Idaho writes its ratio as a point budget in Idaho Code 39-1109(4), amended in 2025. A licensed daycare facility may carry at most twelve points per staff member: each child under twenty-four months counts two points, each child from twenty-four to under thirty-six months 1.33, each child from thirty-six months to under five years 0.923, and each child from five to under thirteen 0.48. Each child in attendance is counted. Six infants fill one staff member exactly; nine two-year-olds come to 11.97; and thirteen preschoolers or twenty-five school-age children would reach twelve points, above the twelve-child ceiling of a group daycare facility, so capacity binds first for older groups. At least one adult employee must be present whenever a child is in attendance.
Every tier, every cap
Family Daycare Home
No more than 6 children in care at once Idaho Code § 39-1114(3) (Limited applications)
Point budget: at most 12 points per caregiver (under 24 months 2, 24 to under 36 months 1.33, 36 months to under 5 years 0.923, 5 to under 13 years 0.48; older children 0) Idaho Code § 39-1109(4)(a) (as amended 2025, ch. 185 and ch. 186)
Your own children: do not count toward the unrelated caps.
Group Daycare Facility
No more than 12 children in care at once Idaho Code § 39-1102(9)
Point budget: at most 12 points per caregiver (under 24 months 2, 24 to under 36 months 1.33, 36 months to under 5 years 0.923, 5 to under 13 years 0.48; older children 0) Idaho Code § 39-1109(4)(a) (as amended 2025, ch. 185 and ch. 186)
Your own children: do not count toward the unrelated caps.
How Idaho defines the age bands
Under 24 months: 0 to 24 months
24 months to under 36 months: 24 to 36 months
36 months to under 5 years: 36 to 60 months
5 years to under 13 years: 60 to 156 months
Mixed ages in one room
Under twenty-four months is the heaviest band at two points. The budget applies to licensed facilities, so a family daycare home of six feels it only if it elects the license.
Real questions, short answers
How many children under two can one Idaho staff member have?
Six, at two points each against the twelve-point maximum in Idaho Code 39-1109(4)(a).
When does an Idaho group daycare facility need a second staff member?
When the points of the children in attendance pass twelve, for example three infants plus five two-year-olds, which comes to 12.65.
Is there a separate infant rule in Idaho?
No separate cap. The two-point weight for a child under twenty-four months is the infant rule, and 39-1109(4)(c) lets a facility run stricter ratios.
Idaho Code Title 39, Chapter 11, Basic Day Care License, sections as displayed on legislature.idaho.gov with 2025 amendments 39-1102, 39-1103, 39-1105, 39-1109, 39-1114
IDAPA 16.06.03, Daycare Licensing, codified chapter with July 1, 2024 stamps; proposed rewrite in the July 2, 2025 bulletin, docket 16-0603-2501 IDAPA 16.06.03.009, 16.06.03.121
DaycareRules is an informational reference about home child care licensing rules in the United States. It reprints thresholds, capacity limits, ratios and citations from state statutes and regulations, together with the date each state was last verified. Nothing on this site is legal advice, and rules change. Confirm with your state licensing agency before acting on any number printed here.