DeKalb County, Illinois Water Systems

DeKalb County, Illinois

22 community water systems on record — 20 active, 2 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 DeKalb County, Illinois

System name	City	Population served	Status
BRIARWOOD ACRES SBDV	CORTLAND TWP	110	Inactive
BUCK LAKE ESTATES SUBDIVISION	SOMONAUK	150	Active
CORTLAND	CORTLAND	4,398	Active
CORTLAND CORNERS MHP	AURORA	250	Active
DEKALB	DEKALB	45,000	Active
DONNY BROOK ESTATES SUBDIVISION	DEKALB	30	Active
EVERGREEN MHP	DEKALB	0	Inactive
GENOA	GENOA	5,298	Active
HINCKLEY	HINCKLEY	2,006	Active
KINGSTON	KINGSTON	1,160	Active
KIRKLAND	KIRKLAND	2,000	Active
MALTA	MALTA	1,143	Active
NORTHERN ILLINOIS UNIVERSITY-DEKALB	DEKALB	6,500	Active
SANDWICH	SANDWICH	7,156	Active
SANDWICH ESTATES MHP	CHICAGO	90	Active
SHABBONA	SHABBONA	913	Active
SOMONAUK	SOMONAUK	1,860	Active
SUBURBAN APARTMENTS (DE KALB UNIV DVL)	OAK BROOK	1,050	Active
SYCAMORE	SYCAMORE	18,500	Active
TRIANGLE MANUFACTURED HOME COMMUNITY	ARLINGTON HEIGHTS	124	Active
VALLEY VIEW SUBDIVISION (DEKALB)	KINGSTON	120	Active
WATERMAN	WATERMAN	1,497	Active