Colorado · Boulder
80503 ZIP Code
80503 is associated with Longmont, Colorado. The page shows the county, timezone, nearby ZIPs and links to the state hub for a nearby city generator.
ZIP details
- ZIP code
- 80503
- City
- Longmont
- State
- Colorado (CO)
- County
- Boulder
- Timezone
- America/Denver
- State sales tax
- Varies by state
Questions about 80503
- 80503 is associated with Longmont, Colorado in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.
- Boulder. County boundaries and postal areas are not the same thing; a ZIP can serve addresses in more than one county.
- America/Denver. This is the IANA timezone name for the city associated with the ZIP.
- It appears in the public city dataset bundled with this site. That confirms the format and city association, not that a specific street, mailbox, or resident exists.