Area Code 240
Maryland (MD) • Silver Spring, Bethesda, Frederick, Gaithersburg, Hyattsville, Bowie, Rockville, Hagerstown • Eastern Time (ET)
What Stands Out
- •Coverage: 2.9M people across 207 ZIP codes.
- •Major cities: Silver Spring, Bethesda, Frederick.
Spotlight: Coverage
Snapshot highlights for area code 240.
Income
91st
Home values
88th
Low poverty
60th