History
In historical records the village was first mentioned in 1392. However, the village was inhabited for a long time before. Archeological studies revealed the existence of Celtic and Roman settlements, which were subsequently replaced by Slavic settlement in the 9th century. In that time, the municipality and surroundings were part of the Great Moravia. At the end of the 11th century the village became part of the Hungarian Kingdom.
The name of the village comes from Peter Varády, an important Hungarian aristocrat who came to the village in the year 1093. Therefore, the village was named Peterlak in Hungarian, Petrovilla in Latin and Petersdorf in German. Since the end of World War I, the former Czechoslovak state proclaimed the name Petrova Ves as the official name of the village.
Population
Population statistic (10 years)| Year | 1995 | 2005 | 2015 | 2025 |
|---|
| Count | 1016 | 1005 | 1085 | 1081 |
|---|
| Difference | |
−1.08% |
+7.96% |
−0.36% |
|---|
Population statistic| Year | 2024 | 2025 |
|---|
| Count | 1082 | 1081 |
|---|
| Difference | | −0.09% |
|---|
It has a population of 1081 people (31 December 2025).
Ethnicity
Census 2021 (1+%)| Ethnicity | Number | Fraction |
|---|
| Slovak | 1059 | 97.87% |
| Total | 1082 |
In year 2021 was 1082 people by ethnicity 1059 as Slovak, 9 as Czech, 6 as Not found out, 6 as Other, 5 as Hungarian, 4 as Italian, 2 as Austrian, 2 as German and 1 as Moravian.
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
Census 2021 (1+%)| Religion | Number | Fraction |
|---|
| Roman Catholic Church | 867 | 80.13% |
| None | 164 | 15.16% |
| Not found out | 17 | 1.57% |
| Total | 1082 |
In year 2021 was 1082 people by religion 867 from Roman Catholic Church, 164 from None, 17 from Not found out, 10 from Evangelical Church, 9 from Christian Congregations in Slovakia, 4 from Greek Catholic Church, 4 from Ad hoc movements, 2 from Jehovah's Witnesses, 1 from Eastern Orthodox Church, 1 from Other and not ascertained christian church, 1 from Other, 1 from United Methodist Church and 1 from Church of Jesus Christ of Latter-day Saints.
Slovakia
Trnava Region
