United cities

United cities refers to the neighbouring cities divided by political borders, that were united, when due to political changes they happened in the same entity. (See also Divided cities)
*Beirut united in 1990
**East Beirut 1975–1990
**West Beirut 1975–1990
*Berlin united in 1990
**West Berlin 1945–1990
**East Berlin 1945–1990
*Budapest united in 1873
**Buda
**Pest
**Obuda
*Jerusalem united in 1967 under Israeli control (remains two entities according to internationally recognised borders)
** western Jerusalem - 1948–1967 under Israeli rule
** East Jerusalem (al Quds) - 1948–1967 under Jordanian rule
*Golub-Dobrzyń united in 1951 12,500 inhabitants
**Golub existed since 1296
**Dobrzyń city since 1789
*Bielsko-Biała
**Bielsko
**Biala
*Rijeka
**Fiume
**Sušak
*Helena-West Helena, Arkansas in the United States united in 2006
**Helena, Arkansas
**West Helena, Arkansas

The Canadian city of Lloydminster, although divided by a provincial border, can be considered a "united city" as it is administered as a single city through a special joint agreement between the provinces of Alberta and Saskatchewan. Similarly, the city of Flin Flon, which straddles the Manitoba-Saskatchewan border, is also administered as a single city by a similar joint agreement.