Daycare ratios are the staff-to-child counts your state's licensing rules set for each age, and they are one of the few claims in child care marketing a family can actually check.
It is the numbers chapter of our guide to daycare advertising rules: the rules state by state, the benchmarks, and how to state yours without overclaiming.
What the ratio rules say
Child care ratios are set by state licensing rules, not by any national standard.
There is no current federal count of state ratio ranges; the only federal scan is an Administration for Children and Families webinar deck from 2011, so a "national average ratio" figure has no current basis.
States write their own numbers into licensing rules, as children per teacher with a maximum group size, tighter for younger children.
Exceptions exist inside states too: Maryland lets a Department-approved Montessori school exceed ratio or group size by up to one-third (COMAR 13A.16.08.03), a Maryland-only rule.
Daycare ratios by state
These center ratios come from each state's rules as of October 2026; age bands differ, so compare like for like.
Texas sets center ratios in its minimum standards (26 TAC 746.1601, for operations with 13 or more children), stepping from 1:4 for infants 0-11 months through 1:11 for 2-year-olds, 1:15 for 3-year-olds and 1:18 for 4-year-olds to 1:26 for ages 6-13 (Texas HHSC).
Florida sets its center ratios in statute (s. 402.305(4), F.S.): 1:4 from birth through age 1, 1:11 for 2-year-olds, 1:20 for 4-year-olds and 1:25 for age 5 and older.
Elsewhere:
- California (22 CCR 101216.3 and 101416.5): infant centers 1 teacher per 4 infants; preschool centers 1 teacher per 12, or 1 teacher plus 1 aide per 15.
- New York (18 NYCRR 418-1.8): 1:4 for 6 weeks to 18 months, 1:7 (18) for 3-year-olds, 1:8 (21) for 4-year-olds.
- Illinois (23 Ill. Adm. Code 2008): infants 1:4 (12), twos 1:8 (16), threes and fours 1:10 (20), school-age 1:20 (30).
- Pennsylvania (55 Pa. Code 3270.51): infants 1:4 (8), preschool 1:10 (20), older school-age 1:15 (30).
- Ohio (OAC 5101:2-12-18 Appendix A): young infants 1:5 or 2:12 (12), 3-year-olds 1:12 (24), 4-year-olds 1:14 (28).
- Georgia (Rule 591-1-1-.32): infants 1:6 (12), 2s 1:10 (20), 3s 1:15 (30), 4s 1:18 (36).
- North Carolina (10A NCAC 09 .0713): 1:5 for 0-12 months, 1:6 for 12-24 months, 1:10 for 2-3 years, 1:15 for 3-4 years, 1:20 for 4-5 years; a 2025 state law conflicts on infant and toddler group sizes, so those counts are not settled.
- Michigan (R 400.8222, effective May 7, 2025): 1:4 for birth through 30 months (12), 1:10 for 3-year-olds, 1:12 from age 4 to school age (40), 1:18 school-age (54).
Where rooms mix ages, the youngest child usually sets the ratio in Pennsylvania, Illinois, Ohio, Michigan and North Carolina, while Florida and Georgia use the largest age group or the youngest group above 20% of the children (Georgia's version: centers licensed for 19 or more).
Count from the room mix you actually run, not the age on the door.
The benchmarks: CFOC and NAEYC
Caring for Our Children recommends in standard 1.1.1.2: 3:1 with a maximum group of 6 for children 12 months and younger, 4:1 (8) for ages 13-35 months, 7:1 (14) for 3-year-olds and 8:1 (16) for 4- and 5-year-olds.
CFOC is a recommendation, not law.
NAEYC's accreditation materials suggest 1:4 (class up to 8) for infants birth through 15 months, 1:6 (12) for toddlers and twos and 1:10 (20) for preschool 30 months to 5 years, suggested ranges from its earlier accreditation system.
