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How old does a child have to be to stay home alone in Montana?

Montana doesn’t set a minimum age for staying home alone, and we found no official guidance that gives one. What matters is whether the arrangement is reasonable for the child’s age, maturity and situation.

No set age

The rule in Montana

No law found. Montana DPHHS’s own pamphlet says there is no set age; parents decide based on the child and the situation.

Source: Montana DPHHS Child and Family Services, "Is Your Child Ready to be Home Alone?" (pamphlet)

Checked October 15, 2026. Laws change, and this isn’t legal advice: your local child protection office can tell you how they see it.

What safety experts suggest, by age

Wherever you live, the Canada Safety Council’s guide is a useful yardstick. It suggests not leaving a child alone before 10, and then building up slowly:

AgeHow long, at most
Under 10Not alone
10–12Up to two hours, with a responsible adult nearby
13–14Up to five hours, with an adult reachable by phone
15–16A whole day, with a parent reachable by phone

Age is only half of it. A child who wants to, follows rules when you’re out, stays calm when something goes wrong and can always reach an adult is ready sooner than one who isn’t. Our guide to how old a child should be to stay home alone has a readiness checklist and how to set up the after-school routine.

The days that don’t fit the routine

Home alone after school works until it doesn’t: a sore throat, an early dismissal, practice across town at 4:30. Those are the days nobody thinks about cover until 2:45. In Kid Pickup you post the pickup, someone in your circle taps I’ll do it, and if nobody has it the app sends you a nudge with time to sort it out.

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FAQ

Questions about Montana

What is the legal age to stay home alone in Montana?

Montana doesn’t set a minimum age for staying home alone, and we found no official guidance that gives one. What matters is whether the arrangement is reasonable for the child’s age, maturity and situation.

Can a 10-year-old stay home alone in Montana?

No law in Montana settles it by age. Safety guidance from the Canada Safety Council suggests not before 10, and then for up to about two hours, with a responsible adult nearby.

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