| Election Name: | 1966 New Mexico gubernatorial election |
| Type: | presidential |
| Country: | New Mexico |
| Previous Election: | 1964 New Mexico gubernatorial election |
| Previous Year: | 1964 |
| Next Election: | 1968 New Mexico gubernatorial election |
| Next Year: | 1968 |
| Ongoing: | no |
| Election Date: | November 8, 1966 |
| Image1: | File:David Cargo (NM).png |
| Nominee1: | David Cargo |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 134,625 |
| Percentage1: | 51.73% |
| Nominee2: | Gene Lusk |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 125,587 |
| Percentage2: | 48.26% |
| Map Size: | 230px |
| Governor | |
| Before Election: | Jack M. Campbell |
| Before Party: | Democratic Party (United States) |
| After Election: | David Cargo |
| After Party: | Republican Party (United States) |
The 1966 New Mexico gubernatorial election took place on November 8, 1966, in order to elect the Governor of New Mexico. Due to term limits, incumbent Democrat Jack M. Campbell could not run for reelection to a third term. Republican David Cargo defeated Democrat Gene Lusk in a close race.
The Democratic primary was won by former state senator Gene Lusk.
The Republican primary was won by state representative David Cargo.
| County | David Cargo Republican | Gene Lusk Democratic | Margin | Total votes cast | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | % | % | |||||||||||||
| Bernalillo | 50,274 | 63.08% | 29,431 | 36.92% | 20,843 | 26.15% | 79,705 | ||||||||
| Catron | 555 | 53.57% | 481 | 46.43% | 74 | 7.14% | 1,036 | ||||||||
| Chaves | 6,380 | 53.31% | 5,582 | 46.64% | 798 | 6.67% | 11,967 | ||||||||
| Colfax | 1,719 | 40.47% | 2,529 | 59.53% | -810 | -19.07% | 4,248 | ||||||||
| Curry | 3,624 | 47.19% | 4,055 | 52.81% | -431 | -5.61% | 7,679 | ||||||||
| De Baca | 354 | 38.60% | 563 | 61.40% | -209 | -22.79% | 917 | ||||||||
| Doña Ana | 6,568 | 48.52% | 6,969 | 51.48% | -401 | -2.96% | 13,537 | ||||||||
| Eddy | 5,297 | 39.27% | 8,191 | 60.72% | -2,894 | -21.45% | 13,489 | ||||||||
| Grant | 1,969 | 32.49% | 4,091 | 67.51% | -2,122 | -35.02% | 6,060 | ||||||||
| Guadalupe | 1,025 | 46.17% | 1,195 | 53.83% | -170 | -7.66% | 2,220 | ||||||||
| Harding | 391 | 52.20% | 358 | 47.80% | 33 | 4.41% | 749 | ||||||||
| Hidalgo | 346 | 29.32% | 834 | 70.68% | -488 | -41.36% | 1,180 | ||||||||
| Lea | 4,226 | 39.20% | 6,553 | 60.79% | -2,327 | -21.59% | 10,780 | ||||||||
| Lincoln | 1,423 | 56.63% | 1,090 | 43.37% | 333 | 13.25% | 2,513 | ||||||||
| Los Alamos | 2,646 | 54.75% | 2,185 | 45.21% | 461 | 9.54% | 4,833 | ||||||||
| Luna | 1,161 | 38.78% | 1,833 | 61.22% | -672 | -22.44% | 2,994 | ||||||||
| McKinley | 3,069 | 47.63% | 3,375 | 52.37% | -306 | -4.75% | 6,444 | ||||||||
| Mora | 1,195 | 51.09% | 1,144 | 48.91% | 51 | 2.18% | 2,339 | ||||||||
| Otero | 3,159 | 43.63% | 4,082 | 56.37% | -923 | -12.75% | 7,241 | ||||||||
| Quay | 1,556 | 43.83% | 1,994 | 56.17% | -438 | -12.34% | 3,550 | ||||||||
| Rio Arriba | 3,209 | 39.85% | 4,843 | 60.15% | -1,634 | -20.29% | 8,052 | ||||||||
| Roosevelt | 1,838 | 48.66% | 1,939 | 51.34% | -101 | -2.67% | 3,777 | ||||||||
| San Juan | 5,734 | 53.83% | 4,918 | 46.17% | 816 | 7.66% | 10,652 | ||||||||
| San Miguel | 4,134 | 53.29% | 3,623 | 46.71% | 511 | 6.59% | 7,757 | ||||||||
| Sandoval | 1,505 | 39.99% | 2,257 | 59.98% | -752 | -19.98% | 3,763 | ||||||||
| Santa Fe | 7,945 | 48.69% | 8,369 | 51.29% | -424 | -2.60% | 16,318 | ||||||||
| Sierra | 1,349 | 54.93% | 1,106 | 45.03% | 243 | 9.89% | 2,456 | ||||||||
| Socorro | 1,963 | 51.50% | 1,849 | 48.50% | 114 | 2.99% | 3,812 | ||||||||
| Taos | 2,670 | 46.98% | 3,010 | 52.96% | -340 | -5.98% | 5,683 | ||||||||
| Torrance | 1,227 | 51.99% | 1,131 | 47.92% | 96 | 4.07% | 2,360 | ||||||||
| Union | 893 | 44.54% | 1,112 | 55.46% | -219 | -10.92% | 2,005 | ||||||||
| Valencia | 5,221 | 51.61% | 4,895 | 48.39% | 326 | 3.22% | 10,116 | ||||||||
| Total | 134,625 | 51.73% | 125,587 | 48.26% | 9,038 | 3.47% | 260,232 | ||||||||