New Castle County · Delaware
Wilmington, DE area codes and time zone
Quick answer
Wilmington is served by area codes 302, 484, 610, keeps EST time (GMT-4), and sits in county FIPS 10003.
- Area codes
- 302 · 484 · 610Within 25 miles of the city centre
- Time zone
- ESTAmerica/New_York
- UTC offset
- GMT-4EDT in summer
- County FIPS
- 10003New Castle County
Dialling from and to Wilmington
What this means when you pick up the phone.
Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.
More on Wilmington
Other reference data for this city.