Rio Mau is a
Portuguese parish located in the municipality of
Penafiel. The population in 2011 was 1,407,
[Instituto Nacional de Estatística (INE)]
Census 2011 results according to the 2013 administrative division of Portugal in an area of 6.13 km
2.
[Áreas das freguesias, concelhos, distritos e país]
/ref> It was created in 1984 by Law nº 42/84, of December 31, with places disannexed from the parish of Sebolido.
References
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Freguesias of Penafiel