By the 13th century, a bridge was built over the Aare river, which connected the village to regional center of power in Aarwangen.

For a few decades, Bern and Solothurn shared authority over the parish of Niederbipp, which included Schwarzhäusern.

[3] During the 17th and 18th centuries cottage industry weaving began to supplement agriculture in the local economy.

During the 19th century, as agriculture became increasingly mechanized and required fewer workers, many residents were forced to emigrate to find work.

At the beginning of the 21st century, agriculture and small businesses provide only 17% of the jobs in the municipality and about three-quarters of the workers commute to nearby towns for work.

It shares an upper secondary school with Bannwil and Aarwangen and a Gymnasium with Langenthal.

Of the rest of the land, 0.39 km2 (0.15 sq mi) or 10.3% is settled (buildings or roads), 0.11 km2 (27 acres) or 2.9% is either rivers or lakes.

[5] Schwarzhäusern lies in the Oberaargau in the Swiss plateau on the left bank of the Aare and the border with the Canton of Solothurn.

It consists of the village of Schwarzhäusern and the hamlets of Rufshusen and Moosbach as well as scattered farm houses.

At the southern end of the municipality the Aare has a reservoir created by the hydroelectric plant of Wynau.

[6] The blazon of the municipal coat of arms is Argent on a Base Vert two Houses Sable and in chief a Mullet Azure.

[10] The historical population is given in the following chart:[3][13] In the 2011 federal election the most popular party was the SVP which received 44.5% of the vote.

In the tertiary sector; 45 or 83.3% were in wholesale or retail sales or the repair of motor vehicles, 2 or 3.7% were in the movement and storage of goods, 3 or 5.6% were in a hotel or restaurant, 1 was a technical professional or scientist, 1 was in education.

[10] From the 2000 census[update], 45 or 10.3% were Roman Catholic, while 362 or 82.6% belonged to the Swiss Reformed Church.

This is followed by three years of obligatory lower Secondary school where the students are separated according to ability and aptitude.