94548 ZIP Code

Questions about 94548

What city is ZIP code 94548 in?+

94548 is associated with Knightsen, California in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.

What county is 94548 in?+

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

What timezone is 94548 in?+

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

Is 94548 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.