Maryland · Frederick

21758 ZIP Code

21758 is associated with Knoxville, Maryland. The page shows the county, timezone, nearby ZIPs and links to the state hub for a nearby city generator.

ZIP details

ZIP code: 21758
City: Knoxville
State: Maryland (MD)
County: Frederick
Timezone: America/New_York
State sales tax: Varies by state

Open map Maryland hub

Nearby ZIP codes

21757Keymar, MD 21759Ladiesburg, MD 21756Keedysville, MD 21755Jefferson, MD 21754Ijamsville, MD 21762Libertytown, MD 21765Lisbon, MD 21750Hancock, MD

Questions about 21758

What city is ZIP code 21758 in?+

21758 is associated with Knoxville, Maryland in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.

What county is 21758 in?+

Frederick. County boundaries and postal areas are not the same thing; a ZIP can serve addresses in more than one county.

What timezone is 21758 in?+

America/New_York. This is the IANA timezone name for the city associated with the ZIP.

Is 21758 a real ZIP code?+

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.

All ZIP codes Validate a full address