Collinas

Collinas Forru (Sardinian)
Comune
Comune di Collinas
View of Collinas
Collinas Location of Collinas in Sardinia
Coordinates: 39°38′N 8°51′E
Country	Italy
Region	Sardinia
Province	Medio Campidano
Area
• Total	20.83 km2 (8.04 sq mi)
Elevation	249 m (817 ft)
Population  (2026)
• Total	741
• Density	35.6/km2 (92.1/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	09020
Dialing code	070

Collinas (Sardinian: Forru) is a village and comune (municipality) in the Province of Medio Campidano in the autonomous island region of Sardinia in Italy, located about 50 kilometres (31 mi) northwest of Cagliari and about 9 kilometres (6 mi) northwest of Sanluri. It has 741 inhabitants.

Collinas borders the municipalities of Gonnostramatza, Lunamatrona, Mogoro, Sardara, Siddi, and Villanovaforru.

Demographics

As of 2026, the population is 741, of which 48.9% are male, and 51.1% are female. Minors make up 8.9% of the population, and seniors make up 35.9%.

Historical population

Year	Pop.	±%
1861	976	—
1871	1,012	+3.7%
1881	1,072	+5.9%
1901	1,033	−3.6%
1911	1,088	+5.3%
1921	1,065	−2.1%
1931	1,040	−2.3%
1936	1,091	+4.9%

Year	Pop.	±%
1951	1,206	+10.5%
1961	1,213	+0.6%
1971	1,129	−6.9%
1981	1,145	+1.4%
1991	1,076	−6.0%
2001	1,014	−5.8%
2011	885	−12.7%
2021	781	−11.8%

Source: ISTAT

Immigration

As of 2025, immigrants make up 2.6% of the total population. The 5 largest foreign countries of birth are France, Romania, Morocco, Germany, and Kyrgyzstan.