Niederrohrdorf is a municipality in the district of Baden in the canton of Aargau in Switzerland.

Of the rest of the land, 24.5% is settled (buildings or roads) and the remainder (0.9%) is non-productive (rivers or lakes).

[5] The municipality is located in the Baden district, on the western foot of the Heitersberg in an ecologically important moorland.

It consists of the village of Niederrohrdorf and the hamlets of Holzrüti and Vogelrüti as well as scattered farm houses.

[5] The age distribution, as of 2008[update], in Niederrohrdorf is; 324 children or 9.9% of the population are between 0 and 9 years old and 327 teenagers or 10.0% are between 10 and 19.

[11] In the 2007 federal election the most popular party was the SVP which received 36.4% of the vote.

[12] From the 2000 census[update], 1,251 or 51.2% are Roman Catholic, while 662 or 27.1% belonged to the Swiss Reformed Church.