Oyan ( port. Oiã ) is a district ( fregezia ) in Portugal , part of Aveiro County. It is an integral part of the municipality of Oliveira do Bairo . It is part of a large metropolitan area Big Aveiro . According to the old administrative division, it was part of the province of Beira Litoral . Included in the economic and statistical subregion Baishu-Vouga , which is part of the Central region . The population is 6,712 people. It covers an area of 26.74 km².
|Region||Central Region (Portugal)|
|Municipality||Oliveira do Bairo|
|History and Geography|
|Population||6 712 people|
|Density||251.0 people / km²|