Ostrá Lúka Osztroluka
Municipality
A manor house in Ostrá Lúka.
Flag
Ostrá Lúka Location of Ostrá Lúka in the Banská Bystrica Region Show map of Banská Bystrica Region Ostrá Lúka Location of Ostrá Lúka in Slovakia Show map of Slovakia
Coordinates: 48°33′N 19°03′E / 48.55°N 19.05°E / 48.55; 19.05
Country	Slovakia
Region	Banská Bystrica Region
District	Zvolen District
First mentioned	1332
Government
• Mayor	Juraj Jelok (Ind.)
Area [1]
• Total	20.26 km2 (7.82 sq mi)
Elevation [3]	453 m (1,486 ft)
Population  (2024)[2]
• Total	333
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	962 33[3]
Area code	+421 45[3]
Vehicle registration plate (until 2022)	ZV
Website	www.ostraluka.sk

Ostrá Lúka (Hungarian: Osztroluka) is a village and municipality of the Zvolen District in the Banská Bystrica Region of Slovakia.

The municipality lies at an altitude of 453 metres (1,486 ft)^[3] and covers an area of 20.26 km² (7.82 sq mi) (2024).^[4]

In 2024, the remains of a medieval church dating from the 13th century was found at Ostrá Lúka. A geophysical survey revealed the church's floor plan, including its rectangular nave, presbytery, and sacristy added in the 14th century, as well as a crypt and later fortification wall that surrounded the church and cemetery.^[5]

Before the establishment of independent Czechoslovakia in 1918, Ostrá Lúka was part of Zólyom County within the Kingdom of Hungary. From 1939 to 1945, it was part of the Slovak Republic.

It has a population of 333 people (31 December 2024).^[7]

In year 2021 was 305 people by ethnicity 289 as Slovak, 12 as Not found out, 10 as Romani, 2 as Czech, 2 as Rusyn, 2 as Russian, 2 as German, 1 as Polish and 1 as English.

Note on population

The difference between the population numbers above and in the census (here and below) is that the population numbers above are mostly made up of permanent residents, etc.; and the census should indicate the place where people actually mainly live. For example, a student is a citizen of a village because he has permanent residence there (he lived there as a child and has parents), but most of the time he studies at a university in the city.

In year 2021 was 305 people by religion 115 from None, 102 from Roman Catholic Church, 63 from Evangelical Church, 11 from Not found out, 4 from Greek Catholic Church, 3 from Other, 3 from United Methodist Church, 1 from Old Catholic Church, 1 from Eastern Orthodox Church, 1 from Paganism and natural spirituality and 1 from Hinduism.