Two referendums were held in Switzerland on 16 October 1966.[1] Voters were asked whether they approved of an amendment to the constitution on Swiss citizens living abroad and a popular initiative "for the fight against alcoholism".[1] The constitutional amendment was approved whilst the popular initiative was rejected.[1]
| Choice | Popular vote | Cantons | |||
|---|---|---|---|---|---|
| Votes | % | Full | Half | Total | |
| For | 491,220 | 68.1 | 19 | 6 | 22 |
| Against | 230,483 | 31.9 | 0 | 0 | 0 |
| Blank votes | 33,719 | – | – | – | – |
| Invalid votes | 1,163 | – | – | – | – |
| Total | 756,585 | 100 | 19 | 6 | 22 |
| Registered voters/turnout | 1,580,573 | 47.9 | – | – | – |
| align=left colspan=6 | Source: Nohlen & Stöver | ||||
| Choice | Votes | % |
|---|---|---|
| For | 174,242 | 23.4 |
| Against | 571,267 | 76.6 |
| Blank votes | 12,697 | – |
| Invalid votes | 1,164 | – |
| Total | 759,370 | 100 |
| Registered voters/turnout | 1,580,573 | 48.0 |
| align=left colspan=3 | Source: Nohlen & Stöver |