Seneca is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

in Union County,

New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...

, United States. Seneca is located on New Mexico State Road 406, north-northeast of Clayton. Originally known as Cienaga, the name was corrupted by Anglophone settlers after the

Civil War A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...

. The first postmaster was Flora Blackwell.

References

Unincorporated communities in Union County, New Mexico Unincorporated communities in New Mexico {{NewMexico-geo-stub