Nyon has an area, as of 2009[update], of 307.35 square kilometers (118.67 sq mi).

[2] Most of the population (as of 2000[update]) speaks French (47,010 or 75.9%), with English being second most common (4,462 or 7.2%) and German being third (4,361 or 7.0%).

[4] The age distribution, as of 2009[update], in Nyon is; 10,782 children or 12.6% of the population are between 0 and 9 years old and 11,348 teenagers or 13.2% are between 10 and 19.

[3] The historical population is given in the following chart:[6] In the 2007 federal election the most popular party was the SVP which received 22.27% of the vote.

In the federal election, a total of 19,858 votes were cast, and the voter turnout was 44.7%.

[7] From the 2000 census[update], 20,892 or 33.7% were Roman Catholic, while 20,233 or 32.6% belonged to the Swiss Reformed Church.

In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts.

[8] During the school year, the district provided pre-school care for a total of 1,249 children.

There were 5,538 students in the primary school program, which last four years.