Sipoo in the context of "Helsinki capital region"

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.

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.

Vantaa (Finnish pronunciation: [ˈʋɑntɑː]; Swedish: Vanda, Finland Swedish: [ˈvɑnːdɑ]) is a city in Finland. It is located to the north of the capital, Helsinki, in southern Uusimaa. The population of Vantaa is approximately 253,000. It is the 4th most populous municipality in Finland. Vantaa is part of the Helsinki Metropolitan Area, which has approximately 1.6 million inhabitants.

The administrative centre of Vantaa is located in the Tikkurila district. Vantaa lies in Southern Finland and shares borders with Helsinki, the Finnish capital, to the south, Espoo to the southwest, Nurmijärvi to the northwest, Kerava and Tuusula to the north, and Sipoo to the east. The city covers a total area of 240.35 square kilometres (92.80 sq mi), of which 1.97 km (0.76 sq mi) is water.

Kerava (Finnish pronunciation: [ˈkerɑʋɑ]; Swedish: Kervo) is a town in Finland, located in the southern interior of the country. Kerava is situated in the centre of the Uusimaa region. The population of Kerava is approximately 39,000. It is the 30th most populous municipality in Finland. Kerava is part of the Helsinki Metropolitan Area, which has approximately 1.62 million inhabitants.

Kerava's neighbouring municipalities are Vantaa, Sipoo and Tuusula.

Nikkilä (Finnish: [ˈnikːilæ]; Swedish: Nickby [ˈnikːbyː]) is a village located in the Sipoo municipality in the Uusimaa region of the Southern Finland province. Nikkilä is the largest village and the administrative centre of Sipoo.

From 1914 until 1999 there was a psychiatric hospital in Nikkilä/Nickby, built by the city of Helsinki. The hospital's name was The Psychiatric hospital of Helsinki, Nikkilä.(Finnish: Nikkilän mielisairaala, Swedish: Helsingfors Sjukhus Nickby).

Söderkulla (Swedish pronunciation: [ˈsøːdərˌkulːɑ]; literally meaning the "south hill") is a village in the southern part of the Sipoo municipality in Uusimaa, Finland. It is located along the Regional road 170 and the Porvoo Highway (E18), and about 10 kilometres (6.2 mi) north of Söderkulla is Nikkilä, the administrative center of Sipoo. The distance to the center of Helsinki from Söderkulla is about 30 kilometres (19 mi) and to the center of Porvoo about 24 kilometres (15 mi). Söderkulla has one of Sipoo's significant growth centers alongside Nikkilä; at the end of 2017, Söderkulla had a population of 3,782. In the zoning, the construction of the municipality will continue to be emphasized in these areas. Among other things, the construction of a 3,000 square meter shopping center has been approved near the center of Söderkulla.

Söderkulla has comprehensive basic services. A few hundred meters apart are a health center, a dental clinic, Alko, a pharmacy, the Linda's service center for the elderly, a gym, R-kioski, a library, three grocery stores (such as K-Supermarket), a kindergarten and the South Sipoo School. In connection with primary school, there is also a Swedish-language Söderkulla skolan. In 2018, Söderkulla Church, designed by Juhani Aalto, was completed in Söderkulla and also as a parish center with study rooms, club rooms and a youth center. The church is used by both the Finnish and Swedish parishes in Sipoo. The building utilizes geothermal and solar energy.