Olzai

Olzai

*Ortzai* (Sardinian)
Olzai Ortzai (Sardinian)
Comune
	Comune di Olzai
	View of Olzai
	Olzai Location of Olzai in Sardinia
	Coordinates: 40°11′N 9°9′E / 40.183°N 9.150°E
Country	Italy
Region	Sardinia
Province	Nuoro (NU)
Government
• Mayor	Ester Satta
Area
• Total	69.82 km2 (26.96 sq mi)
Elevation	474 m (1,555 ft)
Population (2026)
• Total	752
• Density	10.8/km2 (27.9/sq mi)
Demonym	Olzaesi
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	08020
Dialing code	0784
Website	Official website

Olzai (Sardinian: Ortzai) is a village and comune (municipality) in the Province of Nuoro in the autonomous island region of Sardinia in Italy, located about 110 kilometres (68 mi) north of Cagliari and about 20 kilometres (12 mi) southwest of Nuoro. It has 752 inhabitants.^[2]

Olzai borders the municipalities of Austis, Nughedu Santa Vittoria, Ollolai, Ottana, Sarule, Sedilo, Sorradile, and Teti.

Demographics

As of 2026, the population is 752, of which 50.9% are male, and 49.1% are female. Minors make up 10.9% of the population, and seniors make up 34.2%.^[2]

Historical population

Year	Pop.	±%
1861	1,220	—
1871	1,164	−4.6%
1881	1,213	+4.2%
1901	1,372	+13.1%
1911	1,250	−8.9%
1921	1,306	+4.5%
1931	1,478	+13.2%
1936	1,505	+1.8%

Year	Pop.	±%
1951	1,736	+15.3%
1961	1,884	+8.5%
1971	1,481	−21.4%
1981	1,278	−13.7%
1991	1,162	−9.1%
2001	1,046	−10.0%
2011	903	−13.7%
2021	774	−14.3%

Source: ISTAT^[3]^[4]

Immigration

As of 2025, immigrants make up 5.4% of the population. The 5 largest foreign countries of birth are Romania, Peru, Morocco, Germany, and Poland.^[5]

References

↑ "Superficie di Comuni Province e Regioni italiane al 9 ottobre 2011" (in Italian). ISTAT.
1 2 3 "Resident population". ISTAT.
↑ "Popolazione residente dei comuni. Censimenti dal 1861 al 1991" [Resident population of the municipalities. Censuses from 1861 to 1991] (PDF) (in Italian). ISTAT. Archived from the original (PDF) on 2025-11-12.
↑ "Resident population - Time series". ISTAT.
↑ "Resident population by sex, municipality and citizenship". ISTAT.

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[area-1] "Superficie di Comuni Province e Regioni italiane al 9 ottobre 2011" (in Italian). ISTAT.

[population-2] 1 2 3 "Resident population". ISTAT.

[3] "Popolazione residente dei comuni. Censimenti dal 1861 al 1991" [Resident population of the municipalities. Censuses from 1861 to 1991] (PDF) (in Italian). ISTAT. Archived from the original (PDF) on 2025-11-12.

[timeseries-4] "Resident population - Time series". ISTAT.

[foreignborn-5] "Resident population by sex, municipality and citizenship". ISTAT.

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