# Tromsø
**Tromsø** is a city and municipality in Troms county, northern Norway, located at 69 degrees north, about 350 kilometers above the [Arctic Circle](https://www.edgepedia.org/arctic-circle). With 79,943 inhabitants as of 30 December 2025, it is among Norway's larger municipalities and describes itself as the Arctic capital, hosting the University of Tromsø (UiT), the University Hospital of North Norway, and the Norwegian Polar Institute.[1](https://www.tromso.kommune.no/en/node/31358) • [2](https://www.tromso.kommune.no/welcome)
| Key fact | Detail |
|---|---|
| Location | 69°N, 350 km above the Arctic Circle, in the Arctic as defined between the North Pole and the Arctic Circle[2](https://www.tromso.kommune.no/welcome) |
| Population | 79,943 (30 December 2025); the municipality calls itself the ninth largest in Norway, while Statistics Norway-based rankings place it 12th of 357[1](https://www.tromso.kommune.no/en/node/31358) • [3](https://norgestatus.no/kommune/tromso) |
| Population growth | 59,145 inhabitants in 2000 to 79,943 in 2026; growth of 3.7% over the five years 2021–2026[3](https://norgestatus.no/kommune/tromso) |
| Climate | Subarctic, with long winters and short summers; the coldest winter temperature ever recorded is −20.1 °C (February 1985) in more than 130 years of official records[1](https://www.tromso.kommune.no/en/node/31358) • [4](https://www.met.no/sokeresultat/_/attachment/inline/6cea9a39-b622-43ef-8442-9e389ec456b5%3A0b169633a775a6779a3fdceaaaa939fcd01c30f0/MET-report-06-2016.pdf) |
| Major institutions | UiT The Arctic University of Norway, University Hospital of North Norway (UNN), Tromsø municipality, and the Norwegian Polar Institute[1](https://www.tromso.kommune.no/en/node/31358) |
| Economy | Fishing and aquaculture, ICT, arctic science, life sciences, and a growing tourism industry[2](https://www.tromso.kommune.no/welcome) |
| Municipal finances | Registered in the ROBEK oversight register on 26 August 2026, with an accumulated overspend of 292.4 million kroner at the end of 2025[5](https://www.tromso.kommune.no/politikk/administrasjon/okonomisk-omstilling) |
## Geography and climate
Tromsø lies in the Arctic, defined as the region between the [North Pole](https://www.edgepedia.org/north-pole) and the Arctic Circle across the circumpolar area. Its neighboring municipalities are Balsfjord to the south, Storfjord to the east, and Karlsøy to the northeast. The largest built-up areas in the municipality are Tromsøya, Tromsdalen, and Kvaløysletta, with smaller settlements at Kjosen, Fagernes, and Movika.[1](https://www.tromso.kommune.no/en/node/31358)
The municipality has a subarctic climate, meaning long winters and short summers. The [Gulf Stream](https://www.edgepedia.org/gulf-stream) passes Tromsø, which the municipality credits for the absence of really cold winters. The Norwegian-language municipal fact page gives an average annual temperature of 2.2 degrees and about 911 millimeters of annual precipitation, while the English-language welcome page gives 3.3 degrees Celsius and about 1,050 millimeters.[1](https://www.tromso.kommune.no/en/node/31358) • [2](https://www.tromso.kommune.no/welcome) The Norwegian Meteorological Institute's report on the area records more than 130 years of official weather measurements, with a record winter low of −20.1 °C in February 1985, and notes that the coastal areas are moderated by the sea.[4](https://www.met.no/sokeresultat/_/attachment/inline/6cea9a39-b622-43ef-8442-9e389ec456b5%3A0b169633a775a6779a3fdceaaaa939fcd01c30f0/MET-report-06-2016.pdf)
## People
The population stood at 79,943 on 30 December 2025. As of March 2023, residents came from 138 nations, and the foreign-born population made up 16.4% of the total.[1](https://www.tromso.kommune.no/en/node/31358) The age profile is young by Norwegian standards: 16% of residents were 65 or older in 2026, against a national average of 23.7%, and people aged 20 to 39 made up 31.6% of the population.[3](https://norgestatus.no/kommune/tromso)
Growth has been continuous over the quarter century for which [Statistics Norway](https://www.edgepedia.org/statistics-norway) figures are tabulated, from 59,145 inhabitants in 2000 to 79,943 in 2026. Net migration was positive in 2025, with 4,221 people moving in and 4,065 moving out, a net gain of 156.[3](https://norgestatus.no/kommune/tromso)
## Economy and institutions
The largest public employers are UiT The Arctic University of Norway, the University Hospital of North Norway (UNN), and Tromsø municipality itself; the Norwegian Polar Institute is also based in the city. Major private-sector employers named by the municipality include KSAT, the Norwegian Seafood Council, and Sparebank1 Nord-Norge.[1](https://www.tromso.kommune.no/en/node/31358)
