Which age group requires one staff member for every 20 children?

• A. Birth through 1 year
• B. 1 year to under 2
• C. 4 years to under 5
• D. 3 to under 4

Answer: (C)

Staff-to-child ratios by age group are set to keep children safe and well-supervised. Younger children need more hands-on attention, so the ratio is tighter, while older preschoolers can participate more independently, allowing more children per adult. For 4-year-olds to under 5, the typical licensed ratio is one staff member for up to 20 children, which is why this age group matches the 1:20 requirement. By contrast, younger ages require smaller groups per adult—for example, infants in the range of birth through 1 year often need about 1:4, and 1 year to under 2 around 1:6, with 3 to under 4 often around 1:10 or 1:12. This context shows why the 4-to-under-5 group fits the 1:20 ratio.