Vianen is a city in the Netherlands, in the province of Utrecht, in the Weifherenlanden community. The total area is 42.17 km² (water occupies 2.71 km²), the population (as of 2016) is 19,513 people. Until 2002, it was part of the province of South Holland. Watch camera online in Vianen Vianen is crossed by two large motorways to Utrecht: the A2 (Amsterdam - Maastricht) to the west and the A27 (Breda - Almere) to the east of the city. Both roads are often congested near Vianen during rush hour.