Knox County, Illinois Water Systems

Knox County, Illinois

22 community water systems on record — 17 active, 5 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 Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

Community water systems in Knox County, Illinois

System name	City	Population served	Status
ABINGDON	MONMOUTH	3,275	Active
ALTONA	ALTONA	483	Active
AQUA ILLINOIS-OAK RUN	KANKAKEE	1,885	Active
EAST GALESBURG	EAST GALESBURG	860	Active
GALESBURG	GALESBURG	31,620	Active
GALESBURG MHC	—	2,015	Inactive
HENDERSON	HENDERSON	375	Active
HILL CRCTL CTR	GALESBURG TWP	1,300	Inactive
KNOX CO BREEZY BLUFF WTR CORP	—	43	Inactive
KNOXVILLE	KNOXVILLE	3,120	Active
MAQUON	MAQUON	218	Active
NORTHWOOD & ISLAND LN WTR ASSN	UNSPEC PL IN CO	75	Inactive
ONEIDA	ONEIDA	644	Active
PRAIRIE PATH WATER COMPANY-CEDAR WATER	OAKWOOD	172	Active
RIO	RIO	265	Active
ST AUGUSTINE	MONMOUTH	119	Active
VICTORIA	VICTORIA	268	Active
WATAGA	WATAGA	965	Active
WESTPORT WATER MUTUAL	OTTAWA	61	Inactive
WILLIAMSFIELD	WILLIAMSFIELD	575	Active
WINDWOOD WATER SYSTEM, INC.	GALESBURG	185	Active
YATES CITY	YATES CITY	828	Active