Most ancient buildings are the ruins of the donjon, built in the 11th century and destroyed in 1425.

There is also near St Sauveur's church, dating from the 15th century.

In 768, the French king Pepin the Short offered the village of Maurepas (formerly spelled Malrepast) and its wooden keep to the Abbey of Saint-Denis. Facing the Normans' invasions, they left the domain to the Lords of Chevreuse. The castle and village were given to the family of Malrepast, a vassal of the Lords of Chevreuse, which gave its name to the village.

In 1432, during the Hundred Years' War, the English conquered the village and destroyed the keep.

After the war, the domain of Maurepas returned to the family of Chevreuse, but the castle remained a ruin.

Jean-Frédéric Phélypeaux from the Phélypeaux family, was Count of Maurepas. He was living in the next city of Jouars-Pontchartrain in the Château de Pontchartrain.

• 
  Entrance of church Saint-Sauveur.
• 
  The ruins of the donjon.

who lived in Maurepas

• Erich von Stroheim - (1885–1957), Austrian-American actor, film director, producer born in Vienna, Austria, died at his home in Maurepas from cancer.

Maurepas is served by no station of the Paris Métro, RER, or suburban rail network. The closest station to Maurepas is La Verrière station on the Transilien La Défense and Transilien Paris – Montparnasse suburban rail lines. This station is located in the neighboring commune of La Verrière, 0.7 km (0.43 mi) from the town center of Maurepas.

Historical population

Year Pop. ±% p.a. 1793 247 —     1800 282 +1.91% 1806 255 −1.66% 1821 272 +0.43% 1831 306 +1.18% 1836 306 +0.00% 1841 288 −1.21% 1846 311 +1.55% 1851 283 −1.87% 1856 263 −1.46% 1861 262 −0.08% 1866 264 +0.15% 1872 242 −1.44% 1876 222 −2.13% 1881 232 +0.89% 1886 227 −0.43% 1891 242 +1.29% 1896 242 +0.00%	Year Pop. ±% p.a. 1901 226 −1.36% 1906 252 +2.20% 1911 273 +1.61% 1921 284 +0.40% 1926 300 +1.10% 1931 286 −0.95% 1936 253 −2.42% 1946 325 +2.54% 1954 304 −0.83% 1962 352 +1.85% 1968 1,791 +31.15% 1975 13,577 +33.56% 1982 18,764 +4.73% 1990 19,718 +0.62% 1999 19,586 −0.07% 2007 18,789 −0.52% 2012 18,907 +0.13% 2017 18,281 −0.67%
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Source: EHESS and INSEE

Junior high schools:

• Collège Alexandre Dumas
• Collège Louis Pergaud
• Collège de la Mare aux Saules in nearby Coignières

Senior high schools/sixth-form colleges:

• Lycée des 7 Mares
• Lycée Dumont d'Urville

It is twinned with Waterlooville in Hampshire, and Tirat Carmel in Haifa district, Israel.

• Communes of the Yvelines department

Wikimedia Commons has media related to Maurepas (Yvelines).

• Official website (in French)

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