Delaware County, Iowa Water Systems

Delaware County, Iowa

11 community water systems on record — 8 active, 3 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 Delaware County, Iowa

System name	City	Population served	Status
COLESBURG WATER SUPPLY	COLESBURG	386	Active
DELAWARE MUNICIPAL WATER SUPPLY	OELWEIN	142	Active
DELHI WATER SUPPLY	DELHI	420	Active
EARLVILLE MUNI WATER SUPPLY	EARLVILLE	724	Active
GREELEY, TOWN OF	GREELEY	276	Inactive
GROUP OF COTTAGES	DELHI	35	Inactive
HOPKINTON MUNICIPAL UTILITIES	HOPKINTON	622	Active
MANCHESTER WATER SUPPLY	MANCHESTER	5,077	Active
PARK AT SUNSET BEACH	RYAN	26	Inactive
PENN CENTER INC	DELHI	89	Active
RYAN WATER SUPPLY	RYAN	350	Active