According to the Iowa Department of Human Services there is no law which defines the age at which a child may be left home alone. Instead the Department of Human Services conducts investigations of "denial of critical care" and whether there is a "denial of critical care" depends on a variety of circumstances. The following is quoted from the Department of Human Services Website (scroll down to "denial of critical care").
The Department of Human Services receives many inquiries each year regarding when a child can be left home alone safely. Iowa law does not define an age that is appropriate for a child to be left alone. Each situation is unique. Examples of questions to help determine whether there are safety concerns for the child include:
I hope this answers your question.
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