Lake County, Illinois Water Systems

Lake County, Illinois

142 community water systems on record — 103 active, 39 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 Lake County, Illinois

System name	City	Population served	Status
2ND STREET WATER ASSOCIATION	ANTIOCH	24	Inactive
ACORN ACRES SUBDIVISION	LAKE ZURICH	240	Inactive
ALDEN LONG GROVE NURSING CENTER	INGLESIDE	218	Active
ALLENDALE ASSOCIATION	LAKE VILLA	400	Active
ANTIOCH	ANTIOCH	14,175	Active
AQUA ILLINOIS-FAIRHAVEN ESTATES	KANKAKEE	225	Active
AQUA ILLINOIS-HAWTHORN WOODS	KANKAKEE	3,065	Active
AQUA ILLINOIS-IVANHOE	KANKAKEE	650	Active
AQUA ILLINOIS-RAVENNA	KANKAKEE	267	Active
AQUA ILLINOIS-ROCKWELL	KANKAKEE	1,762	Active
AVALON MHP	BENTON TWP	73	Inactive
AVANTARA LONG GROVE	LONG GROVE	200	Active
BANNOCKBURN	BANNOCKBURN	1,013	Active
BARRINGTON	BARRINGTON	10,327	Active
BEACH MHP	DENVER	624	Active
BEACH PARK	BEACH PARK	8,710	Active
BEACH PARK NO.2	BEACH PARK	3,435	Inactive
BLACKWELL CMNTY WELL	ELA TWP	25	Inactive
BLAN MAR HILLS HOMEOWNERS ASSN	LIBERTYVILLE TWP	25	Inactive
BLUFF LAKE LODGES, INC.	ANTIOCH	24	Active
BRADLEY ROAD SYSTEM - LAKE CO PW	LIBERTYVILLE	612	Inactive
BRIARCREST SBDV HOMEOWNERS ASSOCIATION	SCHAUMBURG	207	Active
BRIGHTON POND HOMEOWNERS ASSOCIATION	ZION	57	Inactive
BROOKDALE SENIOR LIVING - VERNON HILLS	VERNON HILLS	225	Active
CAMBRIDGE COURTS MHP	NORTHBROOK	658	Active
CENTRAL LAKE COUNTY JAWA	LAKE BLUFF	0	Active
CHAIN-O-LAKES MHP	GRAYSLAKE	84	Active
CHEVY CHASE SWR & WTR CMPNY	VERNON TWP	300	Inactive
COLONIAL PARK APTS	WARREN TWP	800	Inactive
COUNTRYSIDE LAKE SUBDIVISION -LAKE CO PW	LIBERTYVILLE	1,287	Active
COUNTRYSIDE MANOR SBDV- LAKE CO PW	LIBERTYVILLE	1,518	Inactive
DAYSPRING BIBLE COLLEGE	LAKE ZURICH	30	Active
DEERFIELD	DEERFIELD	19,196	Active
DIAMOND LAKE MHP	MUNDELIN	198	Active
DUCK LAKE WELL OWNERS ASSOCIATION	INGLESIDE	141	Active
ECHO LAKE BLOCK IV WTR ASSN	ELA TWP	25	Inactive
ECHO LAKE WATER SYSTEM BLOCK 7	LAKE ZURICH	40	Inactive
ELM OAK MUTUAL WATER SYSTEM	LAKE FOREST	50	Active
ENGLISH RIDGE DVLPMNT	ELA TWP	500	Inactive
FIELDS OF LONG GROVE	LONG GROVE	267	Active
FOREST LAKE ADDITION - LAKE CO PW	LIBERTYVILLE	225	Active
FOX LAKE	INGLESIDE	11,780	Active
FOX LAKE HILLS SUBDIVISION - LAKE CO PW	LIBERTYVILLE	2,628	Active
