Littleton, Colorado ZIP Codes
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This is the complete guide to Littleton, Colorado ZIP codes — all 16 codes in one place, from 80120 to 80166. If you have been searching for the zip code of Littleton Colorado USA, the full list below covers every delivery area in the city.
Littleton lies primarily in Arapahoe County, Colorado. Because ZIP codes follow mail delivery routes rather than neighborhood lines, different parts of Littleton use different codes. The list below is sorted numerically, and our free tools can pinpoint the exact ZIP code — including the ZIP+4 add-on — for any Littleton address.
Complete List of Littleton ZIP Codes
All 16 littleton zip codes, sorted from lowest to highest (80120 to 80166):
About Littleton ZIP Codes
Littleton is served by 16 ZIP codes (80120–80166). USPS draws ZIP code boundaries around delivery routes, so a code can cover a compact downtown district, a spread-out suburb, or a single high-volume mailer.
Most of Littleton sits in Arapahoe County, though parts of the city reach into Douglas, Jefferson. That is one reason ZIP codes here do not stop at the city limit — a Littleton mailing address can sit in a neighboring county and still carry a Littleton ZIP code.
Mailing to Littleton? Using the correct ZIP code — and the ZIP+4 add-on where it matters — keeps letters and packages moving without delays or returns. Before you send, you can confirm any Littleton address with our free Address Verification tool, and find the full 9-digit code with the ZIP+4 Lookup.
How to Find Your Littleton ZIP Code
Enter a Littleton street address to get its exact 5-digit ZIP code instantly.
Look up Littleton, Colorado to see the full list of ZIP codes used across the city.
Explore ZIP codes for every covered city in Colorado on the state page.
Frequently Asked Questions
How many ZIP codes does Littleton have?
Littleton has 16 ZIP codes, ranging from 80120 to 80166. The complete list is on this page.
What is the ZIP code of Littleton, Colorado?
There is no single ZIP code for Littleton — the city uses 16 ZIP codes (80120 to 80166). Enter your street address in our ZIP Code by Address tool to find your exact one.
What county is Littleton, Colorado in?
Littleton is primarily in Arapahoe County, Colorado, and also extends into Douglas, Jefferson.
What is the ZIP code range for Littleton?
ZIP codes in Littleton start at 80120 and go up to 80166. Codes are assigned by delivery area, so the lowest codes generally sit closest to the city center and rise as you move outward.
Why does Littleton have 16 different ZIP codes?
The Postal Service creates a new ZIP code whenever a delivery area grows too large for one code to handle efficiently. A city the size of Littleton has many delivery routes — neighborhoods, business districts, and high-volume mailers each need their own code so mail can be sorted and delivered accurately.
How do I find my ZIP+4 code in Littleton?
Use our free ZIP+4 Lookup tool — enter your Littleton street address to get the full 9-digit code.
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