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Welcome to Sierra County ...

Time Zone: Sierra County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Truth or Consequences is the Seat for Sierra County.

Sierra County was founded in 1884. Sierra was created by taking area from Dona Ana and Socorro Counties.

From the Census Estimates for 2019, <1> Sierra had a population of 10,791 people. This is a decrease of 10.38% since the last Census (which gave a population of 12,041 people in 2010).

At the time of the 2010 Census, Sierra represented 0.58% of the total population of New Mexico.

Below are some of the communities located in Sierra County:

  • Elephant Butte
    (7 miles [11.3 km] to the northeast)
    • Note: The GPS coordinates that we are using for Elephant Butte have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Elephant Butte
    • Elephant Butte is located in Sierra County (NM)
    • Population from the 2020 Census: 1,320 people
    • Jump to TripAdvisor's Tourism page for Elephant Butte <3>
  • Truth or Consequences
    (3 miles [4.8 km] to the northeast)
  • Williamsburg
    (Less than 2 miles to the north)
    • Note: The GPS coordinates that we are using for Williamsburg have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Williamsburg
    • Williamsburg is located in Sierra County (NM)
    • Population from the 2020 Census: 415 people
    • Jump to TripAdvisor's Tourism page for Williamsburg <3>

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<3>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
 

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This page was last modified/updated: 20 Mar 2025