Tenero-Contra has a population () of . , 26.2% of the population are resident foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 9.2%. Most of the population () speaks
Italian (79.5%), with
German being second most common (12.1%) and
Serbo-Croatian being third (1.7%). Of the Swiss national languages (), 277 speak German, 32 people speak
French, 1,824 people speak Italian, and 3 people speak
Romansh. The remainder (159 people) speak another language. , the gender distribution of the population was 48.3% male and 51.7% female. The population was made up of 906 Swiss men (34.6% of the population), and 357 (13.6%) non-Swiss men. There were 1,035 Swiss women (39.5%), and 319 (12.2%) non-Swiss women. , there were 992 private households in the municipality, and an average of 2.3 persons per household. The vacancy rate for the municipality, , was 1.07%. there were 1,275 apartments in the municipality. The most common apartment size was the 4 room apartment of which there were 396. There were 53 single room apartments and 172 apartments with five or more rooms. Of these apartments, a total of 990 apartments (77.6% of the total) were permanently occupied, while 220 apartments (17.3%) were seasonally occupied and 65 apartments (5.1%) were empty. The Australian-born Nobel Prize winner
Sir John Carew Eccles (1903–1997) lived and died in Tenero-Contra. ==Politics==