FOX LAKE PLANT 2	CARY	3,600	Inactive
GLENKIRK CAMPUS SOUTH	FREMONT TWP	25	Inactive
GLENSTONE SBDV HOA	LONG GROVE	65	Active
GRANDWOOD PARK SUBDIVISION - LAKE CO PW	LIBERTYVILLE	5,751	Active
GRAYSLAKE	GRAYSLAKE	21,248	Active
GREAT LAKES NAVAL TRAINING STATION	GREAT LAKES	23,000	Active
GREEN OAKS	GREEN OAKS	1,470	Active
GURNEE	GURNEE	30,193	Active
HAINESVILLE	VOLO	3,528	Active
HEIDEN GARDENS CONDOS	LAKE BLUFF	217	Active
HIGHLAND LAKE WATER COMPANY	LIBERTYVILLE	36	Inactive
HIGHLAND PARK	HIGHLAND PARK	30,176	Active
HIGHWOOD	HIGHWOOD	5,335	Active
HILLDALE MANOR SUBDIVISION	FOX LAKE	414	Active
HOLLY HOCK HILL MHP	FLAGSTAFF	47	Active
ISLAND LAKE	ISLAND LAKE	8,066	Active
ISLAND LAKE WTR CMPNY	ISLAND LAKE	25	Inactive
KILDEER PROPERTIES HMWNRS ASSN	KILDEER	224	Inactive
LAKE BARRINGTON	LAKE BARRINGTON	500	Active
LAKE BARRINGTON SHORES SUBDIVSION	LAKE BARRINGTON	2,300	Active
LAKE BLUFF	LAKE BLUFF	5,600	Active
LAKE BLUFF ESTATES MHP	MELROSE PARK	165	Active
LAKE CO. PW - ARDEN SHORES ESTATES	LIBERTYVILLE	105	Active
LAKE COUNTY NORTH LIBER	LAKE COUNTY NORTH LIBER	518	Inactive
LAKE COUNTY PUBLIC WATER DISTRICT	ZION	1	Active
LAKE COUNTY PW- HAWTHORN WOODS	LIBERTYVILLE	675	Active
LAKE FOREST	LAKE FOREST	19,642	Active
LAKE VIEW MHP	BEACH PARK	568	Active
LAKE VILLA	LAKE VILLA	8,829	Active
LAKE ZURICH	LAKE ZURICH	19,759	Active
LAKEMOOR	LAKEMOOR	2,720	Active
LAKEWOOD WTR SYS	ELA TWP	25	Inactive
LAMB'S FARM	LIBERTYVILLE	175	Inactive
LCPW - BROOKS FARM SUBDIVISION	LIBERTYVILLE	1,563	Active
LCPW - HIGHLAND LAKE SUBDIVISION	LIBERTYVILLE	330	Active
LCPW - OAK TERRACE	LIBERTYVILLE	45	Active
LCPW - PEKARA SUBDIVISION	LIBERTYVILLE	3,711	Active
LCPW-KNOLLWOOD PWS	LIBERTYVILLE	6,078	Inactive
LIBERTYVILLE	LIBERTYVILLE	20,500	Active
LINCOLNSHIRE	LINCOLNSHIRE	7,940	Active
LINDENHURST	LINDENHURST	14,500	Active
LONG GROVE	LONG GROVE	70	Active
MOUNT ST JOSEPH SCHOOL ICF	VOLO	125	Active
MUNDELEIN	MUNDELEIN	31,500	Active
NEW PERSPECTIVE SENIOR LIVING	INGLESIDE	62	Active
NORTH CHICAGO	NORTH CHICAGO	16,813	Active
PARK CITY	PARK CITY	5,425	Active
PARK CITY MHP	PARK CITY	2,460	Active
PAULS MHP	PERU	38	Active
PHEASANT KNOLLS SBDV	ELA TWP	130	Inactive
PINE VIEW APARTMENTS	GLENVIEW	36	Inactive
PORTS SULLIVAN LAKE OWNERS ASSOCIATION	LAKEMOOR	293	Active
