Courtételle is a municipality in the district of Delémont in the canton of Jura in Switzerland.
Courtételle is first mentioned in 1178 as Curtetele.
Courtételle has an area of . Of this area, or 55.6% is used for agricultural purposes, while or 35.9% is forested. Of the rest of the land, or 8.2% is settled (buildings or roads), or 0.3% is either rivers or lakes and or 0.1% is unproductive land.
Of the built up area, housing and buildings made up 4.2% and transportation infrastructure made up 2.3%. Out of the forested land, 32.9% of the total land area is heavily forested and 3.0% is covered with orchards or small clusters of trees. Of the agricultural land, 31.8% is used for growing crops and 14.4% is pastures and 8.5% is used for alpine pastures. All the water in the municipality is flowing water.
The municipality is located in the Delémont district, above Delémont on the right bank of the Sorne river. It consists of the village of Courtételle and a number of scattered hamlets and farm houses.
The blazon of the municipal coat of arms is Gules, Coupeaux of Six Vert bordered Or.
Courtételle has a population () of . , 13.0% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 7%. Migration accounted for 1.2%, while births and deaths accounted for 3.9%.
Most of the population () speaks French (1,999 or 91.7%) as their first language, Italian is the second most common (57 or 2.6%) and German is the third (46 or 2.1%).
the population was 49.3% male and 50.7% female. The population was made up of 995 Swiss men (42.3% of the population) and 164 (7.0%) non-Swiss men. There were 1,052 Swiss women (44.7%) and 142 (6.0%) non-Swiss women. Of the population in the municipality, 859 or about 39.4% were born in Courtételle and lived there in 2000. There were 748 or 34.3% who were born in the same canton, while 264 or 12.1% were born somewhere else in Switzerland, and 272 or 12.5% were born outside of Switzerland.
children and teenagers (0–19 years old) make up 26.