Grellingen is a municipality in the district of Laufen in the canton of Basel-Country in Switzerland.

Grellingen has an area, as of 2009[update], of 3.31 square kilometers (1.28 sq mi).

Of the rest of the land, 0.64 km2 (0.25 sq mi) or 19.3% is settled (buildings or roads), 0.11 km2 (27 acres) or 3.3% is either rivers or lakes.

It consists of the linear village of Grellingen in the Birs river valley.

[8] Most of the population (as of 2000[update]) speaks German (1,304 or 81.8%), with Albanian being second most common (76 or 4.8%) and Italian language being third (60 or 3.8%).

The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 17 and the non-Swiss population change was a decrease of 11 people.

[7] The age distribution, as of 2010[update], in Grellingen is; 105 children or 6.1% of the population are between 0 and 6 years old and 255 teenagers or 14.7% are between 7 and 19.

The greatest number of single family homes (61) were built between 1981 and 1990.

[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 41.71% of the vote.

In the federal election, a total of 539 votes were cast, and the voter turnout was 53.1%.

[8] There were 841 residents of the municipality who were employed in some capacity, of which females made up 38.5% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 420.

The number of jobs in the secondary sector was 304, of which 251 or (82.6%) were in manufacturing and 53 (17.4%) were in construction.

In the tertiary sector; 42 or 36.8% were in wholesale or retail sales or the repair of motor vehicles, 6 or 5.3% were in the movement and storage of goods, 22 or 19.3% were in a hotel or restaurant, 1 or 0.9% were in the information industry, 10 or 8.8% were technical professionals or scientists, 16 or 14.0% were in education and 2 or 1.8% were in health care.

[8] From the 2000 census[update], 785 or 49.2% were Roman Catholic, while 274 or 17.2% belonged to the Swiss Reformed Church.