Costilla County, CO Population

Overview

3,517

Total Population

51.7

Median age

46.86%

Female population %

113.4:100

Gender ratio (M:F)

65-69 years

Largest age group

61.7

Total dependency ratio

White

Largest racial group

2,128

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Costilla County is 51.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Costilla County's population under 18 was 15.70%, compared to the 22.51% nationwide.
Costilla County's elderly or the senior population (over 65 age) was 26.33% as compared to 16.04% nationwide.
Of the total population in Costilla County, 11.83% were under the age of 15, 18.31% aged 15 to 29, 43.53% aged 30 to 64, 24.85% aged 65 to 84, and 1.48% were 85 years of age and older.

There are 221 less females than males in Costilla County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 46.86% females and 53.14% males in Costilla County, CO.
The Costilla County, CO gender ratio is 113.4:100 i.e. 113.4 men to 100 women (1.134).
For male population, the largest age group is 65-69 years with a population of 236.
For the female population, the largest age group is 55-59 years with a population of 184.

Costilla County's population has become increasingly diverse:

Racial distribution of Costilla County population: 69.75% are White, 4.69% are American Indian and Alaska Native, 1.14% are Asian, 3.55% are some other race and 20.87% are multiracial.
Costilla County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 2,128 is Hispanic or Latino (of any race), and 1,389 (39.49% of the total population) is Non-Hispanic.
The largest racial group in Costilla County is White with a population of 2,453 (69.75% of the total population).

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

The peak population was 3,872 in the year 2019
From 2000 to 2010, Costilla County's population decreased by 137 (3.74%), as compared to the national growth of 9.63%.
From 2010 to 2020, Costilla County's population decreased by 28 (0.79%), 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, Costilla County's population was lowest in year 2009 at 3,175.