Some 66.5% of Catalans would vote in favor of a republic in a referendum on the monarchy in Spain. Only 14.6% would support the monarchy.
The survey was carried out by sixteen media outlets, based on 3,000 interviews throughout Spain, including 500 in Catalonia.
Across Spain, 40.9% would vote for the Republic while 34.9% would vote for the monarchy.
Among the various institutions mentioned in the survey, Catalonia gave the worst approval rating to the Catholic Church, 2.3 out of 10.
King Felipe VI received a rating of 3.6 from Catalans versus 5.8 from the whole of Spain.
Former king, Juan Carlos I, who fled the country amid allegations of corruption, has a 1.9 rating in Catalonia and 3.3 in Spain.
Satisfaction with the monarchy in Catalonia is 2.9 with almost half of the Catalans rating the monarchy with a 0 or 1. In Spain the support is 4.6.
The support for the monarchy remains high among right wing and far right voters, while it is very low among left wing voters. A Republic is preferred by young people and the monarchy by those over 55 years of age.