 In 1385, it was referred as "Langenfelt vel Dlwhe Pole", in 1796 as "Hosszú Mező/Dluhe Pole".Until 1899, it was officially called as "Dlhepole", when it was renamed as "Trencsénhosszúmező".The municipality lies at an altitude of 392 metres and covers an area of 41.025 km².