Zilia is a commune in the Haute-Corse department of France on the island of Corsica.

The municipality is part of the canton of Calvi. Its area is 1,401 hectares (3,460 acres) which includes 700 hectares (1,700 acres) of woods. The village itself is situated at an altitude of 278 metres (912 ft) at the foot of the Monte Grosso (1,938 metres or 6,358 feet), 7 kilometres (4.3 mi) north-east of Calvi, the capital.

One road, the D 151, serves the village and links it directly to Calenzana and Montegrosso.

Zilia is known for both vineyards as well a mineral spring which was operated before 1914 and again recently. The water sells throughout the island under the name of Zilia bottled water, both flat and carbonated.

The village suffered a huge fire on the night of 31 June 2005 at Calenzana and destroyed 1500ha of vegetation including many old olive trees in Balagne.

Historical population

Year Pop. ±% p.a. 1800 552 —     1806 613 +1.76% 1821 580 −0.37% 1831 611 +0.52% 1836 657 +1.46% 1841 692 +1.04% 1846 721 +0.82% 1851 745 +0.66% 1856 676 −1.93% 1861 688 +0.35% 1866 702 +0.40% 1872 687 −0.36% 1876 704 +0.61% 1881 762 +1.60% 1886 701 −1.65% 1891 730 +0.81% 1896 731 +0.03% 1901 746 +0.41%	Year Pop. ±% p.a. 1906 714 −0.87% 1911 531 −5.75% 1921 471 −1.19% 1926 515 +1.80% 1931 514 −0.04% 1936 505 −0.35% 1946 508 +0.06% 1954 311 −5.95% 1962 320 +0.36% 1968 311 −0.47% 1975 253 −2.91% 1982 237 −0.93% 1990 179 −3.45% 1999 212 +1.90% 2009 253 +1.78% 2014 293 +2.98% 2020 298 +0.28%
Source: EHESS (1793-1999) and INSEE

• Communes of the Haute-Corse department