[4] Chêne-Bourg has an area, as of 2009[update], of 1.28 square kilometers (0.49 sq mi).

Of the rest of the land, 1.12 km2 (0.43 sq mi) or 87.5% is settled (buildings or roads).

[5] The municipality is located on the left bank of Lake Geneva and the Seymaz river.

Outside of the historic core, the municipality is densely populated, with a number of villas and small multi-family buildings.

[10] Most of the population (as of 2000[update]) speaks French (5,781 or 80.1%), with Portuguese being second most common (348 or 4.8%) and Italian being third (262 or 3.6%).

[11] As of 2008[update], the gender distribution of the population was 47.1% male and 52.9% female.

The greatest number of single family homes (79) were built between 1919 and 1945.

[10] The historical population is given in the following chart:[3][14] Louis Favre was born in Chêne-Bourg.

The pianist Dinu Lipatti is buried in the cemetery of Chêne-Bourg next to his wife Madeleine.

In the 2007 federal election the most popular party was the SP which received 20.11% of the vote.

In the federal election, a total of 1,807 votes were cast, and the voter turnout was 45.2%.

[15] In the 2009 Grand Conseil election, there were a total of 4,065 registered voters of which 1,525 (37.5%) voted.

The second most popular party was the Les Verts (with 15.6%), they were also second in the canton-wide election, while the third most popular party was the Les Socialistes (with 13.8%), they were fourth in the canton-wide election.

[16] For the 2009 Conseil d'Etat election, there were a total of 4,080 registered voters of which 1,788 (43.8%) voted.

[10] There were 3,606 residents of the municipality who were employed in some capacity, of which females made up 48.2% of the workforce.

In the tertiary sector; 439 or 29.3% were in wholesale or retail sales or the repair of motor vehicles, 66 or 4.4% were in the movement and storage of goods, 108 or 7.2% were in a hotel or restaurant, 142 or 9.5% were in the information industry, 68 or 4.5% were the insurance or financial industry, 170 or 11.3% were technical professionals or scientists, 90 or 6.0% were in education and 181 or 12.1% were in health care.

[10] From the 2000 census[update], 3,111 or 43.1% were Roman Catholic, while 1,053 or 14.6% belonged to the Swiss Reformed Church.

The education system in the Canton of Geneva allows young children to attend two years of non-obligatory Kindergarten.

The canton's school system provides two years of non-mandatory kindergarten and requires students to attend six years of primary school, with some of the children attending smaller, specialized classes.