Results breakdown of the 1999 Spanish local elections (Castile and León)

This is the results breakdown of the local elections held in Castile and León on 13 June 1999. The following tables show detailed results in the autonomous community's most populous municipalities, sorted alphabetically.

City control
The following table lists party control in the most populous municipalities, including provincial capitals (shown in bold). Gains for a party are displayed with the cell's background shaded in that party's colour.

Ávila

 * Population: 47,650

Burgos

 * Population: 161,984

León

 * Population: 139,809

Palencia

 * Population: 79,745

Ponferrada

 * Population: 61,469

Salamanca

 * Population: 158,457

Segovia

 * Population: 54,012

Soria

 * Population: 33,882

Valladolid

 * Population: 319,946

Zamora

 * Population: 64,421