Maryland · Montgomery

20878 ZIP Code

20878 is associated with Gaithersburg, Maryland. The page shows the county, timezone, nearby ZIPs and links to the state hub for a nearby city generator.

ZIP details

ZIP code: 20878
City: Gaithersburg
State: Maryland (MD)
County: Montgomery
Timezone: America/New_York
State sales tax: Varies by state

Open map Maryland hub

Nearby ZIP codes

20877Gaithersburg, MD 20879Gaithersburg, MD 20876Germantown, MD 20880Washington Grove, MD 20875Germantown, MD 20874Germantown, MD 20882Gaithersburg, MD 20883Gaithersburg, MD

Questions about 20878

What city is ZIP code 20878 in?+

20878 is associated with Gaithersburg, Maryland in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.

What county is 20878 in?+

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

What timezone is 20878 in?+

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

Is 20878 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