Mexico Chamber of Deputies election 2018 — Results
Election day: July 1, 2018
- Juntos Haremos Historia: 43.58%, 308 seats
- Por México al Frente: 27.62%, 129 seats
- Todos por México: 23.80%, 63 seats
Turnout: 63.21%
About this election
How the voting works
The 500 deputies are elected for three-year terms through a mixed-member system: 300 in single-member districts by plurality and 200 by closed-list proportional representation in five regional constituencies. Coalitions are permitted to run joint district candidates while each member party retains its own ballot line for the proportional vote, so a coalition's seat total reflects both the districts it sweeps and the lists of its component parties. An 8-point over-representation cap is meant to keep the largest party's seat share close to its vote share, though the way coalition seats are assigned has repeatedly tested that limit.
Compiled and reviewed from official results by ElectioMap. See our data methodology.
In numbers
- 15.96 points separated Juntos Haremos Historia from Por México al Frente — 8,988,512 votes.
- Juntos Haremos Historia converted 43.58% of the vote into 308 of 500 seats (61.60%), 18.02 points more than its vote share.
- The top two shared 71.20% of the vote between them, and 3 lists cleared 5%.
- Turnout of 63.21% is the highest of the 4 Chamber of Deputies elections covered here since 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