Germans evacuated Niwiska and the neighbouring village of Blizna in order to test their experimental V-1 and V-2 missiles there.

Throughout the war the same seclusion led refugees and partisans to the Niwiska Forest for a place to hide and conduct subversive activities.

Jan Kurek, a chaplain for the local Home Army (Armia Krajowa) together with forester Henryk Augustynowicz, played an instrumental role in the decoding of information found on bits of shrapnel and rockets, which assisted the Allies.

Today, Niwiska has two schools, a civic center, a health clinic, a fire station and a post office.

The village covers an area of 23.87 square kilometres (9.22 sq mi), and as of 2009[update] its total population is 1,560.