Childhood Blood Lead Levels in Illinois

Why blood lead screening matters

Blood lead testing is one of the most direct ways to know whether a child has been exposed to lead—whether from water, paint, soil, or other sources. Illinois tracks these results to identify communities with higher exposure rates and target public health resources. If you're concerned about your child's lead exposure, a simple blood test (usually a finger prick) through your pediatrician or local health department can give you answers.

Illinois's pediatric screening program

Illinois requires Medicaid-enrolled children to be screened for lead at ages 12 and 24 months, and then annually through age 6. Children with Medicaid coverage should receive this screening automatically; ask your pediatrician or local health department if your child is due. For uninsured or privately insured children, screening is recommended but not mandated, so you may need to request it.

The Illinois Department of Public Health (IDPH) runs the state's lead poisoning prevention program. They collect and analyze blood lead data from labs across the state and publish county-level summaries showing what percentage of tested children have elevated blood lead levels (defined as 3.5 micrograms per deciliter and above, the current CDC reference value).

Finding your county's data

The CDC's National Environmental Public Health Tracking program publishes Illinois county-level childhood blood lead surveillance data. These percentages help you understand whether elevated lead exposure is common in your area, which can guide conversations with your pediatrician about whether testing makes sense for your child.

To request detailed data for your specific county or zip code, contact:

IDPH Lead Poisoning Prevention Program Phone: (217) 782-3517 Website: dph.illinois.gov (search "lead")

They can provide more recent data, information about screening locations near you, and guidance if your child's test comes back elevated.

What happens after a test

If a child's blood lead level is elevated, the health department follows up to identify the source—often older paint, dust, or contaminated water—and works with families on steps to reduce exposure. Early identification matters because childhood lead exposure can affect learning, behavior, and development, but many effects can be reduced by removing the source.

Next steps for residents

• Ask your pediatrician whether your child is due for blood lead screening, especially if they're under 7.
• If you're concerned about lead in your home's water, request a free or low-cost test from your water utility (search your city or county name + "water lead test").
• Contact IDPH at the number above if you want your county's most recent screening results.
• If your child tests positive for elevated blood lead, work with your pediatrician and local health department to find and eliminate the source.

```json [ { "q": "What is a normal blood lead level for children in Illinois?", "a": "The CDC's current reference value is 3.5 micrograms per deciliter (µg/dL). Illinois tracks any result at or above this level as elevated. Most healthy children in Illinois have much lower levels, but even levels below this threshold can affect development, so lower is always better." }, { "q": "Does Medicaid cover lead testing for kids in Illinois?", "a": "Yes. Medicaid-enrolled children are required to be screened at ages 12 and 24 months, then annually through age 6. If your child has Medicaid, talk to your pediatrician to make sure they're scheduled; screening is usually free." }, { "q": "Can I get my child tested for lead even if they don't have Medicaid?", "a": "Yes, but it may not be automatic. Call your pediatrician and ask for a blood lead test, or contact your local health department for low-cost or free screening options." }, { "q": "Where can I find out if lead in kids' blood is