Tromsø is a fishing municipality with activity in both fisheries and aquaculture, and expertise in information and communication technology, arctic science, and the life sciences. Tourism has become increasingly important in recent years.[2](https://www.tromso.kommune.no/welcome)
## Municipal finances
Tromsø municipality has for years been in a strained financial position requiring restructuring and cost reductions. The 2025 annual accounts showed a positive gross operating result of 28.6 million kroner and a corrected net operating overspend of 68.8 million kroner, an improvement of 208 million kroner from 2024, but the overall result remained weak and the municipality sat just above the 3% threshold for entry into the ROBEK register of municipalities under financial oversight.[5](https://www.tromso.kommune.no/politikk/administrasjon/okonomisk-omstilling)
The situation worsened in 2026. The municipality was entered into ROBEK on 26 August 2026, and the accumulated overspend at the end of 2025 stood at 292.4 million kroner. The second tertial report of 2026 projected a corrected net operating result of only about 5 million kroner, near balance, and proposed cutting planned investments by 377 million kroner. Sickness absence was 10.6% as of June 2026.[5](https://www.tromso.kommune.no/politikk/administrasjon/okonomisk-omstilling)
## History
The present municipality was created by a merger that took effect on 1 January 1964, under a royal resolution of 14 June 1963. It combined the urban municipality of Tromsø with the rural municipalities of Tromsøysund and Ullsfjord, except for the Svensby area of Ullsfjord, and added the part of Hillesøy municipality on Kvaløya and the islands north of Hekkingen. The new municipality took the name Tromsø, and its first council, elected in 1963 for the period 1964 to 1967, had 69 representatives.[6](https://lovdata.no/forskrift/1963-06-14-16)
## International role
Tromsø has extensive international engagement and a list of sister cities that has included Kemi in Finland, Luleå in Sweden, Grimsby in England, Pune in India, Anchorage in Alaska, Zagreb in Croatia, Quetzaltenango in [Guatemala](https://www.edgepedia.org/guatemala), Gaza City in Palestine, and Nuuk in [Greenland](https://www.edgepedia.org/greenland). On 26 October 2022 the municipal council voted to terminate the sister-city agreements with the Russian cities of Murmansk, Arkhangelsk, and Nadym, as a mark of protest against Russia's war in Ukraine.[1](https://www.tromso.kommune.no/en/node/31358)
The municipality presents itself as the Arctic capital, with a role in developing and representing knowledge on arctic questions relevant to people and societies in the region, spanning politics, business, culture, research, indigenous rights, and the environment. The mayor of Tromsø is a member of the Arctic Mayors' Forum, whose secretariat is located in Tromsø.[1](https://www.tromso.kommune.no/en/node/31358) Tromsø will be a European Youth Capital in 2026, which the municipality links to its long tradition of youth participation.[7](https://www.tromso.kommune.no/sentraleplaner)
## References
1. [Fakta om Tromsø, Tromsø kommune](https://www.tromso.kommune.no/en/node/31358)
2. [Welcome to Tromsø – The gateway to the Arctic, Tromsø kommune](https://www.tromso.kommune.no/welcome)
3. [Tromsø kommune – folketall, bolig, jobb og natur, NorgeStatus](https://norgestatus.no/kommune/tromso)
4. [MET Report 06-2016, Norwegian Meteorological Institute](https://www.met.no/sokeresultat/_/attachment/inline/6cea9a39-b622-43ef-8442-9e389ec456b5%3A0b169633a775a6779a3fdceaaaa939fcd01c30f0/MET-report-06-2016.pdf)
5. [Økonomisk omstilling i Tromsø kommune, Tromsø kommune](https://www.tromso.kommune.no/politikk/administrasjon/okonomisk-omstilling)
6. [Forskrift om sammenslåing av Tromsø, Tromøysund, Ullsfjord og Hillesøy kommuner, Troms, Lovdata](https://lovdata.no/forskrift/1963-06-14-16)
7. [Sentrale planer og styringsdokumenter, Tromsø kommune](https://www.tromso.kommune.no/sentraleplaner)
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*Topic: Encyclopedia › Places and geography › Administrative and cadastral territories › Local administrative territories › Nordic and Baltic municipalities*
*Initially written Sep 17, 2026 · Reviewed: Sep 30, 2026; Oct 21, 2026 · Edited: Sep 30, 2026; Oct 15, 2026; Oct 21, 2026 · Last review: Oct 21, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license