24/7 Trauma and Biohazard Cleanup in Sena, NM

Sena is an unincorporated community and census-designated place (CDP) in San Miguel County, New Mexico.

The 2020 census counted 155 residents in Sena.

Sena lies along the Pecos River and New Mexico State Highway 3, south of Interstate 25, in the upper Pecos River valley.

Sena is one of the 19th-century settlements of the San Miguel del Vado Land Grant, the Spanish land grant made by Governor Fernando Chacón in 1794 to Lorenzo Márquez and 51 other settlers as a buffer outpost on New Mexico's eastern frontier.

The grant originally covered more than 300,000 acres, but an 1897 U.S. Supreme Court decision stripped its common lands down to little more than 5,000 acres of privately held parcels, a loss the grant's villages, including Sena, still remember.

Sena is one of a string of historic Hispanic farming villages along the upper Pecos River, alongside places such as Ribera and Villanueva.

The CDP covers about 2.13 square miles at an elevation of 5,876 feet.

Sena has no post office of its own; "Sena" is an accepted mailing name for ZIP code 87560, the code of the Ribera post office.

Sena students attend the West Las Vegas Schools district, with West Las Vegas High School as the area high school; the San Miguel County seat is Las Vegas.