Maryland · Caroline
21640 ZIP Code
21640 is associated with Henderson, Maryland. The page shows the county, timezone, nearby ZIPs and links to the state hub for a nearby city generator.
ZIP details
- ZIP code
- 21640
- City
- Henderson
- State
- Maryland (MD)
- County
- Caroline
- Timezone
- America/New_York
- State sales tax
- Varies by state
Questions about 21640
- 21640 is associated with Henderson, Maryland in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.
- Caroline. County boundaries and postal areas are not the same thing; a ZIP can serve addresses in more than one county.
- America/New_York. 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.