| Election Name: | 2018 New Mexico House of Representatives election |
| Country: | New Mexico |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2016 New Mexico House of Representatives election |
| Previous Year: | 2016 |
| Next Election: | 2020 New Mexico House of Representatives election |
| Next Year: | 2020 |
| Seats For Election: | All 70 seats in the New Mexico House of Representatives |
| Majority Seats: | 36 |
| Election Date: | November 6, 2018 |
| Leader1: | Brian Egolf |
| Party1: | Democratic Party (United States) |
| Leaders Seat1: | 47th - Santa Fe |
| Last Election1: | 38 |
| Seats Before1: | 39 |
| Seats1: | 46 |
| Seat Change1: | 7 |
| Popular Vote1: | 364,291 |
| Percentage1: | 58.40% |
| Swing1: | 4.25% |
| Leader2: | Nate Gentry (retired) |
| Party2: | Republican Party (United States) |
| Leaders Seat2: | 30th - Albuquerque |
| Last Election2: | 32 |
| Seats Before2: | 31 |
| Seats2: | 24 |
| Seat Change2: | 7 |
| Popular Vote2: | 244,576 |
| Percentage2: | 39.21% |
| Swing2: | 5.95% |
| Map Size: | 350px |
| Speaker of the House | |
| Before Election: | Brian Egolf |
| Before Party: | Democratic |
| After Election: | Brian Egolf |
| After Party: | Democratic |
The 2018 New Mexico House of Representatives election took place as part of the biennial United States elections. New Mexico voters elected state representatives in all 70 of the state house's districts. State representatives serve two-year terms in the New Mexico House of Representatives.
A primary election on June 5, 2018, determined which candidates appear on the November 6 general election ballot. Primary election results can be obtained from the New Mexico Secretary of State's website.[1]
In the 2016 state House elections, Democrats flipped 5 seats from Republican hands and took control of the House by increasing their seats from 33 to 38. This put Democrats in effective control of the New Mexico House of Representatives.
To claim control of the chamber from Democrats, the Republicans would need to net 4 House seats. However, in the elections, the Democrats made a net gain of 8 seats, increasing their seats from 38 to 46.
10 incumbent Representatives (7 Republicans, 3 Democrats) chose to not seek reelection.
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