Kokkola is a town in Finland and the regional capital of Central Ostrobothnia. It is located on the west coast of the country, on the Gulf of Bothnia. The population of Kokkola is approximately 48,000, while the sub-region has a population of approximately 54,000. It is the 22nd most populous municipality in Finland, and the 20th most populous urban area in the country.
Ii is a municipality of Finland. It is situated by the Bothnian Bay, at the mouth of river Iijoki, and it is part of the Northern Ostrobothnia region. The municipality has a population of 9,784 and covers an area of 2,872.44 km2 (1,109.06 sq mi) of which 1,256.69 km2 (485.21 sq mi) is water. The population density is 6.06/km2 (15.7/sq mi).
Kajaani, historically known as Cajanaburg, is a town in Finland and the regional capital of Kainuu. Kajaani is located southeast of Lake Oulu, which drains into the Gulf of Bothnia through the Oulu River. The population of Kajaani is approximately 37,000, while the sub-region has a population of approximately 51,000. It is the 32nd most populous municipality in Finland.
Ylöjärvi is a town in Finland, located in the Pirkanmaa region. It lies to the west of the regional capital, Tampere. The population of Ylöjärvi is approximately 34,000, while the metropolitan area has a population of approximately 423,000. It is the 35th most populous municipality in Finland, and the third largest in the Pirkanmaa region after Tampere and Nokia.
Oulunsalo is former municipality in the region of Northern Ostrobothnia, in Finland. It was founded in 1882 and merged into the city of Oulu on 1 January 2013, along with Haukipudas, Kiiminki and Yli-Ii. The municipality had a population of 9,746 and covered an area of 211.22 square kilometres (81.55 sq mi), of which 127.86 km2 (49.37 sq mi) is water. Its population density was 116.915/km2 (302.81/sq mi).
Hailuoto is a Finnish island in the northern Baltic Sea and a municipality in Northern Ostrobothnia region. The population of Hailuoto is 924, making it the smallest municipality in Northern Ostrobothnia and the former Oulu Province in terms of population. The municipality covers an area of 205.65 km2 (79.40 sq mi) of which 1.70 km2 (0.66 sq mi) is inland water. The population density is 4.49/km2 (11.6/sq mi). Of all the Finnish sea islands, Hailuoto is the third largest after Fasta Åland and Kimitoön.
Kalajoki is a coastal town and municipality of Finland. It is located in the immediate vicinity of the Gulf of Bothnia in the province of Oulu and is part of the Northern Ostrobothnia region.
Kiiminki was a municipality of Finland. Along with Haukipudas, Oulunsalo and Yli-Ii municipalities it was merged with the city of Oulu on 1 January 2013. Kiiminki municipality was part of the Oulu province in the Northern Ostrobothnia region. The municipality had a population of 13,320 and covered an area of 339.00 square kilometres (130.89 sq mi) of which 326.82 km2 (126.19 sq mi) is water. The population density is 1,093.6/km2 (2,832.4/sq mi).
Kuusamo is a town and municipality in Finland. It is located in Koillismaa, the northeastern part of the Northern Ostrobothnia region. The municipality has a population of 14,783 and covers an area of 5,808.92 square kilometres (2,242.84 sq mi) of which 830.81 km2 (320.78 sq mi) is water. The population density is 2.97 inhabitants per square kilometre (7.7/sq mi).
Riihimäki is a town and municipality in the south of Finland, about 69 kilometres (43 mi) north of Helsinki and 109 kilometres southeast of Tampere. An important railway junction is located in Riihimäki, since railway tracks from Riihimäki lead to Helsinki, Tampere and Lahti. Several businesses also operate in Riihimäki. Notably, Würth Oy has its Finnish headquarters and logistics center in Riihimäki. Valio has a major dairy in the Herajoki part of Riihimäki. The famous Sako rifles are also produced in Riihimäki.
Yli-Ii was a municipality of Finland. It was located in the province of Oulu and was part of the Northern Ostrobothnia region. Alongside Haukipudas, Kiiminki and Oulunsalo municipalities it was merged with the city of Oulu on 1 January 2013. The municipality had a population of 2,179 and covered an area of 793.27 square kilometres (306.28 sq mi) of which 24.12 km2 (9.31 sq mi) is water. The population density was 2.8330/km2 (7.3374/sq mi).
Ylikiiminki is a former municipality of Finland. It was consolidated with the city of Oulu on 1 January 2009.
The Bothnian Bay or Bay of Bothnia is the northernmost part of the Gulf of Bothnia, which is in turn the northern part of the Baltic Sea. The land holding the bay is still rising after the weight of ice-age glaciers has been removed, and within 2,000 years the bay will be a large freshwater lake since its link to the south Kvarken is mostly less than 20 metres (66 ft) deep. The bay today is fed by several large rivers, and is relatively unaffected by tides, so has low salinity. It freezes over each year for up to six months. Compared to other parts of the Baltic, it has little plant or animal life.
The Province of Oulu was a province of Finland from 1775 to 2009. It bordered the provinces of Lapland, Western Finland and Eastern Finland and also the Gulf of Bothnia and Russia.
Vaasa, in the years 1855–1917 known as Nikolainkaupunki, is a city in Finland and the regional capital of Ostrobothnia. It is located on the west coast of the country, on the Gulf of Bothnia. The population of Vaasa is approximately 70,000, while the sub-region has a population of approximately 111,000. It is the 14th most populous municipality in Finland, and the tenth most populous urban area in the country.
Haukipudas is a district of Oulu, Finland. Together with Jokikylä and Martinniemi districts, it forms the Haukipudas area. Haukipudas is located in the river delta of the Kiiminkijoki river. It is bounded by the Bothnian Bay in the west, National road 4 in the east, Martinniemi district in the north and Kello district in the south. The district was established in 2013 when the Haukipudas municipality together with Kiiminki, Oulunsalo and Yli-Ii municipalities were merged with the city of Oulu.
Kiiminki is a district of Oulu, Finland. Together with Alakylä, Hannus and Huttukylä districts, it forms the Kiiminki area. The center of the district is located where the National road 20 crosses the Kiiminkijoki river. The district was established in 2013 when the Kiiminki municipality together with Haukipudas, Oulunsalo and Yli-Ii municipalities were merged with the city of Oulu.
Oulujoki is a former municipality of Finland. The municipality had a population of 5,230 (1963) and covered a land area of 606.1 square kilometres (234.0 sq mi). Its neighbouring municipalities were Kempele, Kiiminki, Muhos, Oulu, Tyrnävä, Utajärvi and Ylikiiminki. The municipality was named after the river Oulujoki.
