Diepflingen is a municipality in the district of Sissach in the canton of Basel-Country in Switzerland.

The Swiss Diet (Tagsatzung), however, didn't accept this, and after only 9 days the Republic was renounced and Diepflingen joined Basel-Country.

Diepflingen has an area, as of 2009[update], of 1.44 square kilometers (0.56 sq mi).

Of the rest of the land, 0.18 km2 (0.069 sq mi) or 12.5% is settled (buildings or roads), 0.01 km2 (2.5 acres) or 0.7% is either rivers or lakes.

[4] The municipality is located in the Sissach district, on the right side of the Homburger stream on the old road over the lower Hauenstein.

The blazon of the municipal coat of arms is On a base vert an argent tower-wall with gules gate and roof before sable background[5] Diepflingen has a population (as of June 2021[update]) of 765.

[8] Most of the population (as of 2000[update]) speaks German (449 or 88.7%), with Serbo-Croatian being second most common (18 or 3.6%) and Turkish being third (17 or 3.4%).

[7] The age distribution, as of 2010[update], in Diepflingen is; 46 children or 8.0% of the population are between 0 and 6 years old and 97 teenagers or 16.8% 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 48.06% of the vote.

In the federal election, a total of 187 votes were cast, and the voter turnout was 51.2%.

[8] There were 280 residents of the municipality who were employed in some capacity, of which females made up 38.2% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 117.

In the tertiary sector; 15 or 34.9% were in wholesale or retail sales or the repair of motor vehicles, 3 or 7.0% were in a hotel or restaurant, 12 or 27.9% were technical professionals or scientists, 5 or 11.6% were in education.

[8] From the 2000 census[update], 113 or 22.3% were Roman Catholic, while 290 or 57.3% belonged to the Swiss Reformed Church.