Uusimaa in the context of "Southwest Finland"

Pornainen (Finnish: [ˈpornɑi̯nen]; Swedish: Borgnäs) is a small municipality of Finland. It is located in the province of Southern Finland and is part of the Uusimaa region. The neighboring municipalities are Askola in the east, Mäntsälä in the north, Porvoo in the southeast and Sipoo in the southwest. It is located 18 kilometres (11 mi) east of the town of Järvenpää.

The municipality has a population of 4,964 (30 June 2025) and covers an area of 150.09 square kilometres (57.95 sq mi) of which 3.59 km (1.39 sq mi) is water. The administrative centre of municipality is Kirveskoski (about 2,000 residents), also known as Pornainen's church village, and second largest village is Halkia (about 500 residents). The population density is 33.88 inhabitants per square kilometre (87.7/sq mi).

Helsinki (Swedish: Helsingfors) is the capital and most populous city in Finland. It is on the shore of the Gulf of Finland and is the seat of southern Finland's Uusimaa region. About 690,000 people live in the municipality, with 1.3 million in the capital region and 1.6 million in the metropolitan area. As the most populous urban area in Finland, it is the country's most significant centre for politics, education, finance, culture, and research. Helsinki is 80 kilometres (50 mi) north of Tallinn, Estonia, 400 kilometres (250 mi) east of Stockholm, Sweden, and 300 kilometres (190 mi) west of Saint Petersburg, Russia.

Together with the cities of Espoo, Vantaa and Kauniainen—and surrounding commuter towns, including the neighbouring municipality of Sipoo to the east—Helsinki forms a metropolitan area. This area is often considered Finland's only metropolis and is the world's northernmost metropolitan area with over one million inhabitants. Additionally, it is the northernmost capital of an EU member state. Helsinki is the third-largest municipality in the Nordic countries, after Stockholm and Oslo. Its urban area is the third-largest in the Nordic countries, after Stockholm and Copenhagen. Helsinki Airport, in the neighbouring city of Vantaa, serves the city with frequent flights to numerous destinations in Europe, North America, and Asia.

Pirkanmaa (Finnish: [ˈpirkɑmˌmɑː]; Swedish: Birkaland; Latin: Birkaria), also known as Tampere Region in government documents, is a region of Finland. It borders the regions of Satakunta, South Ostrobothnia, Central Finland, Päijät-Häme, Kanta-Häme and Southwest Finland. Most of the water area in the Kokemäki River watershed is located in the Pirkanmaa region, although Lake Vanajavesi is partly in the Kanta-Häme region. The region got its name from Pirkkala, which in the Middle Ages comprised most of present-day Pirkanmaa. Tampere is the regional center and capital of Pirkanmaa, and at the same time the largest city in the region.

The total population of Pirkanmaa was 529,100 on 30 June 2022, which makes it the second largest among Finland's regions after Uusimaa. The population density is well over twice the Finnish average, and most of its population is largely concentrated in the Tampere metropolitan area.

Kymenlaakso (Finnish: [ˈkymenˌlɑːkso]; Swedish: Kymmenedalen; lit. "Kymi/Kymmene Valley") is a region in Finland. It borders the regions of Uusimaa, Päijät-Häme, South Savo and South Karelia and Russia (Leningrad Oblast). Its name means literally The Valley of River Kymi. Kymijoki is one of the biggest rivers in Finland with a drainage basin with 11% of the area of Finland. The city of Kotka with 51,000 inhabitants is located at the delta of River Kymi and has the most important import harbour in Finland. Other cities are Kouvola further in the inland which has after a municipal merger 81,000 inhabitants and the old bastion town Hamina.

Kymenlaakso was one of the first industrialized regions of Finland. It became the most important region for paper and pulp industry in Finland. Since the late 1900s many plants have closed, which has caused some deindustrialization, unemployment and population decline in Kymenlaakso, especially in those communities that were built around plants in Kouvola.

Askola (Finnish pronunciation: [ˈɑskolɑ]) is a municipality of Finland. It is located in the Uusimaa region. The municipality has a population of 4,704 (30 June 2025) and covers an area of 218.03 square kilometres (84.18 sq mi) of which 5.61 km (2.17 sq mi) is water. The population density is 22.14 inhabitants per square kilometre (57.3/sq mi). Monninkylä is the largest village of the municipality in terms of population (1,326 inhabitants). Neighbouring municipalities are Myrskylä, Mäntsälä, Pornainen, Porvoo and Pukkila.

The municipality is unilingually Finnish. Askola is one of three municipalities in the Uusimaa region that do not have a Swedish name; the others are Nurmijärvi and Mäntsälä.

Mäntsälä (Finnish pronunciation: [ˈmæntsælæ]) is a municipality in the province of Southern Finland, and is part of the Uusimaa region. It has a population of 20,966(30 June 2025) and covers an area of 596.11 square kilometres (230.16 sq mi) ofwhich 15.26 km (5.89 sq mi)is water. The population density is36.1 inhabitants per square kilometre (93/sq mi). The municipality is unilingually Finnish. Mäntsälä is one of three municipalities in the Uusimaa region that do not have a Swedish name; the others are Nurmijärvi and Askola.

Mäntsälä lies about 60 kilometres (40 mi) north of Helsinki, the capital of Finland. During the last few years, the population of Mäntsälä has been one of the most rapidly increasing in Finland. A new railway, the Kerava–Lahti railway line, was built between Kerava and Lahti with passenger traffic starting on 4 September 2006 from Mäntsälä railway station. Helsinki is about 40 minutes away, and Lahti even closer. Highway 4 (E75) connecting both cities passes through Mäntsälä.

Porvoo (Finnish pronunciation: [ˈporʋoː]; Swedish: Borgå [ˈborːɡo] ; Latin: Borgoa) is a city in Finland. It is located on the south coast of the country, on the Gulf of Finland. Porvoo lies in the eastern part of the Uusimaa region. The population of Porvoo is approximately 52,000, while the sub-region has a population of approximately 60,000. It is the 19th most populous municipality in Finland, and the 15th most populous urban area in the country.

Porvoo is located on the southern coast of Finland, approximately 35 kilometres (22 mi) east of the city border of Helsinki and about 50 kilometres (30 mi) from the city centre. Porvoo was one of the six medieval towns of Finland, along with Turku, Ulvila, Rauma, Naantali and Vyborg, and is first mentioned as a city in texts from the 14th century. Porvoo is the seat of the Swedish-speaking Diocese of Borgå of the Evangelical Lutheran Church of Finland. Porvoo briefly served as the capital of the former Eastern Uusimaa region.

Järvenpää (Finnish: [ˈjærʋemˌpæː]; Swedish: Träskända, Finland Swedish: [ˈtreskenˌda]; lit. 'lake's end') is a town in Finland, located in the southern interior of the country. Järvenpää is situated in the centre of the Uusimaa region in the immediate vicinity of Lake Tuusula. The population of Järvenpää is approximately 47,000. It is the 24th most populous municipality in Finland. Järvenpää is part of the Helsinki Metropolitan Area, which has approximately 1.62 million inhabitants.

Järvenpää is located on the Helsinki-Riihimäki railway line in the Uusimaa region, about 37 kilometres (23 mi) north of Helsinki. Neighbouring municipalities are Tuusula, Sipoo and Mäntsälä. People also refer to Kerava as Järvenpää's neighbour, although technically they do not share a border due to the one kilometre-wide strip of land that belongs to Tuusula.

Kirveskoski (Finnish pronunciation: [ˈkirʋe̞s̠ˌkoski]; officially Pornaisten kirkonkylä) is a village of about 2000 inhabitants in Pornainen, Uusimaa, Finland, and the administrative center of the municipality. Next to the village is the Mustijoki River (Karjakoski by the village), which runs south to Porvoo and from there to the Gulf of Finland.

It is 20 kilometers from Kirveskoski to Järvenpää, 15 kilometers to Sipoo's administrative center Nikkilä, 24 kilometers to Porvoo, 17 kilometers to Askola, and 22 kilometers to Mäntsälä. From the northern part of Kirveskoski, regional road 146 runs west to Järvenpää and regional road 151 east to the village of Monninkylä in Askola municipality, while there is a connecting road 1494, which extends south to Nikkilä and north to national road 25 between Hanko and Mäntsälä.