Gresham, OR population age distribution
A complete breakdown of Gresham'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 | 7,419 | 6.5% |
5 to 9 years | 6,707 | 5.87% |
10 to 14 years | 8,502 | 7.45% |
15 to 19 years | 6,722 | 5.89% |
20 to 24 years | 7,978 | 6.99% |
25 to 29 years | 7,517 | 6.58% |
30 to 34 years | 9,315 | 8.16% |
35 to 39 years | 8,261 | 7.24% |
40 to 44 years | 7,388 | 6.47% |
45 to 49 years | 7,049 | 6.17% |
50 to 54 years | 6,778 | 5.94% |
55 to 59 years | 7,653 | 6.7% |
60 to 64 years | 6,991 | 6.12% |
65 to 69 years | 5,688 | 4.98% |
70 to 74 years | 4,141 | 3.63% |
75 to 79 years | 2,541 | 2.23% |
80 to 84 years | 1,535 | 1.34% |
85 years and over | 1,979 | 1.73% |
TABLE OF CONTENTS
Gresham, OR population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Gresham, OR was for the group of age 30-34 years with a population of 9,315 (8.16%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Gresham, OR was the 80-84 years with a population of 1,535 (1.34%).
Gresham, OR population by age cohort
To better understand the age distribution of Gresham, OR'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 | 27,092 | 23.73% |
18 to 64 years | 71,188 | 62.36% |
85 years and over | 15,884 | 13.91% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Gresham's population under 18 was 23.73%, compared to the 22.51% nationwide.
- Gresham's working population (between 18 and 64) was 62.36%, compared to 61.45% nationwide.
- Gresham's elderly or the senior population (over 65 age) was 13.91% as compared to 16.04% nationwide.
Gresham, OR population pyramid
Population pyramid for Gresham, OR 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 Gresham's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Gresham, OR, is 29.9.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Gresham, OR, is 21.0.
- Total dependency ratio for Gresham, OR is 50.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Gresham, OR is 4.8.

Here's the Gresham, OR's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 3,737 | 3,682 | 7,419 |
5 to 9 years | 3,449 | 3,258 | 6,707 |
10 to 14 years | 4,436 | 4,066 | 8,502 |
15 to 19 years | 3,241 | 3,481 | 6,722 |
20 to 24 years | 4,366 | 3,612 | 7,978 |
25 to 29 years | 3,921 | 3,596 | 7,517 |
30 to 34 years | 4,670 | 4,645 | 9,315 |
35 to 39 years | 4,328 | 3,933 | 8,261 |
40 to 44 years | 3,557 | 3,831 | 7,388 |
45 to 49 years | 3,582 | 3,467 | 7,049 |
50 to 54 years | 3,475 | 3,303 | 6,778 |
55 to 59 years | 4,052 | 3,601 | 7,653 |
60 to 64 years | 3,299 | 3,692 | 6,991 |
65 to 69 years | 2,636 | 3,052 | 5,688 |
70 to 74 years | 1,994 | 2,147 | 4,141 |
75 to 79 years | 948 | 1,593 | 2,541 |
80 to 84 years | 739 | 796 | 1,535 |
85 years and over | 501 | 1,478 | 1,979 |
Things to know
What is the population of Gresham, OR under 18?
Gresham's population under the age of 18 is 27,092, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.73% of the total resident population of Gresham, OR.
What is the aging population in Gresham, OR?
Gresham's population aged 65 years and above was 15,884. As per the U.S. Census Bureau's American Community Survey, this population is 13.91% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates