Sierra County, NM Population

Overview

11,512

Total Population

55.3

Median age

50.12%

Female population %

99.5:100

Gender ratio (M:F)

70-74 years

Largest age group

91.3

Total dependency ratio

White

Largest racial group

3,654

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Sierra County's population is old compared to the rest of the country:

The median age in Sierra County is 55.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Sierra County's population under 18 was 15.92%, compared to the 22.51% nationwide.
Sierra County's elderly or the senior population (over 65 age) was 35.09% as compared to 16.04% nationwide.
Of the total population in Sierra County, 12.64% were under the age of 15, 13.74% aged 15 to 29, 38.53% aged 30 to 64, 30.72% aged 65 to 84, and 4.38% were 85 years of age and older.

There are 28 more females than males in Sierra County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.12% females and 49.88% males in Sierra County, NM.
The Sierra County, NM gender ratio is 99.5:100 i.e. 99.5 men to 100 women (0.995).
For male population, the largest age group is 70-74 years with a population of 635.
For the female population, the largest age group is 60-64 years with a population of 610.

Sierra County's population has become increasingly diverse:

Racial distribution of Sierra County population: 82.01% are White, 0.34% are Black or African American, 3.73% are American Indian and Alaska Native, 0.84% are Asian, 3.69% are some other race and 9.39% are multiracial.
Sierra County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 3,654 is Hispanic or Latino (of any race), and 7,858 (68.26% of the total population) is Non-Hispanic.
The largest racial group in Sierra County is White with a population of 9,441 (82.01% of the total population).

Sierra County's population has already reached its peak and is showing a trend of decline:

The peak population was 13,209 in the year 2000
From 2000 to 2010, Sierra County's population decreased by 1,166 (8.83%), as compared to the national growth of 9.63%.
From 2010 to 2020, Sierra County's population decreased by 480 (3.99%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Sierra County's population was lowest in year 2019 at 10,886.