Starrkirch-Wil is a municipality in the district of Olten in the canton of Solothurn in Switzerland.

[3] Starrkirch-Wil has an area, as of 2009[update], of 1.84 square kilometers (0.71 sq mi).

Of the rest of the land, 0.53 km2 (0.20 sq mi) or 28.8% is settled (buildings or roads).

[4] The municipality is located in the Olten district, between the Aare river and the northern slope of the Engelberg mountain chain.

It consists of the main villages of Starrkirch and Wil, settlement of Wartburg and the settlement around the ruins of Vordere Wartburg Castle, which is commonly called Sälischlössli.

The blazon of the municipal coat of arms is Azure a Church Argent massoned Sable.

[8] Most of the population (as of 2000[update]) speaks German (1,170 or 93.4%), with Italian being second most common (27 or 2.2%) and Spanish being third (8 or 0.6%).

[7] The age distribution, as of 2000[update], in Starrkirch-Wil is; 102 children or 8.1% of the population are between 0 and 6 years old and 155 teenagers or 12.4% are between 7 and 19.

The greatest number of single family homes (53) were built between 1946 and 1960.

[8] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the SP which received 29.54% of the vote.

In the federal election, a total of 687 votes were cast, and the voter turnout was 61.5%.

[8] There were 678 residents of the municipality who were employed in some capacity, of which females made up 42.8% of the workforce.

In the tertiary sector; 18 or 11.8% were in wholesale or retail sales or the repair of motor vehicles, 6 or 3.9% were in the movement and storage of goods, 28 or 18.4% were in a hotel or restaurant, 6 or 3.9% were technical professionals or scientists, 13 or 8.6% were in education and 4 or 2.6% were in health care.

[8] From the 2000 census[update], 499 or 39.8% were Roman Catholic, while 409 or 32.6% belonged to the Swiss Reformed Church.

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

All the lower secondary students from Starrkirch-Wil attend their school in a neighboring municipality.