Naperville is situated in two Illinois counties. The portion north of 87th Street is in DuPage County; the portion south of 87th Street is in Will County. Also listed are phone numbers for the respective health departments of each county.
(630) 682-7000 | www.co.dupage.il.us
DuPage County Health Department
(630) 682-7400 | www.dupagehealth.org
(815) 722-5515 | www.willcountyillinois.com
Will County Health Department
(815) 727-8480 | www.willcountyhealth.org