Strengelbach is a municipality in the district of Zofingen in the canton of Aargau in Switzerland.

Strengelbach has an area, as of 2009[update], of 6.01 square kilometers (2.32 sq mi).

Of the rest of the land, 1.38 km2 (0.53 sq mi) or 23.0% is settled (buildings or roads), 0.05 km2 (12 acres) or 0.8% is either rivers or lakes.

[3] The blazon of the municipal coat of arms is Or a Bend wavy sinister Azure.

[7] The age distribution, as of 2008[update], in Strengelbach is; 457 children or 10.2% of the population are between 0 and 9 years old and 508 teenagers or 11.3% are between 10 and 19.

[7] In the 2007 federal election the most popular party was the SVP which received 33.29% of the vote.

[7] From the 2000 census[update], 1,369 or 32.1% were Roman Catholic, while 2,124 or 49.8% belonged to the Swiss Reformed Church.

It was open a total of 169 days with average of 8.5 hours per week during that year.