Manche (; ; Norman language: Maunche) is a coastal French department in Normandy on the English Channel, which is known as La Manche, literally "the sleeve", in French. Manche is bordered by Ille-et-Vilaine and Mayenne to the south, Orne and Calvados to the east, the English Channel to the west and north and by sharing maritime borders with the Crown Dependencies of Bailiwick of Jersey and Bailiwick of Guernsey of the United Kingdom to the west. It had a population of 495,045 in 2019. Populations légales 2019: 50 Hérault, INSEE
The capital was Coutances until 1796, and it resumed that role after World War II because of the almost complete destruction of Saint-Lô during the Battle of Normandy following D-Day. When Saint-Lô was rebuilt, it once again became the capital.
Manche borders the Normandy departments of Calvados to the east and Orne to the southeast. Mayenne, a department of the Pays de la Loire, is to the south-east, and Ille-et-Vilaine in Brittany is to the south-west and it shares maritime borders with Bailiwick of Jersey and Bailiwick of Guernsey of the United Kingdom to the west. The salient of this department is the longest in France. It is also the second longest in Europe, after Odesa Oblast in Ukraine.
The region is lush and green with sandy beaches and remains oriented towards farming. The peninsula was originally joined as a single land mass to Cornwall and Dorset in England, meaning that the underlying geological strata of both regions are very similar. However, there are substantial regional differences today in terms of flora and fauna, and farming practices have varied considerably between the United Kingdom and France. Flat marsh areas in the department attract many bird-watchers. The region in and around St Lô is also the equestrian capital of France, where the cooler climate compared to the south is ideal for breeding and training.
France's first EPR nuclear reactor is under construction at Flamanville near Cherbourg and is planned to start operations in late 2023.
| Cherbourg-en-Cotentin | 78,549 |
| Saint-Lô | 19,050 |
| Granville | 12,513 |
| La Hague | 11,173 |
| Avranches | 10,264 |
| Carentan-les-Marais | 10,052 |
The west coast benefits from the influence of the Gulf Stream and this has enabled the naturalization of Mediterranean and exotic plants such as mimosas, palms, and agaves.
There is often a sea breeze on the coast, which combined with tides, contributes to rapid temperature changes in the course of a single day. Sea temperatures can be very pleasant for swimming between June and October.
Population development since 1801:
| 2022 | Emmanuel Macron | LREM | 59.61 | Marine Le Pen | FN | 40.39 | |
| 2017 | Emmanuel Macron | LREM | 67.23 | Marine Le Pen | FN | 32.77 | |
| 2012 | Nicolas Sarkozy | UMP | 50.10 | François Hollande | PS | 49.90 | |
| 2007 | Nicolas Sarkozy | UMP | 56.17 | Ségolène Royal | PS | 43.83 | |
| 2002 | Jacques Chirac | RPR | 85.31 | Jean-Marie Le Pen | National Rally | 14.69 |
| Manche's 1st constituency | Philippe Gosselin | The Republicans | |
| Manche's 2nd constituency | Bertrand Sorre | Renaissance | |
| Manche's 3rd constituency | Stéphane Travert | Renaissance | |
| Manche's 4th constituency | Anna Pic | Socialist Party |
==Tourism==
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