Aeschi is a municipality in the district of Wasseramt in the canton of Solothurn in Switzerland.

Aeschi has an area, as of 2009[update], of 3.8 square kilometers (1.5 sq mi).

Of the rest of the land, 0.55 km2 (0.21 sq mi) or 14.5% is settled (buildings or roads), 0.16 km2 (0.062 sq mi) or 4.2% is either rivers or lakes and 0.04 km2 (9.9 acres) or 1.1% is unproductive land.

[3] After the 2012 merger, the area increased to 5.4 square kilometers (2.1 sq mi).

[3] The municipality is located in the Wasseramt district, in the upper moraine landscape along the Solothurn-Herzogenbuchsee main road.

[4] The blazon of the municipal coat of arms is Gules an Anchored Cross Sable over an Angle plate Or between four Mullets of the last over a Mount of 3 Coupeaux Vert.

[8] Most of the population (as of 2000[update]) speaks German (975 or 96.1%), with Albanian being second most common (22 or 2.2%) and Italian being third (5 or 0.5%).

[7] The age distribution, as of 2000[update], in Aeschi is; 70 children or 6.9% of the population are between 0 and 6 years old and 198 teenagers or 19.5% are between 7 and 19.

The greatest number of single family homes (51) were built between 1971 and 1980.

[8] The historical population is given in the following chart:[13][14] The Burgäschisee, a prehistoric lake shore settlement, is listed as a Swiss heritage site of national significance.

[15] The settlement at Burgäschisee Ost is part of the Prehistoric Pile dwellings around the Alps a UNESCO World Heritage Site.

[16] In the 2007 federal election the most popular party was the SP which received 24.86% of the vote.

In the federal election, a total of 410 votes were cast, and the voter turnout was 50.7%.

[8] There were 552 residents of the municipality who were employed in some capacity, of which females made up 41.1% of the workforce.

In the tertiary sector; 14 or 31.1% were in wholesale or retail sales or the repair of motor vehicles, 5 or 11.1% were in the movement and storage of goods, 9 or 20.0% were in a hotel or restaurant, 2 or 4.4% were in the information industry, 6 or 13.3% were the insurance or financial industry, 2 or 4.4% were technical professionals or scientists, 5 or 11.1% were in education.

[8] From the 2000 census[update], 409 or 40.3% were Roman Catholic, while 421 or 41.5% belonged to the Swiss Reformed Church.