Fort Smith, AR population age distribution
A complete breakdown of Fort Smith's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
Age Group | Population | % of Total Population |
---|---|---|
Under 5 years | 6,074 | 6.82% |
5 to 9 years | 5,739 | 6.44% |
10 to 14 years | 5,735 | 6.44% |
15 to 19 years | 5,697 | 6.39% |
20 to 24 years | 6,571 | 7.37% |
25 to 29 years | 6,000 | 6.73% |
30 to 34 years | 6,415 | 7.2% |
35 to 39 years | 5,735 | 6.44% |
40 to 44 years | 5,683 | 6.38% |
45 to 49 years | 5,261 | 5.9% |
50 to 54 years | 5,144 | 5.77% |
55 to 59 years | 5,892 | 6.61% |
60 to 64 years | 5,757 | 6.46% |
65 to 69 years | 4,764 | 5.35% |
70 to 74 years | 3,524 | 3.95% |
75 to 79 years | 1,980 | 2.22% |
80 to 84 years | 1,335 | 1.5% |
85 years and over | 1,810 | 2.03% |
TABLE OF CONTENTS
Fort Smith, AR population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Fort Smith, AR was for the group of age 20-24 years with a population of 6,571 (7.37%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Fort Smith, AR was the 80-84 years with a population of 1,335 (1.50%).
Fort Smith, AR population by age cohort
To better understand the age distribution of Fort Smith, AR's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above

Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 21,232 | 23.83% |
18 to 64 years | 54,471 | 61.12% |
85 years and over | 13,413 | 15.05% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Fort Smith's population under 18 was 23.83%, compared to the 22.51% nationwide.
- Fort Smith's working population (between 18 and 64) was 61.12%, compared to 61.45% nationwide.
- Fort Smith's elderly or the senior population (over 65 age) was 15.05% as compared to 16.04% nationwide.
Fort Smith, AR population pyramid
Population pyramid for Fort Smith, AR is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the Fort Smith's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Fort Smith, AR, is 30.2.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Fort Smith, AR, is 23.1.
- Total dependency ratio for Fort Smith, AR is 53.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Fort Smith, AR is 4.3.

Here's the Fort Smith, AR's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 2,973 | 3,101 | 6,074 |
5 to 9 years | 2,978 | 2,761 | 5,739 |
10 to 14 years | 3,160 | 2,575 | 5,735 |
15 to 19 years | 2,636 | 3,061 | 5,697 |
20 to 24 years | 3,369 | 3,202 | 6,571 |
25 to 29 years | 3,121 | 2,879 | 6,000 |
30 to 34 years | 3,161 | 3,254 | 6,415 |
35 to 39 years | 2,882 | 2,853 | 5,735 |
40 to 44 years | 2,768 | 2,915 | 5,683 |
45 to 49 years | 2,710 | 2,551 | 5,261 |
50 to 54 years | 2,527 | 2,617 | 5,144 |
55 to 59 years | 3,146 | 2,746 | 5,892 |
60 to 64 years | 2,587 | 3,170 | 5,757 |
65 to 69 years | 2,380 | 2,384 | 4,764 |
70 to 74 years | 1,616 | 1,908 | 3,524 |
75 to 79 years | 697 | 1,283 | 1,980 |
80 to 84 years | 538 | 797 | 1,335 |
85 years and over | 727 | 1,083 | 1,810 |
Things to know
What is the population of Fort Smith, AR under 18?
Fort Smith's population under the age of 18 is 21,232, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.83% of the total resident population of Fort Smith, AR.
What is the aging population in Fort Smith, AR?
Fort Smith's population aged 65 years and above was 13,413. As per the U.S. Census Bureau's American Community Survey, this population is 15.05% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates