-based violations, 2021–20260
Federal health standardsall met
Plymouth76,546 served
12 Hi Mobile Home Park300 served
Minnesota quality rank#41 / 51 (78.8/100)
Minnesota avg hardness175 PPM (hard)
Want to know what's actually in your Plymouth water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.

Plymouth tap water FAQ

Is tap water safe to drink in Plymouth?

Plymouth's community water systems reported no health-based EPA violations in 2021–2026, meaning the water met federal health standards throughout. Home plumbing (especially pre-1986 lead solder or service lines) can still affect what reaches your glass — a home test settles it.

Who supplies Plymouth's water?

Plymouth (serving about 76,546 people); 12 Hi Mobile Home Park (serving about 300 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Plymouth?

City-level hardness isn't published in a single federal dataset, but Minnesota averages 175 PPM — "hard" on the USGS scale. Your utility's water quality report lists Plymouth's exact hardness, or a $10 test strip tells you in a minute. If it comes back over 120 PPM, see our water softener guidance in the purification calculator.

Do I need a water filter in Plymouth?

The municipal record is clean, so filtering in Plymouth is about taste, hardness and your own plumbing rather than compliance. A carbon filter fixes chlorine taste; test first if your home predates 1986 (lead solder era).

Want to know what's actually in your Plymouth water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.