Davis County, UT population age distribution
A complete breakdown of Davis County'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 | 28,512 | 7.95% |
5 to 9 years | 32,527 | 9.06% |
10 to 14 years | 33,984 | 9.47% |
15 to 19 years | 29,128 | 8.12% |
20 to 24 years | 23,501 | 6.55% |
25 to 29 years | 24,215 | 6.75% |
30 to 34 years | 25,014 | 6.97% |
35 to 39 years | 28,780 | 8.02% |
40 to 44 years | 25,146 | 7.01% |
45 to 49 years | 20,766 | 5.79% |
50 to 54 years | 17,278 | 4.82% |
55 to 59 years | 17,169 | 4.78% |
60 to 64 years | 16,706 | 4.66% |
65 to 69 years | 12,685 | 3.54% |
70 to 74 years | 9,538 | 2.66% |
75 to 79 years | 6,092 | 1.7% |
80 to 84 years | 4,292 | 1.2% |
85 years and over | 3,498 | 0.97% |
TABLE OF CONTENTS
Davis County, UT population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Davis County, UT was for the group of age 10-14 years with a population of 33,984 (9.47%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Davis County, UT was the 85+ years with a population of 3,498 (0.97%).
Davis County, UT population by age cohort
To better understand the age distribution of Davis County, UT'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 | 114,373 | 31.87% |
18 to 64 years | 208,353 | 58.06% |
85 years and over | 36,105 | 10.06% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Davis County's population under 18 was 31.87%, compared to the 22.51% nationwide.
- Davis County's working population (between 18 and 64) was 58.06%, compared to 61.45% nationwide.
- Davis County's elderly or the senior population (over 65 age) was 10.06% as compared to 16.04% nationwide.
Davis County, UT population pyramid
Population pyramid for Davis County, UT 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 Davis County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Davis County, UT, is 41.7.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Davis County, UT, is 15.9.
- Total dependency ratio for Davis County, UT is 57.6.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Davis County, UT is 6.3.

Here's the Davis County, UT's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 14,759 | 13,753 | 28,512 |
5 to 9 years | 17,229 | 15,298 | 32,527 |
10 to 14 years | 17,286 | 16,698 | 33,984 |
15 to 19 years | 15,356 | 13,772 | 29,128 |
20 to 24 years | 12,398 | 11,103 | 23,501 |
25 to 29 years | 12,167 | 12,048 | 24,215 |
30 to 34 years | 12,353 | 12,661 | 25,014 |
35 to 39 years | 14,531 | 14,249 | 28,780 |
40 to 44 years | 12,812 | 12,334 | 25,146 |
45 to 49 years | 10,593 | 10,173 | 20,766 |
50 to 54 years | 8,704 | 8,574 | 17,278 |
55 to 59 years | 8,504 | 8,665 | 17,169 |
60 to 64 years | 8,377 | 8,329 | 16,706 |
65 to 69 years | 6,236 | 6,449 | 12,685 |
70 to 74 years | 4,458 | 5,080 | 9,538 |
75 to 79 years | 2,574 | 3,518 | 6,092 |
80 to 84 years | 1,932 | 2,360 | 4,292 |
85 years and over | 1,698 | 1,800 | 3,498 |
Things to know
What is the population of Davis County, UT under 18?
Davis County's population under the age of 18 is 114,373, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 31.87% of the total resident population of Davis County, UT.
What is the aging population in Davis County, UT?
Davis County's population aged 65 years and above was 36,105. As per the U.S. Census Bureau's American Community Survey, this population is 10.06% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates