Lyon County, Iowa Water Systems

Lyon County, Iowa

12 community water systems on record — 12 active, 0 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

Community water systems in Lyon County, Iowa

System name	City	Population served	Status
ALVORD MUNICIPAL WATER SUPPLY	ALVORD	206	Active
DOON WATER SUPPLY	DOON	619	Active
GEORGE WATER SUPPLY	GEORGE	1,082	Active
INWOOD WATER SUPPLY	INWOOD	928	Active
LARCHWOOD WATER SUPPLY	LARCHWOOD	926	Active
LESTER WATER SUPPLY	LESTER	296	Active
LITTLE ROCK WATER SUPPLY	LITTLE ROCK	441	Active
LYON-SIOUX RWS-BIG SIOUX	ROCK RAPIDS	1,530	Active
LYON-SIOUX RWS-BOYDEN	ROCK RAPIDS	605	Active
LYON-SIOUX RWS-DOON	ROCK RAPIDS	1,765	Active
LYON-SIOUX RWS-ROCK RAPIDS	ROCK RAPIDS	1,187	Active
ROCK RAPIDS MUNICIPAL WATER WORKS	ROCK RAPIDS	2,611	Active