# 2005 Basque regional election

[Spain](https://electionsarchive.com/es.md) / [País Vasco](https://electionsarchive.com/es/pais-vasco.md), April 17, 2005

Turnout: 1,223,634 of 1,799,500 registered voters (68.0%). −11.0 points since 2001.

## Basque Parliament

EAJ-PNV / EA won 29 of the 75 seats, with 38.7% of the vote.

| Candidate or party | Votes | Share | Seats | Change |
| --- | --- | --- | --- | --- |
| EAJ-PNV / EA | 468,117 | 38.7% | 29 | −4 |
| Spanish Socialist Workers' Party | 274,546 | 22.7% | 18 | +5 |
| Partido Popular | 210,614 | 17.4% | 15 | −4 |
| PCTV-EHAK | 150,644 | 12.4% | 9 |  |
| Plural left | 65,023 | 5.4% | 3 | 0 |
| ARALAR | 28,180 | 2.3% | 1 |  |
| UNIDAD ALAVESA | 4,117 | 0.3% |  |  |
| BERDEAK-PACMA | 4,049 | 0.3% |  |  |
| PARTIDO OBRERO SOCIALISTA INTERNACIONALISTA | 2,354 | 0.2% |  |  |
| PARTIDO HUMANISTA | 1,514 | 0.1% |  | 0 |
| PUM+J | 1,261 | 0.1% |  |  |
| PARTIDO CARLISTA | 179 | <0.1% |  | 0 |

These results come from Gobierno Vasco.

## Contests

- [Álava](https://electionsarchive.com/es/pv/2005-04-17-general/alava.md)
- [Bizkaia](https://electionsarchive.com/es/pv/2005-04-17-general/bizkaia.md)
- [Gipuzkoa](https://electionsarchive.com/es/pv/2005-04-17-general/gipuzkoa.md)

## Party system indices

[How these indices are computed](https://electionsarchive.com/indices.md)

| Chamber | Effective parties by votes | Effective parties by seats | Gallagher index | Loosemore–Hanby index | Volatility | Nationalization |
| --- | --- | --- | --- | --- | --- | --- |
| Basque Parliament | 4.00 | 3.80 | 2.4 | 3.9 | 20.5 | 0.91 |

- From 1,210,598 votes and 75 seats.
- Compared with [2001 Basque regional election](https://electionsarchive.com/es/pv/2001-05-13-general.md).
- Measured over 3 provinces.
- A large party has no recorded predecessor or successor, so its whole share counts as change.
- Measured over fewer than ten places, so read it loosely.

Also available as HTML at https://electionsarchive.com/es/pv/2005-04-17-general and JSON at https://electionsarchive.com/es/pv/2005-04-17-general.json.