Burg im Leimental is a municipality in the district of Laufen in the canton of Basel-Country in Switzerland.

Burg im Leimental is first mentioned in 1168 as Biedertan though this was referring to Alt-Biederthal Castle.

[3] Burg im Leimental has an area, as of 2009[update], of 2.83 square kilometers (1.09 sq mi).

[4] The municipality is located in the Laufen district, on the northern slope of the Blauen mountains.

The blazon of the municipal coat of arms is Argent, a Bar Sable between three Torteaux.

[10] Of the population in the municipality 53 or about 23.1% were born in Burg im Leimental and lived there in 2000.

[7] The age distribution, as of 2010[update], in Burg im Leimental is; 20 children or 8.3% of the population are between 0 and 6 years old and 31 teenagers or 12.9% are between 7 and 19.

[8] The historical population is given in the following chart:[3][12] The Castle with its chapel is listed as a Swiss heritage site of national significance.

The entire village of Burg im Leimental is listed as part of the Inventory of Swiss Heritage Sites.

The number of jobs in the primary sector was 6, of which 5 were in agriculture and 1 was in forestry or lumber production.

In the tertiary sector; 4 or 30.8% were in wholesale or retail sales or the repair of motor vehicles, 2 or 15.4% were in a hotel or restaurant, 2 or 15.4% were technical professionals or scientists, 2 or 15.4% were in education and 1 or 7.7% was in health care.

[8] From the 2000 census[update], 93 or 40.6% were Roman Catholic, while 59 or 25.8% belonged to the Swiss Reformed Church.

[9] As of 2000[update], there were 13 students from Burg im Leimental who attended schools outside the municipality.

[16] Albert Hofmann, discoverer of lysergic acid diethylamide, died here, on 29 April 2008.