Lupfig is a municipality in the district of Brugg in canton of Aargau in Switzerland.

Near the modern village of Lupfig was the source of a Roman aqueduct leading to the camp of Vindonissa.

In the 14th century, the rights to the low justice and property in the village went to Königsfelden Abbey.

While agriculture was the main economic force, starting in the middle 18th century home cotton production provided another source of income.

Due to good transportation links (A1 and A3 motorways and the Swiss Federal Railways Gotthard line) since the 1950s the village has become an industry and distribution center.

In the 1980s new residential buildings were built in Lupfig to house the growing number of commuters.

Of the rest of the land, 1.38 square kilometers (0.53 sq mi) or 26.8% is settled (buildings or roads), 0.02 km2 (4.9 acres) or 0.4% is either rivers or lakes.

The blazon of the municipal coat of arms is Azure three Ears of wheat, the two outer leaved Or.

[8] The age distribution, as of 2008[update], in Lupfig is; 227 children or 10.9% of the population are between 0 and 9 years old and 222 teenagers or 10.7% are between 10 and 19.

[10] About 57.9% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[8] From the 2000 census[update], 586 or 32.2% were Roman Catholic, while 893 or 49.1% belonged to the Swiss Reformed Church.