Littleton is the town where the Peterson family lives.
- Lucky Dog Books- A booskstore where Buddy's mother, Skipper lives with Jerry Small.
- Littleton Fire Department- Where Paul Peterson works.
- Littleton News Office- Betsy Peterson's workplace and where the paper is published.
- Littleton Elementary- Where Lizzie, Charles, Sammy, David, Maria, and other kids go to school.
- Caring Paws- The local animal shelter and where Lizzie volunteers.
- Penny's Place- The Bean's daycare center where Molly lives.
- The Peterson's
- The Santiago's
- Sammy's Family
- David's Family
- Luke's Family
- The Drake's
- Briana's Family
- Tank's House
- Pixie and Pogo's House