Füllinsdorf is a municipality located in the district of Liestal in the canton of Basel-Country in Switzerland.

[3] Füllinsdorf has an area, as of 2009[update], of 4.61 square kilometers (1.78 sq mi).

Of the rest of the land, 1.4 km2 (0.54 sq mi) or 30.4% is settled (buildings or roads), 0.03 km2 (7.4 acres) or 0.7% is either rivers or lakes.

In the 17th and 18th centuries, the industrial settlement of Niederschönthal grew up along the left bank of the Ergolz.

The blazon of the municipal coat of arms is Azure, a Horse salient Argent langued, hoofed and vilené Or.

[8] Most of the population (as of 2000[update]) speaks German (3,562 or 85.5%), with Italian language being second most common (143 or 3.4%) and Turkish being third (75 or 1.8%).

[9] As of 2008[update], the gender distribution of the population was 49.0% male and 51.0% female.

[7] The age distribution, as of 2010[update], in Füllinsdorf is; 285 children or 6.5% of the population are between 0 and 6 years old and 510 teenagers or 11.7% are between 7 and 19.

The greatest number of single family homes (174) were built between 1971 and 1980.

[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 31.45% of the vote.

In the federal election, a total of 1,358 votes were cast, and the voter turnout was 48.1%.

[8] There were 2,178 residents of the municipality who were employed in some capacity, of which females made up 44.0% of the workforce.

The number of jobs in the secondary sector was 466, of which 271 or (58.2%) were in manufacturing and 179 (38.4%) were in construction.

In the tertiary sector; 375 or 36.4% were in wholesale or retail sales or the repair of motor vehicles, 64 or 6.2% were in the movement and storage of goods, 49 or 4.8% were in a hotel or restaurant, 14 or 1.4% were in the information industry, 40 or 3.9% were the insurance or financial industry, 258 or 25.0% were technical professionals or scientists, 25 or 2.4% were in education and 85 or 8.2% were in health care.

[8] From the 2000 census[update], 1,071 or 25.7% were Roman Catholic, while 1,837 or 44.1% belonged to the Swiss Reformed Church.