Results breakdown of the 1999 Spanish local elections (Asturias)

This is the results breakdown of the local elections held in Asturias 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.

Avilés

 * Population: 84,835

Gijón

 * Population: 265,491

Langreo

 * Population: 50,001

Mieres

 * Population: 50,760

Oviedo

 * Population: 199,549

San Martín del Rey Aurelio

 * Population: 21,758

Siero

 * Population: 46,664