Where is Area Code 321?
Area code 321 is found in the US state of Florida. Primarily servicing the city of Alexandria (population: 140658), area code 321 covers 1 county of Florida.
Located in the Eastern time zone, area code 321 is on the same time as New York, NY.
Area code 321 was brought into effect on November 1, 1999. 321 was split from the parent 407 area code.
Counties in Area Code 321
- Brevard.
Most Populous Cities in Area Code 321
| City | County | City Population |
|---|---|---|
| Melbourne | Brevard | 140,658 |
| Palm Bay | Brevard | 105,722 |
| Cocoa | Brevard | 66,234 |
| Titusville | Brevard | 55,162 |
| Merritt Island | Brevard | 42,942 |
| Rockledge | Brevard | 36,637 |
| Satellite Beach | Brevard | 25,149 |
| Cocoa Beach | Brevard | 13,665 |
| Indialantic | Brevard | 12,962 |
| Mims | Brevard | 11,393 |
| Melbourne Beach | Brevard | 10,750 |
| Cape Canaveral | Brevard | 9,919 |
| Sebastian | Brevard | 9,144 |
| Malabar | Brevard | 4,010 |
| Grant | Brevard | 2,264 |
| Patrick AFB | Brevard | 1,230 |
Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.
View all United States Area Codes.