Onda, Spain

Onda
Municipality
Onda, panoramic view
Onda
Location in Spain
Coordinates: 39°57′50″N 0°15′46″W / 39.96389°N 0.26278°W / 39.96389; -0.26278
Country Spain
Autonomous Community Valencian Community
ProvinceCastellón
ComarcaPlana Baixa
Government
 • MayorCarmina Ballester Feliu (PP)
Area
 • Total
108.42 km2 (41.86 sq mi)
Elevation194 m (636 ft)
Population
 (2025-01-01)
 • Total
26,190
 • Density241.6/km2 (625.6/sq mi)
Time zoneUTC+1 (CET)
 • Summer (DST)UTC+2 (CEST (GMT +2))
Postal code
12200
Area code+34 (Spain) + 964 (Castellón)
Websitewww.onda.es

Onda is a town in eastern Spain, in the province of Castelló, part of the autonomous community of Valencia. It has 24,859 inhabitants.

The Sitjar dam, located close to Onda, is an important feature for the irrigation of the nearby fields with water from the Millars River.