Alfena is a

Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...

city and parish in the municipality of

Valongo Valongo () is a Portuguese municipality located in the District of Porto and 10 km from Porto, in the northern region of Portugal. The municipality area consists of 75.12 km² and 93 858 inhabitants (2011), and is subdivided into four ...

, Portugal. The population in 2010 was 18,130,Instituto Nacional de Estatística (INE)
Census 2011 results according to the 2013 administrative division of Portugal in an area of 15.7 km².

References

Freguesias of Valongo {{Porto-geo-stub