Daycare ratios by state
An infant room can be 1:3 in one state and 1:4 across the border, and the room next door may be capped at eight children whatever the ratio says. This is how the rules are actually structured, and where to find the ones that bind you.

There is no federal ratio
The United States has no national staff-to-child ratio for child care. Licensing is a state function, and each state writes its own numbers, its own age bands and its own exceptions. Childcare.gov, the federal consumer site, is explicit that licensing sets minimum health and safety requirements and that states and territories add their own on top.
The federal rules that do exist come through the Child Care and Development Fund. They require every state to run background checks on staff at licensed, regulated and registered providers, and they set health and safety training duties for programs that take CCDF money. They also require each state to have ratio and group-size standards, but they leave the numbers to the state.
The searchable place to compare states is the National Database of Child Care Licensing Regulations, run by the HHS Administration for Children and Families. It is the only source that holds every state's current regulation text in one place, and it is the one to check before you rely on any summary — including this one.
Licensing requirement
The chart on the wall is not the law
State agencies publish ratio charts as convenience documents. The binding text is the regulation itself, and charts go stale between rule changes. When a decision costs money, read the regulation.

Two numbers, not one
Most state ratio tables have two columns that matter: children per staff member, and maximum group size. Where a state sets both, they are independent limits and both bind.
A state licensing 1:4 for infants with a group cap of eight does not permit twelve infants with three teachers in one room. It permits eight, with two teachers, and the other four need a second room. Programs that plan from ratio alone routinely discover this at the licensing visit.
Group size exists because supervision does not scale linearly. Three adults in a room of twelve infants is a noisier, harder environment than two rooms of six, and the research behind the caps says so.
| Age band | Ratio range | Group cap range |
|---|---|---|
| Infants, 0-12 months | 1:3 – 1:6 | 6 – 12 |
| Toddlers, 13-24 months | 1:3 – 1:9 | 8 – 18 |
| Two-year-olds | 1:4 – 1:11 | 9 – 22 |
| Preschool, 3-4 years | 1:7 – 1:20 | 18 – 36 |
| School-age, 5+ | 1:10 – 1:26 | 20 – 50 |
Lowest and highest center figures in the rules of eleven states, checked 2026-10-18: California, Florida, Georgia, Illinois, Maryland, Massachusetts, New York, North Carolina, Pennsylvania, Texas and Washington. Infants are 1:4 in most of them and preschool is most often 1:10, but age bands do not line up exactly from state to state. Your binding numbers come from your own regulation text — see the sources below.
Eleven states side by side
These are the center numbers as each state writes them, read from its own regulation on 2026-10-18. Each state draws its age bands in its own months, so treat a row as that state's rule for roughly that age, and use the staff-to-child ratio calculator with your own state's exact bands. The infant ratio rules guide covers why the first column is the tightest.
| State | Infants | Preschool, 3-4 | School-age |
|---|---|---|---|
| California | not checked | 1:12 | not checked |
| Florida | 1:4 (no group cap) | 1:15 – 1:20 | 1:25 |
| Georgia | 1:6 / 12 | 1:15 – 1:18 / 30 – 36 | 1:20 – 1:25 / 40 – 50 |
| Illinois | 1:4 / 12 | 1:10 / 20 | 1:20 / 30 |
| Maryland | 1:3 / 6 | 1:10 / 20 | 1:15 / 30 |
| Massachusetts | 1:3 / 7 | 1:10 / 20 | 1:13 / 26 |
| New York | 1:4 / 8 | 1:7 – 1:8 / 18 – 21 | 1:10 / 20 |
| North Carolina | 1:5 / 10 | 1:15 – 1:20 / 25 | 1:25 / 25 |
| Pennsylvania | 1:4 / 8 | 1:10 / 20 | 1:12 – 1:15 / 24 – 30 |
| Texas | 1:4 / 10 | 1:15 – 1:18 / 30 – 35 | 1:22 – 1:26 / 35 |
| Washington | 1:4 / 8 | 1:10 / 20 | 1:15 / 30 |
Ratio / maximum group size, center rules only; a range means the state steps the number within that band. New York sets 1:3 for infants under six weeks. Home programs run on different tables. Sources: each state's regulation in the list below, checked 2026-10-18.
Mixed-age rooms follow the youngest
The most common rule is that a mixed-age group takes the ratio of the youngest child present. One eleven-month-old in a toddler room usually means the whole room runs at the infant ratio until that child leaves for the day.
Some states soften this with a mixed-age table or a formula of their own (Florida, for groups of children two and older, goes by the age group with the most children in it); others apply the youngest-child rule flatly. The difference is worth knowing before you accept an enrollment that crosses a band, because it can cost you a teacher for the session.
The same question arises at the edges of the day. A program that combines rooms at 6:30 and again at 5:30 is running a mixed-age group in both, and the ratio for those hours is set by whoever is youngest.
Age is counted in months, not school years
Ratio bands are written in months for a reason. A child who turns two in March does not move to the two-year-old ratio in September — they move on their birthday, and the room's staffing changes with them.