PRAIRIE PATH -PORT BARRINGTON SHORES	MCHENRY	67	Active
PRAIRIE PATH WATER COMPANY-CHAR-MAR	MCHENRY	186	Active
PRAIRIE PATH WATER COMPANY-DEL-MAR	MCHENRY	300	Active
PRAIRIE PATH WATER COMPANY-HARBOR RIDGE	MCHENRY	1,064	Active
PRAIRIE PATH WATER COMPANY-VALENTINE	MCHENRY	252	Active
PRAIRIE TRAILS OF LONG GROVE	LONG GROVE	189	Active
PROMONTORY POINTE HOMEOWNERS ASSOCIATION	LAKE ZURICH	78	Active
PROVIDENCE AT PAINTED LAKES	LAKE VILLA	1,650	Inactive
RAND ESTS SBDV	LAKE ZURICH	78	Inactive
RIVERWOODS	VERNON HILLS	3,618	Active
RIVERWOODS SPECIAL SERVICE DISTRICT 3	RIVERWOODS	234	Inactive
RIVERWOODS-SPCL SRVC DSTRCT 17	RIVERWOODS	45	Inactive
ROSING LAKEVIEW WATER ASSOCIATION	ANTIOCH	1	Inactive
ROUND LAKE	ROUND LAKE	18,430	Active
ROUND LAKE BEACH	ROUND LAKE BEACH	27,200	Active
ROUND LAKE HEIGHTS	ROUND LAKE HEIGHTS	2,622	Active
ROUND LAKE PARK	ROUND LAKE PARK	4,900	Active
ROYAL MELBOURNE HOMEOWNERS ASN	SCHAUMBURG	382	Active
SADDLEBROOK FARMS	GRAYSLAKE	2,558	Active
SCHWERMANNS 2ND AND 3RD WTR BRD	MUNDELEIN	285	Active
SHORELINE TRC MHP	CHICAGO	504	Active
STATE OF ILLINOIS WAUKEGAN DEV	STATE OF ILLINOIS WAUKEGAN DEV	710	Inactive
STRAWBERRY 1	MUNDELEIN	0	Inactive
STURM SBDV	LAKE ZURICH	54	Inactive
SUMMIT HOMEOWNERS ASSOCIATION	LAKE ZURICH	19	Inactive
SYLVAN LAKE 1ST SUBDIVISION	MUNDELEIN	210	Active
TANNERON BAY HOMEOWNERS ASSOCIATION	VERNON HILLS	256	Active
TEMPEL FARMS	NEWPORT TWP	25	Inactive
TERRACE OAK APARTMENTS	GURNEE	58	Inactive
THE PRESERVE AT LONG GROVE	ELGIN	204	Active
TOWER LAKES	VOLO	1,372	Active
TOWER LAKES-COUNTRY CLUB	TOWER LAKES	1,200	Inactive
TOWNERS SUBDIVISION	MUNDELEIN	206	Active
UNIVERSITY ST MARY OF THE LAKE	MUNDELEIN	365	Inactive
US ARMY FT SHERIDAN	HIGHWOOD	3,500	Inactive
VERNON HILLS - LAKE CO PW	LIBERTYVILLE	33,207	Active
VOLO	VOLO	6,629	Active
WADSWORTH OAKS SUBDIVISION	WADSWORTH	185	Active
WAUCONDA	WAUCONDA	14,084	Active
WAUKEGAN	WAUKEGAN	87,149	Active
WEST SHORE PARK SUBDIVISION	MUNDELEIN	590	Active
WEST SHORELAND SUBDIVISION	MUNDELEIN	189	Active
WHISPERING LAKES WATER SYSTEM, INC.	NORTHBROOK	375	Active
WILDWOOD SUBDIVISION - LAKE CO PW	LIBERTYVILLE	14,832	Active
WINTHROP HARBOR	WINTHROP HARBOR	6,565	Active
WYNSTONE WATER COMPANY	GENEVA	1,424	Active
ZION	ZION	24,442	Active