Who will win the Kenyan presidential election? A look at the numbers

With elections less than a month away many in Kenya are reading the tea leaves and making predictions as to who they think will win the March 4th presidential election. Unfortunately, many of these self-styled political analysts – including the most celebrated one Mutahi Ngunyi - are merely using the raw IEBC voter registration numbers and assumptions about ethnic bloc voting.

The reality, however, is that there will be differential voter turnout in the many ethnic zones regions of the country in a manner that will have a non-trivial impact on the outcome of the election. As I highlighted in a previous post, this will be a turnout election. Everyone knows who their voters are. The swing voters will be few. And the two major contenders don’t appear to have any intention or strategy to eat into each other’s perceived strongholds.uhuru

And so just as I did last time, I ran the numbers from the latest opinion poll from Ipsos Synovate with regional breakdowns to estimate the winner of the presidential election. This time round my turnout model also includes variables on income, voter registration, and whether a region has a top presidential contender or not.

So what do the numbers say?

Well, if the polls are right Uhuru Kenyatta still leads Raila Odinga by about 740,000 votes.  I estimate that Mr. Kenyatta will get 48.87% of the votes cast to Mr. Odinga’s 41.72%, which means that a run-off is almost inevitable. I don’t expect Mr. Kenyatta to hit the 50% mark since my model is slightly biased in his favor (especially coming from the Rift Valley turnout figures from 2007 that I use as a basis of estimating turnout in 2013).  Below I show the regional tallies according to my turnout model.

A few caveats to go with my estimates: 

  • Of course the polls could be all wrong, in which case none of what I say here matters. 
  • The result of the election will hinge on the turnout in the respective candidates’ strongholds. As it is my model estimates a turnout rate in Mr. Kenyatta’s strongholds at 77.33 to Mr. Odinga’s 66.68. Mr. Odinga can easily erase Mr. Kenyatta’s lead by matching his stronghold turnout rate and having a respectable showing in Western region (by eating into Mr. Mudavadi’s vote share) on March 4th.
  • In the event of a run-off, all bets are off. Most likely the election will then centre on Mr. Kenyatta’s ethnicity (which is the same as that of the outgoing president) and his tribulations at the ICC thereby handing Mr. Odinga a lead straight off the gates.
REGION Uhuru Kenyatta Raila Odinga
Coast 64,064 410,012
North Eastern 103,978 115,531
Eastern 865,432 732,612
Central 1,623,483 113,266
Rift Valley 1,655,262 695,972
Western 58,040 444,974
Nyanza 282,626 1,299,053
Nairobi 406,099 507,624
TOTAL 5,058,984 4,319,044

For those interested in looking under the hood of Ipsos Synovate’s polls go here.