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-5), 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-5EDT in summer (UTCGMT-4)
- 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.
How Wilmington came to have several area codes
Why one city can carry several codes.
Area codes are assigned to geography, then exhausted as demand grows. Wilmington — population about 71k — is covered by codes 302, 484, 610, drawn from within 25 miles of the city centre. Because these 3 codes serve the same footprint, they are overlays: the number pool ran low and a new code was layered on top rather than splitting the city apart. All ten digits are required for every local call.
More Wilmington data
Other Wilmington datasets on this site.
- Wilmington population and income
- Wilmington sales tax rate
- Wilmington property tax
- Wilmington cost of living
- Wilmington home values and rent
- Wilmington crime rates
- Wilmington public schools
- Wilmington weather normals
- Wilmington commute times
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