Results breakdown of the 1991 Spanish local elections (La Rioja)

This is the results breakdown of the local elections held in La Rioja on 26 May 1991. 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.

Logroño

 * Population: 121,911