New Mexico Daycare Ratios: Staff-to-Child Ratios and Group Sizes by Age
New Mexico daycare ratios are set in 8.16.2 NMAC: licensed child care centers staff one educator to 6 infants, 1:6 for toddlers, 1:10 for two-year-olds, 1:12 for three- and four-year-olds, and 1:15 for five and older, with maximum group sizes of 12 to 30 children.
A group's ratio follows the age of the majority of the children in it, and at least 2 staff members must be present whenever children are there, one of them an educator.
The Early Childhood Education and Care Department (ECECD) administers the rule.
Verify before you rely on this
At a glance
The Early Childhood Education and Care Department (ECECD), through the Regulatory Oversight Unit of its Child Care Services Bureau.
One educator to 6 infants, with a maximum group of 12 infants.
One educator to 6 toddlers, with a maximum group of 12 toddlers.
One educator to 12 three-year-olds; three- and four-year-olds share one band.
One educator to 12 four-year-olds, with a maximum group of 24 children.
One educator to 15 children five and older, with a maximum group of 30 children.
Maximum groups of 12 infants or toddlers, 20 two-year-olds, 24 three- and four-year-olds, and 30 children five and older.
New Mexico ratio rules at a glance
- Child care centerLicense
Licensed by ECECD under 8.16.2 NMAC; each room follows the age-band ratio and group-size table below.
- Family child care homeLicense
Licensed for 5 to 6 children; the licensee lives in the home and is the primary educator.
- Group child care homeLicense
Licensed for 7 to 12 children; at least 2 educators are required whenever more than 6 children, or more than 2 children under age 2, are present.
- Registered homeRegistration
ECECD also registers smaller homes; this research did not confirm the registration threshold or its staffing rules, so check with ECECD.
New Mexico center ratios and group sizes by age
| Age group | Staff-to-child ratio | Maximum group size |
|---|---|---|
| Infants | 1:6 | 12 |
| Toddlers | 1:6 | 12 |
| Two-year-olds | 1:10 | 20 |
| Three- and four-year-olds | 1:12 | 24 |
| Five and older | 1:15 | 30 |
Age bands are New Mexico's own under 8.16.2.23 NMAC; a group that mixes them follows the mixed-age rows and the majority-age rule described below.
What are the daycare ratios in New Mexico?
New Mexico sets center ratios in 8.16.2.23 NMAC, which the Early Childhood Education and Care Department (ECECD) administers.
Licensed centers staff one educator to 6 infants, one to 6 toddlers, one to 10 two-year-olds, one to 12 three- and four-year-olds, and one to 15 children five and older.
Two staffing rules frame the whole table: a group's ratio and group size follow the age of the majority of the children in it, and every center must have at least 2 staff members present whenever children are there, at least one of them an educator.
Maximum group sizes by age
Each ratio band carries its own maximum group size: 12 infants, 12 toddlers, 20 two-year-olds, 24 three- and four-year-olds, and 30 children five and older.
The ratio and the group size are two separate limits the rulebook sets for the same band, so a room reads both numbers from its row.
For groups that mix age bands, the mixed-age rows below set their own ratio and group size.
Mixed-age and nap-time rules in New Mexico
The rulebook sets rows for mixed-age groups: ages 6 weeks through 24 months at 1:6 with a maximum group of 12, ages 2 through 4 at 1:12 with a group of 24, ages 3 through 5 at 1:14 with a group of 28, and ages 6 and up at 1:15 with a group of 30.
Where a group's ages span rows, centers set the ratio and group size by the age of the majority of the children in the group.
Nap time is the open question: our research did not surface a nap-time ratio provision in the sections of the rulebook we read, so a center's nap supervision arrangements are a question for ECECD.
“based on the age of the majority of children in the group.”
Who can count in ratio
New Mexico licensing calls classroom staff educators, and an educator counted in ratio must be at least 18 years old.
The rule states no diploma minimum for the role, and licensing sets no separate lead and assistant tiers: everyone in the classroom is an educator.
Two more rules shape staffing.
Every center as a whole must have at least 2 staff members present whenever children are there, at least one of them an educator, and a child may have no more than three primary, consecutive educators in any day — a cap on how often the educators working with one child can change.
