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

In 1993, Heinrichswil and Winistorf merged again, but Hersiwil remained independent.

[2] Hersiwil had an area, as of 2009[update], of 1.43 square kilometers (0.55 sq mi).

The blazon of the municipal coat of arms is Or a Ploughshare doubled Sable.

At the same time, there was 1 non-Swiss woman who migrated from another country to Switzerland.

[6] The age distribution, as of 2000[update], in Hersiwil is; 18 children or 10.7% of the population are between 0 and 6 years old and 31 teenagers or 18.5% are between 7 and 19.

The greatest number of single family homes (10) were built between 1991 and 1995.

[7] The historical population is given in the following chart:[2][12] In the 2007 federal election the most popular party was the CVP which received 30.17% of the vote.

In the federal election, a total of 86 votes were cast, and the voter turnout was 61.0%.

[7] There were 86 residents of the municipality who were employed in some capacity, of which females made up 43.0% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 16.

The number of jobs in the secondary sector was 9 of which 1 was in manufacturing and 8 were in construction.

The number of jobs in the tertiary sector was 1, in the movement and storage of goods.

[7] From the 2000 census[update], 102 or 60.7% were Roman Catholic, while 52 or 31.0% belonged to the Swiss Reformed Church.