The Roman Catholic parish in Lutkówka, belonging to the Łowicz diocese and gathering nearly 1,600 parishioners, boasts a rich historical and architectural heritage. Established probably in the 14th century, with the first mention dating back to 1445, the parish features a larchwood church built in 1744, a date carved into the holy water font at the main entrance. The main altar, depicting the Holy Trinity, comes from the Gdańsk workshop of Abraham van den Blocke and was made from Mozańsk marbles between 1620 and 1630. It is characterized by the style of Dutch and Gdańsk Mannerism. The church interior is adorned with side altars: the left one contains paintings of St. Anthony, the Holy Family, and the Coronation of the Blessed Virgin Mary, while the right one features St. Roch and "The Head of St. John the Baptist on a Platter." In Lutkówka, there is also a chapel in Karolew, built as an Evangelical-Augsburg church at the end of the 19th century, which now serves as a filial church. For many years, the parish was run by the Redemptorists, and in 1896, the land surrounding the current church was purchased. In 1919, an elementary school for children from nearby villages was established here. The parish is known for its social activities, including the creation of a Parish Cooperative and the construction of a rectory in 1924. Since 1998, the parish priest has been Fr. Canon Zbigniew Chmielewski, who has overseen the complete renovation of the church. The parish's metrical books, covering baptisms since 1802 and marriages since 1826, attest to its long history. Interestingly, duplicates of the metrical books are stored in the State Archives in Grodzisk Mazowiecki. Lutkówka is a place that not only unites the faithful but also nurtures the rich cultural and historical tradition of the region.