Contact information for the WIC office, Will County Health Department Joliet. This WIC clinic is located in Joliet Illinois. The WIC program in Illinois helps provide supplemental foods, health care referrals and nutrition education for low-income pregnant, breastfeeding and non-breastfeeding postpartum women. If you are planning to apply for WIC benefits at Will County Health Department Joliet, then you may need to provide proof of income, proof of AHCCCS, TANF, food stamps or Section 8 participation that meets the IL WIC income guidelines and proof of residence or identity. To find out more contact the office below.