Seltisberg is a municipality in the district of Liestal in the canton of Basel-Landschaft in Switzerland. Seltisberg is first mentioned in 1194 as Selboldisberch. Seltisberg has an area, , of . Of this area, or 45.7% is used for agricultural purposes, while or 37.0% is forested. Of the rest of the land, or 16.0% is settled (buildings or roads). Of the built up area, housing and buildings made up 8.7% and transportation infrastructure made up 3.9%. Power and water infrastructure as well as other special developed areas made up 2.2% of the area Out of the forested land, all of the forested land area is covered with heavy forests. Of the agricultural land, 16.5% is used for growing crops and 25.5% is pastures, while 3.6% is used for orchards or vine crops. The municipality is located in the Liestal district, on a high plateau in the Jura Mountains between the Hinteren Frenken valley and the Oris valley. The blazon of the municipal coat of arms is Per fess, Gules, a Rose Argent, centered Or and lapped Vert, and Argent. Seltisberg has a population () of . , 5.3% of the population are resident foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 11.3%. Most of the population () speaks German (1,166 or 95.8%), with French being second most common (20 or 1.6%) and English being third (12 or 1.0%). There is 1 person who speaks Romansh. the gender distribution of the population was 48.1% male and 51.9% female. The population was made up of 1,201 Swiss citizens (93.2% of the population), and 87 non-Swiss residents (6.8%) Of the population in the municipality 300 or about 24.7% were born in Seltisberg and lived there in 2000. There were 384 or 31.6% who were born in the same canton, while 380 or 31.2% were born somewhere else in Switzerland, and 110 or 9.0% were born outside of Switzerland. In there were 9 live births to Swiss citizens and were 5 deaths of Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens increased by 4 while the foreign population remained the same.