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Illinois Daycare Ratios by Age: 2026 Licensing Rules Explained
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Toddler
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Updated November 2026.
Illinois child care centers must have one adult for every 4 infants, 5 toddlers, 8 two-year-olds and 10 three or four-year-olds. Each age also has a maximum group size, which limits how many children can share one room even when there are enough adults.
For decades these rules were known as DCFS Part 407. Since July 1, 2026, child care licensing in Illinois is run by the new Illinois Department of Early Childhood (IDEC), and the center rules now sit in Title 23, Part 2008 of the Illinois Administrative Code. Below is the ratio table in plain language, the exceptions that confuse most parents, and how to check ratios yourself when you visit a center.
Section 2008.190 of the Illinois Administrative Code (formerly 89 Ill. Adm. Code 407.190) sets these minimums for licensed centers:
These are minimums. A center can always staff more adults than the rule requires, and many do in infant and toddler rooms.
The ratio is how many children one adult can supervise. The group size is the most children allowed together in one room or group, no matter how many adults are there.
Here is how the two work together in an infant room. Eight babies need two teachers. Twelve babies need three teachers. A thirteenth baby cannot join that room even with a fourth teacher, because twelve is the group limit for infants. The center would need a second infant room.
Group size matters because a room with 30 children and three teachers feels very different from a room with 10 children and one teacher. Smaller groups are quieter, and teachers get to know each child faster.
Centers can combine ages in some situations. When they do, Illinois says the ratio and group size are based on the youngest child in the group. If one 20-month-old joins a room of two-year-olds, that room has to follow the toddler ratio of 1 to 5.
The rules allow these combinations:
That last rule explains why you may see a combined room at 7:00 AM or 5:30 PM. Fewer children are there at those times, so centers often bring groups together. The youngest-child rule still applies.
For children older than toddlers, Illinois allows half of the required staff to be in the room during nap, as long as the full number of staff is still in the building. This gives teachers time for lunch breaks and planning.
Infants and toddlers are different. They must be directly supervised by the full required staff at all times, including while they sleep.
National health and safety standards called Caring for Our Children, written with the American Academy of Pediatrics, recommend smaller numbers for the youngest children:
You can see the federal summary on ChildCare.gov. Few states require ratios this low, and Illinois is in line with most of the country. Use the national numbers as a reference point when you compare programs, not as a legal standard.
Family child care homes are licensed under a separate part of the rules. According to IDEC, a licensed home can care for up to 8 children with one provider, or up to 12 with an assistant, with extra limits on how many can be babies. If you are comparing a home and a center, ask the home provider how many children are enrolled, how many are under two, and who covers when the provider is sick.
Licensing rules tell you the minimum. A tour tells you what actually happens. These questions help:
Watch how teachers move during your visit. In a well-run room, every adult can see the children they are responsible for, and nobody is left alone with too many kids while a colleague steps out.
Ratios are one part of quality. See also Illinois teacher requirements and how to check a daycare's license and violations.
One adult for every eight two-year-olds, with no more than 16 children in a group.
One adult for every four infants from 6 weeks through 14 months, with a maximum of 12 infants in one group.
Only when that person is working directly with the children in the group. A director in the office does not count toward a classroom's ratio.
The Illinois Department of Early Childhood, which took over child care licensing from DCFS on July 1, 2026. Its staff make unannounced visits to licensed programs every year. If a room looks out of ratio, talk to the director first, then contact IDEC licensing if needed.
At Children's Land, each age group has its own program, from the infant room to toddlers and preschool. Our private kindergarten classes keep a 1 to 10 teacher-to-child ratio, half the state maximum for that age. Every room has cameras, and monitors at the entrance let parents look in. Find a location near you and ask to see the room your child would join.
Related reading: How Much Does Daycare Cost in Illinois? 2026 Guide.
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