Licensing rules · New Jersey
Daycare ratios in New Jersey
In a New Jersey daycare center, one adult may care for up to 4 babies, 6 children at 18 months, 10 three-year-olds or 12 four-year-olds. A room of babies may hold no more than 12, and groups from 18 months through age 5 are capped at 20.
- Babies (6 weeks)
- 1:4
- Toddlers (18 months)
- 1:6
- 3-year-olds
- 1:10
- 4-year-olds
- 1:12
Daycare centers
Ratios and group sizes in New Jersey centers
The most children one adult may care for, and the largest group allowed in one room, at each age. From New Jersey's licensing rules as compiled in the 2025 national database.
| Child's age | Adults to children | Largest group |
|---|---|---|
| 6 weeks | 1:41 adult for 4 children | 12 children |
| 11 months | 1:41 adult for 4 children | 12 children |
| 18 months | 1:61 adult for 6 children | 20 children |
| 35 months | 1:101 adult for 10 children | 20 children |
| 3 years | 1:101 adult for 10 children | 20 children |
| 4 years | 1:121 adult for 12 children | 20 children |
| 5 years | 1:151 adult for 15 children | 20 children |
| 6 years | 1:151 adult for 15 children | 30 children |
| 7 years | 1:151 adult for 15 children | 30 children |
| 8 to 9 years | 1:151 adult for 15 children | 30 children |
| 10 years and older | 1:151 adult for 15 children | 30 children |
The national database reads each state's rule at these sample ages; New Jersey's own rules give the exact age bands.
In the room
What the ratio means for your child
A ratio is the largest number of children one adult may care for at the same time. With babies at 1:4, a full infant room of 12 needs at least 3 caregivers. At 18 months the ratio is 1:6, so a toddler group at the limit of 20 needs at least 4 adults, and a group of 20 four-year-olds at 1:12 needs 2.
The ratio is a minimum, not a staffing plan. The times to watch are opening, closing and staff breaks, when fewer adults are in the room. On your tour, count the adults and the children in the room, and ask how the center keeps to the ratio on the playground and at nap time.
New Jersey's rules cover mixed-age groups; ask the daycare which ratio it follows when ages mix.
Home daycares
Rules for home daycares in New Jersey
For home daycares in New Jersey, the national database of state licensing rules lists no licensing rules for either a single-provider home or a larger group home. That does not tell you what rules a given home follows.
If you are looking at a home daycare, ask whether it is registered or approved by the state, how many children it cares for at once, how many are babies, and who covers when the provider steps away.
- As the national database records them
- Family child care home (one provider): no licensing rules listed for this setting in New Jersey.
- Group child care home (two or more providers): no licensing rules listed for this setting in New Jersey.
Enforcement
How New Jersey checks these rules
- Centers: New Jersey reported routine inspections once a year, without notice.
Inspection schedules are from a 2017 national survey of state licensing agencies.
On the tour
Ask about ratios on a tour
- of the 1,620 New Jersey daycare websites we read post a staff-to-child ratio
- 2.3%
- How many adults are in my child's room, and how many children?
- How do staff keep track of every child during outdoor play, nap and pick-up?
- Who may pick up my child, and how do you check?
- Is the ratio the same at the start and end of the day, when fewer staff are in?
More questions: the daycare tour checklist.
Questions
Questions about daycare ratios in New Jersey
What is the infant ratio for daycare centers in New Jersey?
1:4. One adult may care for up to 4 babies, and a room of babies may hold no more than 12.
What is the toddler ratio in New Jersey?
1:6 at 18 months and 1:10 at 35 months, just before age 3, with groups of up to 20 children at both ages.
What is the ratio for 4-year-olds in New Jersey daycares?
1:12, with up to 20 children in a group. For 3-year-olds it is 1:10, also with up to 20 in a group.
How many children can a New Jersey home daycare have?
The national database of state licensing rules lists no licensing rules for New Jersey home daycares, so ask each home how many children it cares for at once and whether it is registered with the state.
How do I check whether a daycare keeps to the ratio?
Count the adults and children in the room on your tour, at a busy time if you can. Only 2.3% of the New Jersey daycare websites we read post their ratios, so ask the director directly.
Rules change. Before you rely on a number here, check New Jersey's current licensing rules or ask the state licensing agency.
Source: National Database of Child Care Licensing Regulations, Office of Child Care, Administration for Children and Families (licensingregulations.acf.hhs.gov), 2025 tables, retrieved October 7, 2026. Website figure: daycare websites read in 2026.