N.M. Stat. § 3-21-13
Zoning enforcement by counties.
A. Counties having authority to regulate building and zoning under Sections 3-21-1
through 3-21-14 NMSA 1978, may enact ordinances to carry out that authority the same
as a municipality, except where inconsistent with statutory or constitutional limitations
placed on counties. The ordinances are effective only within the zoning jurisdiction of
the county.
B. County ordinances enacted under this section may be enforced by prosecution in
the district court of the county. Penalties for violations of these ordinances shall not
exceed a fine of three hundred dollars ($300) or imprisonment for ninety days, or both.
C. The district attorney and sheriff shall enforce these ordinances.