$18-20 an hour HCOL and three kids (one is fifth grade and no babies). We round up and usually tip as they are usually good about straightening up too. This is for a college grad who is a nanny or certified teacher or our nanny who has child development 4 year degree. Just recently we had one high school senior sit a couple of times when we've fone to dinner, and she was good and we paid her the same rate and she was thrilled.