Argentina Legislative election 2017 — Results
Election day: October 22, 2017
- Cambiemos: 41.75%, 61 seats
- Peronism (Unidad Ciudadana / Justicialist): 38.79%, 54 seats
- Provincial parties & others: 13.49%, 8 seats
- 1País / Federal Peronism: 5.97%, 4 seats
Turnout: 76.82%
About this election
The electoral system
Half of the 257-seat Chamber of Deputies — 127 seats in 2017 — is renewed every two years by D'Hondt proportional representation in the 24 provincial-level constituencies, with a 3% district threshold. A third of the Senate is renewed at the same time. Voting is compulsory, and the PASO primaries in August had already pointed to a Cambiemos lead.
Compiled and reviewed from official results by ElectioMap. See our data methodology.
In numbers
- 2.96 points separated Cambiemos from Peronism (Unidad Ciudadana / Justicialist) — 725,688 votes.
- Cambiemos converted 41.75% of the vote into 61 of 127 seats (48.03%), 6.28 points more than its vote share.
- The top two shared 80.54% of the vote between them, and 4 lists cleared 5%.
- Cambiemos moved +6.64 points against the 2015 legislative election (35.11% → 41.75%).
- Turnout was 76.82%, down 4.25 points on 2015.
Calculated from the official figures on this page and from the other elections of this type in our archive.
Understanding this election
- How a Constituency Map Gets Built — what happens when no boundary file matches the districts
- How We Check an Election Figure — the checks every number passes before publication
- How Live Election Data Is Collected and Verified — from ballot box to published figure