Agua Fria Village has been designated as a "Traditional Historic Community" in 1995 by Santa Fe County as allowed by state statute.  It was the first community to do so.

So this might be considered a political subdivision.

And was named as one of America's most endangered places in 2004:
http://www.nmhistoricpreservation.org/documents/55.DOCUMENT.pdf

Set on an alluvian plain that was farmed by native American until the regional drought of 1250 A.D. and resettled by Native Americans in 1300-1400 when it was finally abandoned, the area was an agricultural mecca.  Recent archaelogical digs by Cheri Sheick of Southwest Associates indicate that the settlement might be the oldest largest settlemnt of its kind on the North American continent dating back to 3,000 B.C.

Agua Fria Village became a place of modern recorded settlement in New Mexico when Sergeant Major (Maestro Campo) Roque Madrid was given a land grant on the Santa Fe River from Ojito Fresco to Pueblo Quemado in 1693 by General Don Diego de Vargas for his service in the 1692 “Reconquest” of New Mexico by the Spanish Crown. His request was granted based on his parents and grandparents having farmed this area prior to the revolt. Other land grants were given to other soldiers and the ditches from the Santa Fe River (acequias) were extended and carried precious water to the flat lands of Agua Fria, which had been used for farming for centuries. Eventually, this small community became the breadbasket of the City of Santa Fe.

The individual grants of the Agua Fria Village residents went from the Arroyo de los Chamisos (near the present day Santa Fe Place Mall) to the Arroyo de los Frijoles or the southern most boundary of the San Ildefonso Pueblo grant; a distance of some five to seven miles in length. Lots were narrower in width and may have been only 600 to 900 feet (200 or 300 yards or “varas”).

Santa Fe was established in 1609 and the settlements developed in the city as well as surrounding areas, among them Agua Fria. The settlers lived and made their homes from the resources of the earth. They were farmers and sustained their families from the crops and animals they raised with the generosity of water from the Santa Fe River. The Santa Fe River was the focal point in establishing themselves in this region. Faith, farming and home remedies were the only means of survival.

In the beginning of the settlements Cieneguitas, Agua Fria and Cieneguilla were called Ranchitos, as the population grew Agua Fria became a Placita. Agua Fria was identified by two groups. The area by the Church was "La Placita de Los Romeros and the other one in the area of the Tanque "watering hole" (area of Lopez and Camino de Oro Road) "La Placita de Los Lopez".

As the community grew, it acquired the status of a Village.

(The above three paragraphs are from the collected works of Melinda Romero Pike, first published in the People of God newsletter of May 2010, by the Archdiocese of Santa Fe on the 175th anniversary of San Isidro Catholic Church).

In the year, 1776 Fray Francisco Atanacio Dominguez gave a census count to his superiors listing Agua Fria with 57 families and 297 persons.

http://www.hmdb.org/marker.asp?MarkerID=39302