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Cody, WY · 18,392 people served · EPA data 2021–2026

Tap water quality in Cody, Wyoming

Cody's water systems logged 1 health-based EPA violation in 2021–2026, most recently in 2024 — a modest record, with lead and copper rule revisions the issue found. For context, Wyoming's systems average 1.7 health-based violations each.

C+Fair
Cody water grade: C+
Fair — our A–F grade from this city's EPA compliance record, relative to Wyoming and the nation. How we grade →
Health-based violations, 2021–20261
Lead And Copper Rule Revisions1
Cody, City Of10,224 served
Northwest Rural Water District7,330 served
Green Acres Mobile Home Park375 served
Jubys Mobile Home Park300 served
Wyoming quality rank#21 / 51 (84.3/100)
Wyoming avg hardness210 PPM (very hard)
Want to know what's actually in your Cody 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

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Cody tap water FAQ

Is tap water safe to drink in Cody?

Cody's systems logged 1 health-based violation in 2021–2026, most commonly lead and copper rule revisions. A violation is a red flag for a period of time, not a permanent condition — your utility's current Consumer Confidence Report shows today's status, and a certified home test shows what's at your tap.

Who supplies Cody's water?

Cody, City Of (serving about 10,224 people); Northwest Rural Water District (serving about 7,330 people); Green Acres Mobile Home Park (serving about 375 people); Jubys Mobile Home Park (serving about 300 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Cody?

City-level hardness isn't published in a single federal dataset, but Wyoming averages 210 PPM — "very hard" on the USGS scale. Your utility's water quality report lists Cody'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 Cody?

With 1 health-based violation on record in 2021–2026, a certified filter is reasonable insurance here: reverse osmosis ($150–$1,300 installed, Angi 2026) covers lead, nitrates and PFAS at the tap. Test first ($50–$200) so you buy for what's actually present.

Want to know what's actually in your Cody 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.