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Regional elections were held in Denmark on 8 March 1966. 10005 municipal council members were elected to the 1 April 1966 - 31 March 1970 term of office in more than 1,100 municipalities, as well as 303 members of the 25 counties of Denmark.
The results of the regional elections: [1]
| Party | Seats | 
|---|---|
| Liberals (Venstre) (D) | 115 | 
| Social Democrats (Socialdemokratiet) (A) | 99 | 
| Conservative People's Party (Det Konservative Folkeparti) (C) | 59 | 
| Social Liberal Party (Det Radikale Venstre) (B) | 22 | 
| Schleswig Party (Slesvigsk Parti) (S) | 3 | 
| Socialist People's Party (Socialistisk Folkeparti) (F) | 1 | 
| Others | 4 | 
| Total | 303 | 
| Party | Seats | 
|---|---|
| Social Democrats (Socialdemokratiet) (A) | 2638 | 
| Liberals (Venstre) (V) | 1747 | 
| Conservative People's Party (Det Konservative Folkeparti) (C) | 842 | 
| Social Liberal Party (Det Radikale Venstre) (B) | 340 | 
| Socialist People's Party (Socialistisk Folkeparti) (F) | 74 | 
| Schleswig Party (Slesvigsk Parti) (S) | 42 | 
| Justice Party of Denmark (Retsforbundet) (E) | 8 | 
| Others | 4170 | 
| Outside election | 136 | 
| Total | 10005 |