Childhood Blood Lead Surveillance Data — Minnesota
Why blood lead levels matter
Children under 6 are most at risk from lead exposure. Even small amounts can harm brain development, learning, and behavior—often without any obvious symptoms. Testing is the only way to know if a child has been exposed.
Minnesota tracks how many children have elevated blood lead levels through its pediatric surveillance program. This data helps identify where children are at greatest risk and where public health efforts should focus.
Minnesota's screening and testing program
Minnesota requires healthcare providers to test children for lead at ages 12 months and 24 months through the state's Medicaid program. The state health department also recommends universal screening at these ages for all children, regardless of insurance.
If a child's blood lead level is 3.5 micrograms per deciliter (µg/dL) or higher, it's considered elevated and must be reported to the Minnesota Department of Health (MDH). The state then follows up with the family to identify the source of exposure—which may include home paint, soil, dust, water, or other sources—and provides guidance on reducing the risk.
Where to find the data
The CDC's National Environmental Public Health Tracking Network publishes county-level data on the percentage of Minnesota children tested with elevated blood lead levels. This data is updated regularly and allows you to see trends in your area.
For detailed information specific to your county or neighborhood, contact:
Minnesota Department of Health — Lead Program
- Phone: 651-201-5000
- Website: health.state.mn.us
You can request specific surveillance data, screening rates, or case information related to your address or community.
What elevated means
The CDC's reference value for children's blood lead is 3.5 µg/dL. At this level and above, public health action is recommended. This doesn't mean immediate harm, but it does mean a source of lead exposure should be identified and reduced.
If your child's test is elevated
Work with your pediatrician and the Minnesota Department of Health to:
- Identify likely sources (home, school, outdoor environment, water)
- Reduce exposure through cleaning, repairs, or moving if necessary
- Schedule follow-up testing to monitor levels
Next steps for residents
- Ask your pediatrician if your child has been tested for lead and what the result was
- Check county-level data via the CDC's National Environmental Public Health Tracking Network to understand elevated percentages in your area
- Contact the MDH Lead Program if you suspect lead exposure in your home or want guidance on testing and remediation
- Review your water system's lead service line inventory on LeadPipeLookup to understand whether lead pipes may be present in your neighborhood
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```json [ { "q": "What blood lead level is considered elevated in Minnesota?", "a": "The CDC reference value is 3.5 micrograms per deciliter (µg/dL). Levels at or above this require follow-up to identify and reduce the source of exposure." }, { "q": "At what ages should my child be tested for lead in Minnesota?", "a": "Minnesota recommends testing at 12 months and 24 months. Children on Medicaid must be tested at these ages; testing is also recommended for all children regardless of insurance." }, { "q": "Where can I find blood lead data for my county in Minnesota?", "a": "The CDC's National Environmental Public Health Tracking Network publishes county-level data on the percentage of tested children with elevated levels. You can also contact the Minnesota Department of Health for detailed local information." }, { "q": "What should I do if my child's blood lead test is elevated?", "a": "Work with your pediatrician and the Minnesota Department of Health to identify the source—which may include paint, soil, dust, or water—and take steps to reduce exposure. Follow-up testing