It was the site of the Battle of Łomianki between Polish and German troops, fought on September 22, 1939 during the invasion of Poland.

Kampinos National Park has hundreds of kilometers of cycling trails and the largest inland sand dunes in Europe.

Łomianki is characterised by big residential houses, particularly around Ulica Zachodnia, and many active community groups.

Many expats live in Łomianki, mostly because it is equidistant between the two international airports of the Warsaw metropolitan area, Chopin and Modlin.

Of interest in Łomianki are the Jazz Cafe where live music from all over Poland and beyond is a regular feature, Manufaktura Czekolady which is the only place in Poland where chocolate is made from bean to bar, and the Lemon Tree Pub where most community events are hosted.