El Rosario is a municipality of the northeastern part of the island of Tenerife in the Santa Cruz de Tenerife province, on the Canary Islands. The city is also a suburban area of the Santa Cruz de Tenerife area. The seat of the municipality is La Esperanza (meaning esperance) located in the mountains to the west.

The population is 15,542 (ISTAC, 2003), its density is 390.99/km² and the area is 39.42 km². El Rosario is linked with the old highway linking Abona and Santa Cruz de Tenerife and the TF1 superhighway and is linked with the TF2 to the north.

Its economy are business, tourism and some agriculture. Tourism is less common than its coastline and two large cities on Tenerife. The urban area dominates the coastline area, farmlands in valley areas and the mountains with grasslands and some forests to the west.

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