Diocese of Tarnów

The Diocese of Tarnów (Latin: Dioecesis Tarnoviensis) is a Latin diocese of the Catholic Church in Poland. According to Church statistics, it is the most religious diocese in Poland, with 72.5% weekly Mass attendance.^[4]

CountryPoland

MetropolitanKraków^[1]

Area7,566 km² (2,921 sq mi)

Population

• Total

• Catholics

• (as of 2022)

• 1,111,907

• 1,105,345 (99.4%)

Quick facts Diocese of TarnówDioecesis Tarnoviensis Diecezja Tarnowska, Location ...

Diocese of Tarnów Dioecesis Tarnoviensis Diecezja Tarnowska
Cathedral Basilica of the Nativity of the Virgin Mary in Tarnów
Location
Country	Poland
Metropolitan	Kraków[1]
Statistics
Area	7,566 km2 (2,921 sq mi)
Population Total Catholics	(as of 2022) 1,111,907 1,105,345 (99.4%)
Information
Denomination	Catholic Church
Rite	Latin Rite
Established	1783[2]
Cathedral	Bazylika katedralna Narodzenia NMP w Tarnowie
Current leadership
Pope	Leo XIV
Bishop	Andrzej Jeż[3]
Metropolitan Archbishop	Marek Jędraszewski
Auxiliary Bishops	Stanisław Salaterski Leszek Leszkiewicz

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The latest statistics, published in December 2025, showed the diocese has the highest rate of Sunday Massgoers in the country (62.3%), well ahead of the next highest dioceses of Rzeszów (52.4%) and Przemyśl (50.0%).^[5]