Arboldswil is a municipality in the district of Waldenburg in the canton of Basel-Country in Switzerland.

[3] Arboldswil has an area, as of 2009[update], of 3.48 square kilometers (1.34 sq mi).

Of the rest of the land, 0.22 km2 (0.085 sq mi) or 6.3% is settled (buildings or roads).

The blazon of the municipal coat of arms is Azure, a tower embattled argent masoned sable issuant from a mount of three coupeaux vert, in chief the sun in its splendour or.

[8] Most of the population (as of 2000[update]) speaks German (454 or 92.1%), with Portuguese being second most common (16 or 3.2%) and French being third (5 or 1.0%).

[9] As of 2008[update], the gender distribution of the population was 50.5% male and 49.5% female.

[7] The age distribution, as of 2010[update], in Arboldswil is; 45 children or 8.6% of the population are between 0 and 6 years old and 78 teenagers or 14.9% are between 7 and 19.

[8] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the SVP which received 43.31% of the vote.

In the federal election, a total of 229 votes were cast, and the voter turnout was 59.8%.

[8] There were 261 residents of the municipality who were employed in some capacity, of which females made up 41.0% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 52.

In the tertiary sector; 2 or 5.4% were in wholesale or retail sales or the repair of motor vehicles, 1 or 2.7% were in a hotel or restaurant, 1 or 2.7% were the insurance or financial industry, 25 or 67.6% were technical professionals or scientists, 6 or 16.2% were in education.

[8] From the 2000 census[update], 48 or 9.7% were Roman Catholic, while 340 or 69.0% belonged to the Swiss Reformed Church.