Santo Ildefonso () is a former

civil parish In England, a civil parish is a type of Parish (administrative division), administrative parish used for Local government in England, local government. It is a territorial designation which is the lowest tier of local government below district ...

in the municipality of

Porto Porto or Oporto () is the second-largest city in Portugal, the capital of the Porto District, and one of the Iberian Peninsula's major urban areas. Porto city proper, which is the entire municipality of Porto, is small compared to its metropo ...

, Portugal. In 2013, the parish merged into the new parish

Cedofeita, Santo Ildefonso, Sé, Miragaia, São Nicolau e Vitória Cedofeita, Santo Ildefonso, Sé, Miragaia, São Nicolau e Vitória is a civil parish in the municipality of Porto Porto or Oporto () is the second-largest city in Portugal, the capital of the Porto District, and one of the Iberian Peninsula's ...

. The population in 2011 was 9,029, in an area of 1.24 km².Eurostat
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References

Former parishes of Porto {{porto-geo-stub