The 2018 Colorado State Senate elections took place as part of the biennial

United States elections Elections in the United States are held for government officials at the federal, state, and local levels. At the federal level, the nation's head of state, the president, is elected indirectly by the people of each state, through an Electora ...

. Colorado voters elected state senators in 17 of the 35 districts in the state senate. State senators serve four-year terms in the Colorado State Senate. The Colorado Reapportionment Commission provides a statewide map of the state Senat
here
and individual district maps are available from the U.S. Censu

A primary election on June 26, 2018 determined which candidates appeared on the November 6 general election ballot. Primary election results can be obtained from the Colorado Secretary of State's website. Following the 2016 state Senate elections,

Republicans Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...

maintained effective control of the Senate with 18 members. Democratic state Senator

Cheri Jahn Cheri Jahn (born July 12, 1953) is a politician from Colorado. She served in both the State Senate and the State House of Representatives. While serving in the senate, she switched her party from Democrat to Independent In the Colorado Senate, s ...

switched from Democrat to unaffiliated on December 29, 2017. However, Sen. Jahn decided to still caucus with Democrats. In the 2018 election, Republicans defended 10 seats while Democrats defended 6 seats with Jahn's 1 Independent seat up for grabs. To claim control of the chamber from

, the Democrats needed to net 1 Senate seat while electing a Democrat to the Independent seat. The Democratic candidate won the Independent seat while Democrats netted 2 additional seats, giving the party majority status in the chamber.

Summary of Results

*Districts not shown are not up for election until 2020. Source:

Incumbents not seeking re-election

Term-limited incumbents

Seven incumbent Senators (three Democrats, three Republicans and one Independent) are term-limited and unable to seek a third term. *

Kevin Grantham Kevin Grantham (born June 29, 1970) is an American politician who serves on the county commission of Fremont County, Colorado. He served in the Colorado Senate from the 2nd district as a member of the Republican Party from 2011 to 2019. He ser ...

(R), District 2 * Kent Lambert (R), District 9 *

Kevin Lundberg Kevin Lundberg (born July 29, 1952) is a former legislator in the U.S. state of Colorado. Before his appointment to the State Senate in 2009 as a United States Republican Party, Republican, he was elected to serve as the Representative to House ...

(R), District 15 *

(I), District 20 *

Andy Kerr Andrew Kerr (1878–1969) was an American football coach. Andrew or Andy Kerr may also refer to: * Andrew Kerr (Australian politician) (1837–1907), New South Wales politician *Andrew Kerr (broadcaster), Scottish television presenter and journalis ...

(D), District 22 * Irene Aguilar (D) District 32 * Lucia Guzman (D), District 34

Retiring incumbents

One incumbent Democrat is not seeking re-election despite being able to do so. * Michael Merrifield (D), District 11

Closest races

Seats where the margin of victory was under 10%: # #

Detailed Results

Sources:

District 1

District 2

District 3

District 5

District 6

District 7

District 9

District 11

District 13

District 15

District 16

District 20

District 22

District 24

District 30

District 32

District 34

References

{{2018 United States elections State Senate

2018 File:2018 Events Collage.png, From top left, clockwise: The 2018 Winter Olympics opening ceremony in PyeongChang, South Korea; Protests erupt following the Assassination of Jamal Khashoggi; March for Our Lives protests take place across the United ...

Colorado State Senate