The boundaries of Littleton's city limits, like many cities, are irregular and don't always follow landmarks such as paved streets. The map below shows the boundaries of the Littleton city limits. To check whether an individual address is in the city limits, use the Address Wizard.
Just because the mailing address says "Littleton" doesn't always mean the address is within the Littleton city limits. Check out the Littleton ZIP Codes to find out why.