Area code 559 covers the central San Joaquin Valley in California, including cities such as Fresno, Clovis, Visalia, and Hanford. It was created in 1998 as a split from the 209 area code due to the region’s agricultural and urban growth. Fresno, the largest city in the area, is a central hub for education, healthcare, and agribusiness in the Central Valley. 559 supports a large and diverse population across both urban and rural settings. The area code is closely tied to California’s farming industry and represents one of the most productive agricultural regions in the country. Although it remains a single area code without an overlay, demand may prompt changes in the future. The 559 identifier is often used with pride among Central Valley residents and local enterprises.