For 4-year-olds the gap is the story: CFOC recommends 1:8, NAEYC suggests 1:10, while licensing minimums sit far higher in many large states: Texas and Georgia 1:18, Florida and North Carolina 1:20 (4-5 years), Michigan 1:12, Ohio 1:14, Illinois and Pennsylvania 1:10, and New York 1:8, already equal to CFOC.
Children per teacher in a 4-year-old room
Ratios, capacity and cost
Your ratios and group sizes set the licensed seats in each room, and with them how many children you can enroll.
Cost follows: the Center for American Progress' 2018 cost model of licensed centers found the workforce is the largest expense at 60-80% of program expenses, and per-child cost falls as children get older largely because older children allow higher ratios and larger groups; the staffing side is the staffing and enrollment capacity question.
Teacher child ratio marketing: wording the claim
A ratio claim is only verifiable when it names the age group and is compared to your state's licensing ratio for the same band (editorial guidance, not a legal rule); "low ratios" with no age attached cannot be checked by anyone.
A Texas 4-year-old room at 1:10 is below Texas' 1:18 minimum and matches NAEYC's suggested 1:10, a specific, checkable sentence.
If you state your ratio as a promise, keep it at every hour: states often relax ratios at opening, closing and nap, and Texas, Pennsylvania and Georgia have such adjustments in their standards.
Never write "the lowest ratios in [city]" without proof, and never present CFOC or NAEYC numbers as law.
Where ratio claims sit
- Low ratios
- Lowest ratios in [city]
- 1:10 fours, below the state 1:18
A ratio claim that holds up
- Names the age group: "1:10 in our 4-year-old room."
- Names the comparison: below Texas' 1:18 minimum.
- Holds what an inspector would count, at any hour.
One that falls apart
- "Low ratios," no age attached.
- A CFOC or NAEYC number presented as your state's rule.
- "Lowest ratios in [city]" with nothing behind it.
The claim carries weight: Bright Horizons' 2025 Form 10-K says many competitors offer lower prices by using less intensive ratios and lower compensation, the chain's own framing.
Where the claim lives is the daycare website trust signals question.
Ohio's quality rating gives ratios a shorthand: Step Up To Quality now awards Bronze, Silver or Gold under OAC Chapter 5180:2-17, not stars, and Gold requires 40% of a center's classrooms to meet lower ratios and group sizes than licensing requires, so Gold does not mean every classroom is below licensing.
Rating and accreditation wording rules are at QRIS ratings and marketing and NAEYC accreditation marketing.
Advertising low ratios
Ratios are not the only rules an ad touches: Florida bars anyone from advertising a child care facility, family child care home or large family child care home unless the ad includes the state or local license or registration number, and a violation is a first-degree misdemeanor (s. 402.318, F.S., current through the 2026 amendments).
The statute says "advertisements" without listing media types, so how it reaches each channel is a question for Florida DCF or counsel.
South Carolina requires registered family child care homes and registered church or religious programs to state their registration number in all advertisements (S.C. Code 63-13-830, 63-13-1030).
Those are two states' rules, not a pattern; the daycare advertising rules guide has the full picture.
Ratio rules are state rules, and they change: before a ratio goes into a tour script, a program page or an ad, confirm the current numbers with your state licensing agency.
Frequently asked questions
Is there a national staff-to-child ratio for daycare?
No. States set ratios by age and group size, and the most recent federal scan of state ranges dates to 2011, so your state's rule governs.
What ratio applies in a mixed-age room?
In Pennsylvania, Illinois, Ohio, Michigan and North Carolina, the youngest child in the group sets the ratio; Florida and Georgia differ. Claim the ratio that applies to your room mix.
Do NAEYC or CFOC ratios override state licensing ratios?
No. CFOC standard 1.1.1.2 and NAEYC's chart are recommendations; state licensing rules set the requirements.
What does Ohio's Gold rating mean for ratios?
Gold requires 40% of a center's classrooms to meet lower ratios and group sizes than licensing requires; it does not mean every classroom is below licensing, and Ohio awards Bronze, Silver and Gold, not stars.