The village is situated under the Greater Fatra Range, at the opening of the spectacular karst Gader and Blatnica valleys.

Before the establishment of independent Czechoslovakia in 1918, it was part of Turóc County within the Kingdom of Hungary.

The first Slovak female botanist Izabela Textorisová lived in Blatnica and her rich herbarium contains plants of the nearby Tlstá mountain.

Both Textorisová's house and a museum dedicated to the ethnographer, filmmaker, and photographer Karol Plicka are open to the public.

[2] Blatnica is one of few villages with a Lutheran absolute majority (58.6%) in the predominantly Roman Catholic Slovakia.