2016 United States presidential election in Missouri
The 2016 United States presidential election in Missouri was held on November 8, 2016, as part of the 2016 General Election in which all 50 states plus the District of Columbia participated. Missouri voters chose electors to represent them in the Electoral College via a popular vote pitting the Republican Party's nominee, businessman Donald Trump, and running mate Indiana Governor Mike Pence against Democratic Party nominee, former Secretary of State Hillary Clinton and her running mate, Virginia Senator Tim Kaine.

On March 15, 2016, in the presidential primaries, voters expressed their preferences for the Democratic, Republican, and Libertarian parties' respective nominees for president. Voters could choose any one party's primary in which to vote.

Donald Trump won the election in Missouri with 56.4% of the vote. Hillary Clinton received 37.9% of the vote. Trump's 18.5-point margin of victory in the state was almost double that of Mitt Romney's from 2012. Clinton carried only four jurisdictions: Boone County, home to Columbia and the University of Missouri; Jackson County, which includes most of Kansas City; St. Louis County; and St. Louis City.

With 37.9% of the vote, Hillary Clinton obtained the lowest percentage as a Democratic presidential nominee in the state since George McGovern's 37.7% in 1972, further cementing the state's drift towards the Republican Party, and away from its long held status as a bellwether state. Missouri was also one of the eleven states that voted for Bill Clinton in 1992 and 1996 which Hillary Clinton lost in 2016.

Primary elections

Democratic primary 

Nine candidates appeared on the Democratic presidential primary ballot:
Hillary Clinton
Henry Hewes 
Rocky De La Fuente
Bernie Sanders
Keith Judd
Willie L. Wilson
Martin O'Malley (withdrawn)
John Wolfe Jr.
Jon Adams

Republican primary 

Twelve candidates appeared on the Republican presidential primary ballot:
Jeb Bush (withdrawn)
Ben Carson (withdrawn)
Chris Christie (withdrawn)
Ted Cruz
Carly Fiorina (withdrawn)
Mike Huckabee (withdrawn)
John Kasich
Rand Paul (withdrawn)
Marco Rubio (withdrawn)
Rick Santorum (withdrawn)
Donald Trump

Libertarian primary 
The Missouri primary ran on March 15, 2016, alongside those of the Republican, Democratic, and Constitution parties. 40% of the electorate voted to stand uncommitted to any candidate. Austin Petersen, running in his home state, finished second, with 29% of the statewide vote, which was double that of Steve Kerbel from Colorado, who finished third, with 14%. Petersen comfortably won the support of voters in the state's capital, Jefferson City, and its surrounding counties, but was fell heavily behind the uncommitted vote in the state's two largest cities, Kansas City and St. Louis. Kerbel won three counties around Springfield, while Marc Allan Feldman, Cecil Ince, and Rhett Smith all won a sprawl of counties across the state; in most of these counties, however, only a single vote was cast. No votes were cast for Libertarian Party candidates in the northwestern counties of Harrison, Holt, Mercer, and Worth.

General election

Polling

Predictions 
The following are final 2016 predictions from various organizations for Missouri as of Election Day.
 New York Times: Solid Trump
 FiveThirtyEight: Solid Trump
 Los Angeles Times: Leans Trump
 RealClearPolitics: Likely Trump

Results
The statewide election results were as follows. The total vote count was 2,828,266.

By county

By congressional district
Trump won 6 of 8 congressional districts.