Olcnava
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Olcnava (Hungarian:Detrefalva) is a village and municipality in the Spišská Nová Ves District in the Košice Region of central-eastern Slovakia.
History
In historical records the village was first mentioned in 1312.
Geography
Themunicipalitylies at analtitudeof 411 metres (1,348ft)and covers anareaof 15.21km2(5.87sqmi) (2025).
Population
| Year | 1995 | 2005 | 2015 | 2025 |
|---|---|---|---|---|
| Count | 882 | 973 | 1057 | 1012 |
| Difference | +10.31% | +8.63% | −4.25% |
| Year | 2024 | 2025 |
|---|---|---|
| Count | 1015 | 1012 |
| Difference | −0.29% |
It has a population of 1012 people (31 December 2025).
Ethnicity
In year 2021 was 1040 people by ethnicity 971 as Slovak, 68 as Not found out, 18 as Romani, 10 as Rusyn, 4 as Other, 2 as Czech, 2 as Polish, 2 as English, 1 as Ukrainian, 1 as Serbian, 1 as German and 1 as Hungarian.
Note on population: The difference values of population numbers in the table "Population statistic" and in the sections "Ethnicity" & "Religion" is caused by the use of various statistical methods.
Religion
| Religion | Number | Fraction |
|---|---|---|
| Roman Catholic Church | 820 | 78.85% |
| Not found out | 92 | 8.85% |
| None | 84 | 8.08% |
| Greek Catholic Church | 17 | 1.63% |
| Evangelical Church | 12 | 1.15% |
| Total | 1040 |
In year 2021 was 1040 people by religion 820 from Roman Catholic Church, 92 from Not found out, 84 from None, 17 from Greek Catholic Church, 12 from Evangelical Church, 4 from Ad hoc movements, 3 from Calvinist Church, 3 from Eastern Orthodox Church, 3 from Jehovah's Witnesses, 1 from Other and 1 from Baptists Church.