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

The first settlement in the area was a Roman era estate on a mule track from the Wigger valley toward Vindonissa.

The Eberkopf (German: Boar's Head) rock carvings date back to 893 AD, though the modern village of Safenwil is first mentioned in 924 as Sabenewilare.

In the 14th century the Ifenthal family ruled over the village from Scherenberg castle.

In 1803 it became part of the newly formed Canton of Aargau and was assigned to the Zofingen district.

This company employs approximately 230 workers and shapes the local labor market and the village.

[3] Safenwil has an area, as of 2009[update], of 5.99 square kilometers (2.31 sq mi).

[4] The municipality is located in the Zofingen district, between the lower Wigger and Suhre river valleys.

The blazon of the municipal coat of arms is Azure a Boar's Head Argent and in chief a Mullet Or.

[8] The age distribution, as of 2008[update], in Safenwil is; 300 children or 9.1% of the population are between 0 and 9 years old and 382 teenagers or 11.6% are between 10 and 19.

In the federal election, a total of 944 votes were cast, and the voter turnout was 41.1%.

[12] The historical population is given in the following table:[3] As of  2007[update], Safenwil had an unemployment rate of 2.54%.

[8] From the 2000 census[update], 640 or 20.5% were Roman Catholic, while 1,899 or 60.7% belonged to the Swiss Reformed Church.