Below is a list of Alto NM zip codes. For your research we have also included Alto Area Code, Time Zone, UTC and the local Lincoln County FIPS Code. Each Alto New Mexico zip code has a center Longitude / Latitude point (the Alto center is -105.667 / 33.3963). For your convenience we have also indicated if that zip code in Alto observes Daylight Savings time. For more information on Alto New Mexico you will find helpful business links and searches.