
Reykjavík is the capital and largest city of Iceland. It is located in southwestern Iceland, on the southern shore of Faxaflói bay. Its latitude is 64°08' N, making it the world's northernmost capital of a sovereign state. With a population of around 131,136, it is the center of Iceland's cultural, economic, and governmental activity, and is a popular tourist destination.

Árbær is a district within the city of Reykjavík, Iceland. It includes five neighbourhoods: Árbær proper, Ártúnsholt, Norðlingaholt, Selás and the industrial area Hálsar. The area has approximately 13,000 inhabitants.

Breiðholt is a southeastern district of Reykjavík, Iceland. It includes three neighbourhoods: Neðra-Breiðholt, Efra-Breiðholt and Seljahverfi (Sel). It is one of the largest districts in Reykjavík, with a population of around 20,000.The neighborhood has the highest amount of foreign born residents of any in Reykjavik.

Úlfarsfell or Grafarholt og Úlfarsárdalur, is a district of Reykjavík, the capital of Iceland, and forms part of the eastern suburbs.
Grafarvogur is among the largest residential districts of Reykjavík, Iceland. It is a relatively new neighbourhood, major construction began in the late 1980s and continued well into the 1990s.

Háaleiti og Bústaðir is a district of Reykjavík, the capital of Iceland. Within the district are four neighbourhoods: Háaleiti proper, Kringla, Gerði and Fossvogur.
Hlíðar or Hlíðahverfi is a sub-municipal administrational district within Reykjavík, Iceland. It includes six neighbourhoods: Hlíðar proper, Norðurmýri, Holt, Hlemmur, Suðurhlíðar and Öskjuhlíð.

Kjalarnes is the least populous district in the municipality of Reykjavík, the capital of Iceland, with a population of around 600 inhabitants.

Laugardalur is a district of Reykjavík, the capital of Iceland. It is just east of the city centre and contains various recreational facilities including the main stadium. The name means "hot spring valley", as washing laundry was once done in geothermal hot springs there until the 1930s.

Reykjavík City Center is a sub-municipal administrational district that covers much of the central part Reykjavík, the capital of Iceland. The district includes six neighbourhoods: Kvos, Grjótaþorp, Skólavörðuholt, Þingholt, Skuggahverfi and Vatnsmýri.

Vesturbær is a district in Reykjavík in Iceland, comprising eight neighbourhoods west of the city center: Gamli Vesturbær, Bráðræðisholt, Grandahverfi, Hagahverfi, Melar, Skjól, Grímsstaðaholt, Skildinganes and Litli Skerjafjörður.