The 27 municipalities of the region of Southwest Finland (Finnish : Varsinais-Suomi; Swedish : Egentliga Finland) in Finland are divided into five sub-regions.
Kustavi (Gustavs)
Laitila (Letala)
Pyhäranta 
Taivassalo (Tövsala)
Uusikaupunki (Nystad)
Vehmaa (Vemo)| Coat of arms | Municipality | Population | Land area (km2) | Density (/km2) | Finnish speakers | Swedish speakers | Other speakers |
|---|---|---|---|---|---|---|---|
 | Aura | 3,972 | 95 | 42 | 97 % | 1 % | 3 % |
 | Kaarina | 36,563 | 151 | 243 | 88 % | 5 % | 7 % |
 | Koski Tl | 2,193 | 192 | 11 | 95 % | 0 % | 5 % |
 | Kimitoön | 6,350 | 687 | 9 | 30 % | 66 % | 4 % |
 | Kustavi | 952 | 166 | 6 | 95 % | 2 % | 5 % |
 | Laitila | 8,488 | 532 | 16 | 87 % | 0 % | 13 % |
 | Lieto | 20,687 | 301 | 69 | 94 % | 2 % | 5 % |
 | Loimaa | 15,265 | 848 | 18 | 94 % | 0 % | 6 % |
 | Marttila | 1,907 | 195 | 10 | 96 % | 1 % | 3 % |
 | Masku | 9,635 | 175 | 55 | 95 % | 1 % | 3 % |
 | Mynämäki | 7,464 | 520 | 14 | 95 % | 1 % | 4 % |
 | Naantali | 20,190 | 313 | 65 | 94 % | 1 % | 4 % |
 | Nousiainen | 4,676 | 199 | 24 | 95 % | 1 % | 4 % |
 | Oripää | 1,307 | 118 | 11 | 90 % | 0 % | 9 % |
 | Paimio | 11,237 | 239 | 47 | 94 % | 1 % | 5 % |
 | Pargas | 14,829 | 884 | 17 | 42 % | 54 % | 5 % |
 | Pyhäranta | 1,926 | 144 | 13 | 96 % | 1 % | 3 % |
 | Pöytyä | 7,984 | 750 | 11 | 94 % | 1 % | 5 % |
 | Raisio | 25,817 | 49 | 529 | 85 % | 1 % | 14 % |
 | Rusko | 6,402 | 127 | 50 | 95 % | 2 % | 3 % |
 | Salo | 50,785 | 1,987 | 26 | 90 % | 1 % | 9 % |
 | Sauvo | 2,953 | 253 | 12 | 91 % | 2 % | 7 % |
 | Somero | 8,420 | 668 | 13 | 93 % | 1 % | 7 % |
 | Taivassalo | 1,704 | 140 | 12 | 91 % | 1 % | 8 % |
 | Turku | 206,420 | 246 | 840 | 78 % | 5 % | 17 % |
 | Uusikaupunki | 14,764 | 503 | 29 | 91 % | 0 % | 9 % |
 | Vehmaa | 2,245 | 189 | 12 | 93 % | 1 % | 7 % |
| Total | 495,135 | 9,097 | 54 | 83 % | 6 % | 11 % |
Naantalin maalaiskunta (to Naantali in 1964)
Angelniemi (to Halikko in 1967)
Pargas landskommun (to Pargas in 1967)
Uskela (to Salo in 1967)
Maaria (to Turku in 1967)
Kakskerta (to Turku in 1968)
Hitis (to Dragsfjärd in 1969)
Karuna (to Sauvo in 1969)
Paattinen (to Turku in 1973)
Pyhämaa (to Uusikaupunki in 1974)
Metsämaa (to Loimaan kunta in 1976)
Karjala (to Mynämäki in 1977)
Somerniemi (to Somero in 1977)
Lokalahti (to Uusikaupunki in 1981)
Kalanti (to Uusikaupunki in 1993)
Loimaan kunta (to Loimaa in 2005)
Karinainen (to Pöytyä in 2005)
Mietoinen (to Mynämäki in 2007)
Piikkiö (to Kaarina in 2009)
Dragsfjärd (formed Kimitoön with Kimito and Västanfjärd in 2009)
Kimito (formed Kimitoön with Dragsfjärd and Västanfjärd in 2009)
Västanfjärd (formed Kimitoön with Dragsfjärd and Kimito in 2009)
Alastaro (to Loimaa in 2009)
Mellilä (to Loimaa in 2009)
Houtskär (formed Väståboland in 2009)
Iniö (formed Väståboland in 2009)
Korpo (formed Väståboland in 2009)
Nagu (formed Väståboland in 2009)
Pargas (formed Väståboland in 2009)
Askainen (to Masku in 2009)
Lemu (to Masku in 2009)
Merimasku (to Naantali in 2009)
Rymättylä (to Naantali in 2009)
Velkua (to Naantali in 2009)
Yläne (to Pöytyä in 2009)
Vahto (to Rusko in 2009)
Halikko (to Salo in 2009)
Kiikala (to Salo in 2009)
Kisko (to Salo in 2009)
Kuusjoki (to Salo in 2009)
Muurla (to Salo in 2009)
Perniö (to Salo in 2009)
Pertteli (to Salo in 2009)
Suomusjärvi (to Salo in 2009)
Särkisalo (to Salo in 2009)
Tarvasjoki (to Lieto in 2015) 
Media related to Municipalities in Finland Proper at Wikimedia Commons
