Town Hall Address 2231 Avenida de Mesilla Mesilla, NM 88046 United States- Doña Ana County Website https://www.mesillanm.gov Fire District 575-523-1311 2670 De Parian Mesilla, NM 88046 United States Town Clerk 575-524-3262 Ext. 105 2231 Avenida de Mesilla Mesilla, NM 88046 United States Tax Collector 575-524-3262 Ext. 105 2231 Avenida de Mesilla Mesilla, NM 88046 United States Town Hall Hours Monday - Friday: 8:00 AM - 5:00 PM County Doña Ana