Surveys per Year
Respondents per Source
| Asia Europe Survey | 1,000 |
| Comparative National Elections Project | 4,300 |
| Comparative Study of Electoral Systems | 6,723 |
| European Election Study – Voter Study | 11,032 |
| European Quality of Life Surveys | 4,081 |
| European Social Survey | 14,988 |
| European Values Study | 3,738 |
| Flash Eurobarometer | 210,236 |
| Integrated and United | 2,002 |
| International Social Survey Programme | 16,975 |
| Standard and Special Eurobarometer | 191,937 |
| Voice of the People | 5,533 |
Summary
Survey data for Portugal consists of 472,545 individual respondents in 469 surveys from 12 sources between 1985 and 2020
Suggestions
Please let us know about other nationally representative and freely available surveys not listed here. We aim to continue expanding and enable formatting any variable from any source.