ZIP Codes Box

Sierra County, New Mexico ZIP codes

10ZIP codes
10Cities and towns
11,500People in ZIP areas
575Area code

Sierra County is in New Mexico and the Mountain Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Sierra County

ZIP codeCityTypePopulationMedian income
87654Spaceport CityUnique––
87901Truth Or ConsequencesStandard6,378$34,242
87930ArreyStandard718$38,085
87931CaballoStandard703–
87933DerryStandard––
87935Elephant ButtePO Box only2,094$51,033
87939MonticelloStandard206–
87942WilliamsburgStandard1,005$42,308
87943WinstonStandard191–
88042HillsboroStandard205$75,137

Cities and towns in Sierra County

Area codes in Sierra County

Questions

How many ZIP codes are in Sierra County, NM?
Sierra County has 10 ZIP codes, 8 of them standard ZIP codes for street addresses.
What cities are in Sierra County?
Sierra County ZIP codes cover Arrey, Caballo, Derry, Elephant Butte, Hillsboro, Monticello, Spaceport City and Truth Or Consequences and 2 other places.
What area code is Sierra County, NM?
Sierra County uses area code 575.
What time zone is Sierra County in?
Sierra County is in Mountain Time.

Other New Mexico counties