Missouri Daycare Ratios: Staff-to-Child Ratios and Group Sizes by Age
Missouri sets center and group home staffing in 5 CSR 25-500, administered by the Department of Elementary and Secondary Education (DESE) Office of Childhood.
The current chart, amended effective January 30, 2024, runs 1:4 for birth to 36 months (group of 8), 1:8 for groups of only 2-year-olds (16), 1:10 for 3- to 4-year-olds (20) and 1:16 for 5 and up (32).
Below: the full table, mixed-age and nap-time rules, who counts in ratio, home daycare capacity and a worked staffing example.
Verify before you rely on this
At a glance
The Missouri Department of Elementary and Secondary Education (DESE), Office of Childhood, under 5 CSR 25-500 (centers and group homes) and 5 CSR 25-400 (family homes).
1:4 with a maximum group of 8 for the birth-to-36-months band (infants, toddlers and 2-year-olds together); a group of only 2-year-olds runs 1:8.
1:4 with a maximum group of 8; toddlers share the birth-to-36-months band with infants and 2-year-olds.
1:10 with a maximum group of 20 in a group composed solely of 3- to 4-year-olds.
1:10 with a maximum group of 20 — age 4 stays inside the 3-to-4 band.
1:16 with a maximum group of 32 for groups composed solely of children 5 or older.
8 (birth to 36 months), 16 (2-year-olds only), 20 (ages 3 to 4) and 32 (5 and up).
Missouri ratio rules at a glance
- Naptime exceptionRequirement
Groups of children 2 and older need not keep the staff-to-child ratio inside the napping area, as long as the required ratio is maintained on the premises and group size still applies.
- Outdoor play exceptionRequirement
When no child 2 or younger is present in the outdoor play space, ratios may run at one and one-half times the indoor staff-to-child ratios during outdoor play.
- Clerical and housekeeping staffRequirement
Staff employed for clerical, housekeeping, cleaning or maintenance work do not count in ratio while performing those duties.
- Junior Aides (16 and 17)Requirement
Sixteen- and 17-year-olds may count only under the direct supervision of an adult in the same group — never as the sole caregiver and never toward an infant or toddler ratio.
- Directors at large centersRequirement
At a center with more than 50 children in attendance, the director is not counted in ratio except at naptime or as an emergency substitute.
Missouri center ratios and group sizes by age
| Age group | Staff-to-child ratio | Maximum group size |
|---|---|---|
| Infants, toddlers and 2-year-olds (birth to 36 months) | 1:4 | 8 |
| Groups composed solely of 2-year-olds | 1:8 | 16 |
| Groups composed solely of children 3 to 4 years old | 1:10 | 20 |
| Mixed group with up to 4 two-year-olds | 1:10 | 20 |
| Mixed group with more than 4 two-year-olds | 1:8 | 16 |
| Groups composed solely of children 5 years or older | 1:16 | 32 |
Age bands and group types are the rule's own (5 CSR 25-500.112, amended effective January 30, 2024); charts published before that amendment lack the mixed-group rows.
What are the daycare ratios in Missouri?
Missouri sets staff-to-child ratios and maximum group sizes in one table in 5 CSR 25-500.112, the center and group home rule the Department of Elementary and Secondary Education (DESE) Office of Childhood administers.
Amended effective January 30, 2024, the table reads: birth to 36 months — infants, toddlers and 2-year-olds — at 1:4 with a maximum group of 8; groups composed solely of 2-year-olds at 1:8 with a maximum of 16; groups composed solely of 3- to 4-year-olds at 1:10 with a maximum of 20; and groups composed solely of children 5 or older at 1:16 with a maximum of 32.
The same section prints mixed-group rows: a mixed group with up to 4 two-year-olds stays at 1:10 (20), and a mixed group with more than 4 two-year-olds drops to 1:8 (16).
Where a group's age makeup does not match a single row, read the full mixed-group table in 5 CSR 25-500.112 or confirm the reading with DESE.
Maximum group sizes by age
The group-size cap limits the number of children in the room or group itself, separately from the staff-to-child ratio, so adding a second caregiver does not enlarge the group.
Missouri caps groups at 8 in the birth-to-36-months band, 16 for groups composed solely of 2-year-olds, 20 for 3- to 4-year-olds and 32 for children 5 and older.
The mixed-group rows cap a group with up to 4 two-year-olds at 20 and a group with more than 4 two-year-olds at 16.
Both limits bind at once: a birth-to-36-months group at its cap of 8 cannot grow because a second caregiver joined the room.
Mixed-age and nap-time rules in Missouri
The table is keyed to a group's age makeup.
The birth-to-36-months band runs 1:4 with a group of 8, groups composed solely of 2-year-olds run 1:8 with a group of 16, and the mixed-group rows put a group with up to 4 two-year-olds at 1:10 (20) and a group with more than 4 two-year-olds at 1:8 (16).
Naptime relaxes the ratio for older rooms: groups of children 2 and older are not required to maintain the ratio within the napping area, though group size still applies and the required ratio must be maintained on the premises.
Outdoors, ratios may run at one and one-half times the indoor ratios during outdoor play when children 2 or younger are not present in the outdoor play space.
“During naptime, groups composed of children two (2) years old and older shall not be required to maintain staff/ child ratio within the napping area”
Who can count in ratio in a Missouri daycare?
