| Area Code | 559 |
| State | California |
| Current Time in Area Code 559 | 559> PDT |
| Timezone | Pacific Daylight Time |
| Regional Market Area | Fresno-Visalia Area |
| Metro Area(s) | Fresno, CA Hanford-Corcoran, CA Madera, CA Visalia, CA |
| Population (2020) | 1790512 |
| Adjacent Area Codes | 209,442,661,760,805,820,831 |
| Fresno County |
| Kings County |
| Madera County |
| Tulare County |