Pfeffingen (Swiss German: Pfäffige) is a municipality in the district of Arlesheim in the canton of Basel-Country in Switzerland.

[3] Pfeffingen has an area, as of 2009[update], of 4.9 square kilometers (1.9 sq mi).

Of the rest of the land, 0.7 km2 (0.27 sq mi) or 14.3% is settled (buildings or roads).

[4] The municipality is located in the Arlesheim district, on a terrace that runs along the eastern edge of the Blauenkette on the route over the Platten pass.

The blazon of the municipal coat of arms is Argent, from a Bar Azure a semi-fleur-de-lis issuant of the same.

[8] Most of the population (as of 2000[update]) speaks German (1,921 or 94.8%), with English being second most common (36 or 1.8%) and French being third (22 or 1.1%).

The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 39 and the non-Swiss population change was an increase of 2 people.

[7] The age distribution, as of 2010[update], in Pfeffingen is; 123 children or 5.6% of the population are between 0 and 6 years old and 344 teenagers or 15.6% are between 7 and 19.

[8] The historical population is given in the following chart:[3][12] The castle ruins of Pfeffingen, Engenstein, Münchsberg and Schalberg are listed as a Swiss heritage site of national significance.

[13] In the 2007 federal election the most popular party was the SVP which received 29.51% of the vote.

In the federal election, a total of 839 votes were cast, and the voter turnout was 53.0%.

[8] There were 1,037 residents of the municipality who were employed in some capacity, of which females made up 41.2% of the workforce.

In the tertiary sector; 22 or 17.9% were in wholesale or retail sales or the repair of motor vehicles, 8 or 6.5% were in the movement and storage of goods, 3 or 2.4% were in a hotel or restaurant, 1 or 0.8% were in the information industry, 3 or 2.4% were the insurance or financial industry, 24 or 19.5% were technical professionals or scientists, 40 or 32.5% were in education and 3 or 2.4% were in health care.

[8] From the 2000 census[update], 894 or 44.1% were Roman Catholic, while 689 or 34.0% belonged to the Swiss Reformed Church.