Caregivers count in ratio at age 18.
Sixteen- and 17-year-olds — Junior Aides under the center rule — may count only under the direct supervision of an adult in the same group: never as the sole caregiver and never toward an infant or toddler ratio.
Staff employed for clerical, housekeeping, cleaning or maintenance work drop out of ratio while performing those duties, and a center with more than 30 children at meals needs separate meal staff under the same section.
At a center with more than 50 children in attendance, the director is not counted in ratio except at naptime or as an emergency substitute — a staffing constraint for large sites, since the director's hours cannot be planned into the floor count.
“Individuals employed for clerical, housekeeping, cleaning, and maintenance shall not be included in staff/child ratios while performing those duties.”
How many children can a home daycare have in Missouri?
Missouri law exempts from licensing anyone caring for six or fewer children, including no more than three under age two, at the same address; the caregiver's own school-age children are not counted.
Above that threshold, a family child care home may be licensed for up to 10 children and a group child care home for up to 20.
Family home caregivers must be 18 or older, and the provider must name at least one assistant to substitute or meet ratios and must be present at least 40 hours a week during peak attendance.
DESE's family home rule, 5 CSR 25-400, also sets caregiver-to-children limits by how many children are present and how many are under 2.
Our research could not confirm each row of that chart, so confirm the current in-home limits with DESE before staffing a home.
Staffing example for a typical Missouri center
Arithmetic on the current chart, as an illustration of the rule rather than a staffing plan.
A birth-to-36-months room of 8 takes two caregivers on the floor at 1:4, so two such rooms take four.
A 3- to 4-year-old room of 20 takes two at 1:10, and a school-age group of 32 takes two at 1:16 — eight ratio-counted caregivers across the building for 68 children.
At that attendance the director is not counted in ratio except at naptime or as an emergency substitute, and a center with more than 30 children at meals needs separate meal staff under the same section.
At nap, groups of children 2 and older may run below ratio inside the napping area while the required ratio stays on the premises; the birth-to-36-months rooms are not covered by that sentence, so confirm their nap staffing with DESE.
This is how the numbers convert to caregivers, not a finding that a schedule is compliant — DESE decides what a specific center's staffing must be.
When did Missouri last change its daycare ratios?
The current ratio and group-size chart took effect January 30, 2024, when DESE amended 5 CSR 25-500.112.
The amended table includes the mixed-group rows alongside the age bands; charts published before that date lack the mixed-group rows, which are the first thing to check against the rule.
When a chart and the rule text disagree, the rule in 5 CSR 25-500 is what governs, and DESE's Office of Childhood administers it.
What This Page Does, and Doesn’t, Cover
This page summarizes the Missouri licensing rules, agency pages and other sources listed below, as read for this state-by-state staff-to-child ratios series, current as of October 2026. It is not a substitute for the instructions the Missouri Department of Elementary and Secondary Education (DESE), Office of Childhood publishes. For the rest of the picture in Missouri, see daycare teacher requirements in Missouri and daycare licensing steps in Missouri.
Frequently Asked Questions
What is the infant teacher-to-child ratio in Missouri?
Missouri staffs the birth-to-36-months band — infants, toddlers and 2-year-olds together — at 1:4 with a maximum group of 8, so an infant or toddler room of 8 has two caregivers and each is responsible for 4 children.
A group composed solely of 2-year-olds runs at 1:8 with a group of 16.
These figures date to the January 30, 2024 amendment of 5 CSR 25-500.112.
Can a 16-year-old count in ratio at a Missouri daycare?
Only in a limited role.
The center rule allows 16- and 17-year-old Junior Aides to count under the direct supervision of an adult in the same group, but never as the sole caregiver and never toward an infant or toddler ratio.
Caregivers who count in ratio on their own must be 18 or older.
Do Missouri daycare ratios apply during nap time?
Not inside the napping area for older rooms.
During naptime, groups of children 2 and older are not required to maintain the staff-to-child ratio within the napping area, as long as the required ratio is maintained on the premises and group size still holds.
Rooms that include children under 2 are not covered by that sentence, so centers confirm their nap staffing with DESE.
What are the ratios for an in-home daycare in Missouri?
Family child care homes are licensed for up to 10 children and group child care homes for up to 20, with caregivers at least 18.
Missouri law exempts care for six or fewer children, including no more than three under age two, from licensing.
DESE's family home rule sets caregiver limits by headcount and under-2 count, but our research could not confirm each row of that chart, so check the current numbers with DESE.
Does a Missouri daycare director count in the ratio?
At a center with more than 50 children in attendance, the director is not counted in ratio except at naptime or as an emergency substitute, under 5 CSR 25-500.112(2).
How the rule treats a director at a site of 50 or fewer children is not covered in our research; ask DESE's Office of Childhood for the reading that fits your center.
More Missouri Resources
Sources
- Missouri 5 CSR 25-500 — child care centers and group child care homes (rule text) (retrieved 2026-10-05)
- Missouri 5 CSR 25-400 — family child care homes (rule text) (retrieved 2026-10-05)
- Missouri Revised Statutes 210.211 (licensing exemption for small family child care) (retrieved 2026-10-05)
Sourced from the documents listed above. Verified October 2026. This is career and employer information, not licensing or legal advice. Confirm current rules with the Missouri Department of Elementary and Secondary Education (DESE), Office of Childhood.