Apple will invest $1 billion in a new campus in Austin, Texas, the company announced on Thursday.

The 133-acre campus will be located in North Austin and will accommodate an initial 5,000 employees, with capacity for 15,000 employees in total. The new campus will be located less than one mile from Apple's existing Austin facilities and will house a range of jobs in engineering, R&D, operations, finance, sales and customer support.

Apple said the expansion will make it the largest private employer in Austin.

"Apple is proud to bring new investment, jobs and opportunity to cities across the United States and to significantly deepen our quarter-century partnership with the city and people of Austin," Apple CEO Tim Cook said in a press release.

Texas Governor Greg Abbott said in a statement Apple's decision to expand in Texas "is a testament to the high-quality workforce and unmatched economic environment that Texas offers."

On Thursday, Apple also announced plans to open new sites and add over 1,000 employees in Seattle, San Diego and Culver City over the next three years. It said it will also expand its existing operations in Pittsburgh, New York, Boulder, Boston and Portland, Oregon.