Jacou
Commune
Town hall
Coat of arms
Location of Jacou
Jacou Show map of France Jacou Show map of Occitanie
Coordinates: 43°39′41″N 3°54′44″E / 43.6614°N 3.9122°E / 43.6614; 3.9122
Country	France
Region	Occitania
Department	Hérault
Arrondissement	Montpellier
Canton	Montpellier - Castelnau-le-Lez
Intercommunality	Montpellier Méditerranée Métropole
Government
• Mayor (2020–2026)	Renaud Calvat[1]
Area 1	3.43 km2 (1.32 sq mi)
Population  (2021)[2]	6,823
• Density	2,000/km2 (5,200/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	34120 /34830
Elevation	45–85 m (148–279 ft) (avg. 68 m or 223 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Jacou (French pronunciation: [ʒaku] ^ⓘ; Occitan: Jacon) is a commune in the Hérault département in the Occitanie region in southern France. Located on the outskirts of Montpellier, it is situated around 7 km (4.3 mi) north of the Montpellier city centre.

The commune borders Clapiers to the west, Castelnau-le-Lez to the south, Le Crès to the east, and Teyran to the north.

In 2020, Météo-France published a typology of climates in mainland France in which the commune is exposed to a Mediterranean climate and is part of the Provence-Languedoc-Roussillon climatic region, characterized by low rainfall in summer, very good sunshine (2,600 h/year), a hot summer 21.5 °C (71 °F), very dry air in summer, dry conditions in all seasons, strong winds (with a frequency of 40 to 50% for winds > 5 m/s), and little fog.^[3]

For the period from 1971 to 2000, the average annual temperature was 14.2 °C (58 °F) with an annual atmospheric temperature of 16.6 °C (62 °F). The average annual total rainfall during this period was 746 mm, with 6 days of precipitation in January and 2.8 days in July.^[4] For the subsequent period of 1991 to 2020, the average annual temperature observed at the nearest weather station, located in the commune of Prades-le-Lez, 6 kilometres (4 mi) away as the crow flies,^[5] is 14.6 °C (58 °F), and the average annual total rainfall is 869.7 mm.^[6][7]

For the future, climate parameters for the municipality projected for 2050, based on different greenhouse gas emission scenarios, can be consulted on a dedicated website published by Météo-France in November 2022.^[8]

Changes in the number of inhabitants have been documented through population censuses conducted in the commune since 1793. For communes with fewer than 10,000 inhabitants, a full census of the population is conducted every five years, with the legal populations for the intervening years estimated through interpolation or extrapolation.^[9] For this commune, the first complete census under the new system was carried out in 2004.^[10]

In 2021, the commune had a population of 6,823,^{[Note 1]} reflecting an increase of +0.99 since 2015 (Hérault: +7.29%, France excluding Mayotte: +1.84%).

• Communes of the Hérault department

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