Why the numbers differ at all
Ratios are a policy trade-off made fifty times over. Tighter ratios mean more adults per child, higher quality on most measures, and higher cost — which flows through to tuition and, at the margin, to how many families can afford care at all.
States sit at different points on that trade-off, and they move. A state that loosens a ratio is usually responding to supply: programs closing, waiting lists lengthening, providers saying they cannot staff at the current numbers. A state that tightens one is usually responding to an incident.
For a provider the practical consequence is that ratios change under you. Subscribe to your licensor's rule-change notices, because a loosened ratio is a business opportunity and a tightened one is a staffing bill with a deadline.
How to check yours properly
Start at the national database, find your state, and read the ratio and group-size sections of the regulation rather than the summary. Note the age bands in months, the mixed-age rule, and whether the state counts the director in ratio.
Then check three practical questions your regulation may answer separately: whether two adults are required whenever any child is present, whether ratio relaxes during nap, and whether it relaxes for outdoor play. The answers change how you staff the day far more than the headline ratio does.
- Read the regulation, not the chart.
- Note the bands in months.
- Find the mixed-age rule.
- Check the nap and two-adult rules separately.
Sources
- Child Care Licensing — Childcare.govfetched 2026-10-18
- National Database of Child Care Licensing Regulations (HHS/ACF)fetched 2026-09-04
- eCFR — 45 CFR 98.41, CCDF health and safety requirementsfetched 2026-10-18
- eCFR — 45 CFR 98.43, criminal background checksfetched 2026-10-18
- California — 22 CCR § 101216.3, teacher-child ratio (Cornell LII)fetched 2026-10-18
- Florida Statutes § 402.305 — staff-to-children ratiofetched 2026-10-18
- Georgia — Rule 591-1-1-.32, staff:child ratios (Cornell LII)fetched 2026-10-18
- Illinois — 89 Ill. Adm. Code 407.190, ratios and group size (Cornell LII)fetched 2026-10-18
- Maryland — COMAR 13A.16.08.03, group size and staffing (Cornell LII)fetched 2026-10-18
- Massachusetts — 606 CMR 7.10, ratios and group sizes (Cornell LII)fetched 2026-10-18
- New York — 18 NYCRR 418-1.8, supervision ratios (Cornell LII)fetched 2026-10-18
- North Carolina DCDEE — classroom staff-to-child ratio chartfetched 2026-10-18
- Pennsylvania — 55 Pa. Code § 3270.51, staff:child ratiofetched 2026-10-18
- Texas HHS — Chapter 746 minimum standards for child-care centersfetched 2026-10-18
- Washington — WAC 110-300-0356, ratios and group sizefetched 2026-10-18
Keep going
Staff-to-child ratio calculator
Put your state's numbers in and get the staffing.
Infant daycare ratio rules
Why the infant band is the tightest, and what it costs.
7 min
Classroom capacity calculator
Where group size meets floor area.
In-home daycare vs preschool
How the two settings' ratios and hours differ.