The capital of Estonia has about 400,000 inhabitants. It has a tram network with a system length of almost 20 kilometres and a track gauge of 1,067 mm (3 ft 6 in). The tram as well as the buses and trolleybuses in Tallin are operated by a municipal company named → TLT (Tallinna Linnatranspordi AS).
Riga is the capital of Latvia and is the largest metropolitan area in the Baltic region, with around 700,000 inhabitants. The city has a comparatively large tram network with a system length of about 100 kilometres. The railways run on Russian broad-gauge tracks (1,524 mm). Apart from the modern Škoda low-floor cars, all vehicles still have trolley poles instead of pantographs. The headways are quite different: while e.g. the line 6 runs approx. every 5 minutes (peak), on other lines, waiting times of 20-30 minutes are not a rarity. The operator of Riga's urban transport is called → Rīgas satiksme.
Daugavpils is the second largest city in Latvia after the capital Riga and has almost 100,000 inhabitants. It has three tram lines, but only one runs in a high frequency (approx. every 10 minutes). The other two routes are only served half-hourly. Unfortunately, there are only single tickets and monthly tickets. Since there is no transfer allowed with a single ticket ticket, a new ticket has to be purchased after every change. This can quickly lead to a considerable number of tickets in the purse. Trams and city buses are operated by a municipal company named → Daugavpils Satiksme.
Liepāja is a harbour town in the west of Latvia on the Baltic Sea and has about 80,000 inhabitants. The city has an almost eight kilometre long tram line, which runs on metre-gauge tracks and in relatively short intervals (partly every 7 minutes). The tram is operated by a municipal company called → SIA Liepājas tramvajs.