“A child will have no more than three primary, consecutive educators in any day”
Home daycare capacity in New Mexico
Homes follow their own counts, not the center table above.
ECECD licenses a family child care home for 5 to 6 children and a group child care home for 7 to 12, with the licensee living in the home as the primary educator.
A home that cares for 3 or 4 children under age 2 must be specifically licensed for it and must have 2 educators present.
A group home licensed for 7 to 12 children needs at least 2 educators whenever more than 6 children, or more than 2 children under age 2, are present.
ECECD also registers smaller homes; our research did not confirm the registration threshold, so check with the agency.
Staffing example for a typical center
The table converts directly into headcount.
An infant room at the maximum group of 12 needs 2 educators on the floor at 1:6.
A room of 20 two-year-olds needs 2 educators at 1:10, a room of 24 three-year-olds needs 2 at 1:12, and a room of 30 children five and older needs 2 at 1:15.
Mixed ages change the arithmetic: a mixed room of ages 3 through 5 at its maximum group of 28 needs 2 educators at 1:14.
Separately from any one room's ratio, the center as a whole must have at least 2 staff members present whenever children are there, one an educator, so a schedule also has to cover that building-level minimum.
These are illustrations of the arithmetic, not a review of any center's schedule.
School-age ratios in New Mexico
The center rows our research read run from infants to five and older, with no band labeled school-age among them: children five and older count at 1:15 with a maximum group of 30, and that is the band school-age children fall into.
Our research did not surface a separate school-age ratio table in the sections of the rulebook we read, so confirm the staffing for a before- and after-school program with ECECD.
Recent changes to New Mexico's child care rules
New Mexico's current child care licensing rulebook replaced the prior rule on 10/1/2016, and its personnel sections were last amended effective 1/1/2022.
Figures copied from older ratio charts may not match the current table, so confirm the numbers you staff to with ECECD.
What This Page Does, and Doesn’t, Cover
This page summarizes the New Mexico 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 Early Childhood Education and Care Department (ECECD), Child Care Services Bureau, Regulatory Oversight Unit publishes. For the rest of the picture in New Mexico, see daycare teacher requirements in New Mexico and daycare licensing steps in New Mexico.
Frequently Asked Questions
What is the infant ratio in New Mexico?
One educator to 6 infants in a licensed New Mexico center, with a maximum group size of 12 infants.
The mixed-age row for groups of 6 weeks through 24 months uses the same figures.
The ratio comes from 8.16.2.23 NMAC, which the Early Childhood Education and Care Department administers, so confirm the current figure with ECECD before you build a staffing plan on it.
How many kids can one teacher have in a New Mexico daycare?
It depends on the age band: 6 infants or toddlers, 10 two-year-olds, 12 three- and four-year-olds, or 15 children five and older.
The group's ratio follows the age of the majority of the children in it.
Age is not the only limit — a New Mexico center must have at least 2 staff members present whenever children are there, so a second adult is on site even when the ratio alone would allow one educator.
Can one staff member cover a nap room in a New Mexico center?
Our research did not surface a nap-time ratio provision in the sections of New Mexico's rulebook we read, so this page cannot say one way or the other.
Nap supervision is a staffing question a center should settle with the Early Childhood Education and Care Department before counting a single educator in a sleeping room.
How many children can a home daycare have in New Mexico?
ECECD licenses a family child care home for 5 to 6 children and a group child care home for 7 to 12.
A group home needs at least 2 educators whenever more than 6 children, or more than 2 children under age 2, are present, and a home caring for 3 or 4 children under age 2 must be licensed specifically for it with 2 educators.
Smaller homes can be registered with ECECD; the registration threshold was not established in our research.
How old do you have to be to count in ratio at a New Mexico daycare?
At least 18.
New Mexico licensing calls classroom staff educators, and an educator counted in ratio must be 18 or older, with no diploma minimum stated in the rule.
Centers must also keep at least 2 staff members present whenever children are there, and each child is limited to no more than three primary, consecutive educators in any day.
More New Mexico Resources
Sources
- New Mexico Child Care Center Licensing Rules (New Mexico Administrative Code) (retrieved 2026-10-05)
- New Mexico Early Childhood Education and Care Department — Child Care Licensing (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 Early Childhood Education and Care Department (ECECD), Child Care Services Bureau, Regulatory Oversight Unit.