Oberaargau

Template:Use dmy dates The Oberaargau is the region that encompasses the upper watershed of the Aar River in the canton of Bern in Switzerland. On the north, lie the Jura Mountains, and on the south the hills leading to the Emmental.

Administratively, the Oberaargau forms a district within the region Emmental-Oberaargau of the canton of Bern. Historically (until 2009), the Oberaargau comprised the two administrative districts of Wangen and Aarwangen.

Geography

It lies in the extreme northeast corner of the canton and includes the districts of Aarwangen and Wangen, and part of the district of Trachselwald. It is surrounded by the cantons of Solothurn, Aargau, and Lucerne. It is connected to the rest of the canton of Bern only in the south, where it borders on the Emmenthal.

The Oberaargau lies on the Swiss Plateau between the large population centers of Bern and Zürich and has therefore become a major thoroughfare for traffic running both east and west and north and south. The Aar River traverses it from west to east, and the primary motorway of Switzerland (the A1) and the main Bern-Zürich railway run through it, making it a central transport region.

The primary city is Langenthal, and the towns of Herzogenbuchsee, Wangen, and Aarwangen are important transportation centers. Since the building of the motorway, the primary economic development has taken place in the north, at the foot of the Jura Mountains, particularly in the towns of Wiedlisbach and Niederbipp.

The highest point in the Oberaargaus is the Höllchöpfli in the municipality of Rumisberg, at 1231 meters, and the lowest point is on the Aare at Wynau, at 405 meters.

Administrative district

Template:Template other The Oberaargau District in the Canton of Bern was created on 1 January 2010. It is part of the Emmental-Oberaargau administrative region and includes 45 municipalities over an area of Template:Swiss area, Template:Efn and as of Template:Swiss populations date, Template:Swiss populations residents.Template:Swiss populations ref

Border	Name	Population (Template:Swiss populations date)Template:Swiss populations ref	Area in km2Template:Swiss area data
Aarwangen	Aarwangen	Template:Swiss populations	Template:Swiss area
Attiswil	Attiswil	Template:Swiss populations	Template:Swiss area
Auswil	Auswil	Template:Swiss populations	Template:Swiss area
Bannwil	Bannwil	Template:Swiss populations	Template:Swiss area
Berken	Berken	Template:Swiss populations	Template:Swiss area
Bettenhausen	Bettenhausen	Template:Swiss populations	Template:Swiss area
Bleienbach	Bleienbach	Template:Swiss populations	Template:Swiss area
Busswil bei Melchnau	Busswil bei Melchnau	Template:Swiss populations	Template:Swiss area
Eriswil	Eriswil	Template:Swiss populations	Template:Swiss area
Farnern	Farnern	Template:Swiss populations	Template:Swiss area
Gondiswil	Gondiswil	Template:Swiss populations	Template:Swiss area
Graben	Graben	Template:Swiss populations	Template:Swiss area
Heimenhausen	Heimenhausen	Template:Swiss populations	Template:Swiss area
Herzogenbuchsee	Herzogenbuchsee	Template:Swiss populations	Template:Swiss area
Huttwil	Huttwil	Template:Swiss populations	Template:Swiss area
Inkwil	Inkwil	Template:Swiss populations	Template:Swiss area
Langenthal	Langenthal	Template:Swiss populations	Template:Swiss area
Lotzwil	Lotzwil	Template:Swiss populations	Template:Swiss area
Madiswil	Madiswil	Template:Swiss populations	Template:Swiss area
Melchnau	Melchnau	Template:Swiss populations	Template:Swiss area
Niederbipp	Niederbipp	Template:Swiss populations	Template:Swiss area
Niederönz	Niederönz	Template:Swiss populations	Template:Swiss area
Oberbipp	Oberbipp	Template:Swiss populations	Template:Swiss area
Ochlenberg	Ochlenberg	Template:Swiss populations	Template:Swiss area
Oeschenbach	Oeschenbach	Template:Swiss populations	Template:Swiss area
Reisiswil	Reisiswil	Template:Swiss populations	Template:Swiss area
Roggwil	Roggwil	Template:Swiss populations	Template:Swiss area
Rohrbach	Rohrbach	Template:Swiss populations	Template:Swiss area
Rohrbachgraben	Rohrbachgraben	Template:Swiss populations	Template:Swiss area
Rumisberg	Rumisberg	Template:Swiss populations	Template:Swiss area
Rütschelen	Rütschelen	Template:Swiss populations	Template:Swiss area
Schwarzhäusern	Schwarzhäusern	Template:Swiss populations	Template:Swiss area
Seeberg	Seeberg	Template:Swiss populations	Template:Swiss area
Thörigen	Thörigen	Template:Swiss populations	Template:Swiss area
Thunstetten	Thunstetten	Template:Swiss populations	Template:Swiss area
Ursenbach	Ursenbach	Template:Swiss populations	Template:Swiss area
Walliswil bei Niederbipp	Walliswil bei Niederbipp	Template:Swiss populations	Template:Swiss area
Walliswil bei Wangen	Walliswil bei Wangen	Template:Swiss populations	Template:Swiss area
Walterswil	Walterswil	Template:Swiss populations	Template:Swiss area
Wangen an der Aare	Wangen an der Aare	Template:Swiss populations	Template:Swiss area
Wiedlisbach	Wiedlisbach	Template:Swiss populations	Template:Swiss area
Wynau	Wynau	Template:Swiss populations	Template:Swiss area
Wyssachen	Wyssachen	Template:Swiss populations	Template:Swiss area
	Total	Template:Swiss populations	Template:Swiss area

Mergers

• On 1 January 2021 the former municipality of Obersteckholz merged into Langenthal.
• On 1 January 2024 the former municipality of Wangenried merged into Wangen an der Aare.

History

The region was already known as the Oberaargau in the early Middle Ages (in Latin superior pagus Aragauginsis). However, this concept also included the Emmenthal.

In the High Middle Ages, the area was divided among the counts of Froburg, Aarwangen (later Grünenberg), Zähringen (later the Habsburgs).

As the political influence of the city of Bern increased in the late Middle Ages, the Oberaargau came more and more into its sphere of influence. In the 15th century, Bern conquered both the Oberaargau and the Unteraargau and ruled them as one.

When Bern lost its old power in 1798, the Unteraargau became the modern canton of Aargau. The boundary between the Oberaargau and Unteraargau was fixed in 1798 along the Wigger River. In 1802, however, it was shifted west to Murg river. This action was confirmed by the Act of Mediation of Napoleon in 1803 and the Congress of Vienna in 1815.

References

Notes

Citations

External links

• Regional Web site (in German)
• Oberaargau in German, French and Italian in the online Historical Dictionary of Switzerland.