San Luis Obispo County, CA population age distributions
A complete breakdown of San Luis Obispo 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 | 12,413 | 4.41% |
| 5 to 9 years | 13,026 | 4.62% |
| 10 to 14 years | 14,928 | 5.3% |
| 15 to 19 years | 22,129 | 7.86% |
| 20 to 24 years | 29,689 | 10.54% |
| 25 to 29 years | 15,811 | 5.61% |
| 30 to 34 years | 15,858 | 5.63% |
| 35 to 39 years | 17,038 | 6.05% |
| 40 to 44 years | 15,008 | 5.33% |
| 45 to 49 years | 14,284 | 5.07% |
| 50 to 54 years | 15,128 | 5.37% |
| 55 to 59 years | 17,151 | 6.09% |
| 60 to 64 years | 19,810 | 7.03% |
| 65 to 69 years | 20,095 | 7.13% |
| 70 to 74 years | 15,436 | 5.48% |
| 75 to 79 years | 11,034 | 3.92% |
| 80 to 84 years | 6,096 | 2.16% |
| 85 years and over | 6,778 | 2.41% |
TABLE OF CONTENTS
San Luis Obispo County, CA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
San Luis Obispo County, CA population by age group.
The largest age group is 20 to 24 years with a population of 29,689 (10.54% of the total population).
The largest age group in San Luis Obispo County, CA was for the group of age 20 to 24 years with a population of 29,689 (10.54%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in San Luis Obispo County, CA was the 80 to 84 years with a population of 6,096 (2.16%).
San Luis Obispo County, CA population by age cohort
To better understand the age distribution of San Luis Obispo County, CA'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
FIGURE 2
San Luis Obispo County, CA population by age cohort
The largest age group was 18 to 64 years with a population of 173,236 (61.49% of the total population).
San Luis Obispo County, CA population by age cohort
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 49,037 | 17.41% |
| 18 to 64 years | 173,236 | 61.49% |
| 65 years and over | 59,439 | 21.1% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- San Luis Obispo County 's population under 18 was 17.41%, compared to the 22.11% nationwide.
- San Luis Obispo County's working population (between 18 and 64) was 61.49%, compared to 61.36% nationwide.
- San Luis Obispo County's elderly or the senior population (over 65 age) was 21.10% as compared to 16.53% nationwide.
San Luis Obispo County, CA population pyramid
Population pyramid for San Luis Obispo County, CA 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 San Luis Obispo County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for San Luis Obispo County, CA, is 22.2.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for San Luis Obispo County, CA, is 32.7.
- Total dependency ratio for San Luis Obispo County, CA is 54.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for San Luis Obispo County, CA is 3.1.
FIGURE 3
San Luis Obispo County, CA population pyramid
San Luis Obispo County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
San Luis Obispo County, CA population pyramid
Here's the San Luis Obispo County, CA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 6,109 | 6,304 | 12,413 |
| 5 to 9 years | 6,471 | 6,555 | 13,026 |
| 10 to 14 years | 7,845 | 7,083 | 14,928 |
| 15 to 19 years | 11,258 | 10,871 | 22,129 |
| 20 to 24 years | 16,350 | 13,339 | 29,689 |
| 25 to 29 years | 8,364 | 7,447 | 15,811 |
| 30 to 34 years | 8,633 | 7,225 | 15,858 |
| 35 to 39 years | 9,240 | 7,798 | 17,038 |
| 40 to 44 years | 7,646 | 7,362 | 15,008 |
| 45 to 49 years | 7,496 | 6,788 | 14,284 |
| 50 to 54 years | 7,754 | 7,374 | 15,128 |
| 55 to 59 years | 8,085 | 9,066 | 17,151 |
| 60 to 64 years | 9,699 | 10,111 | 19,810 |
| 65 to 69 years | 9,618 | 10,477 | 20,095 |
| 70 to 74 years | 7,428 | 8,008 | 15,436 |
| 75 to 79 years | 4,922 | 6,112 | 11,034 |
| 80 to 84 years | 2,562 | 3,534 | 6,096 |
| 85 years and over | 2,997 | 3,781 | 6,778 |
Things to know
What is the population of San Luis Obispo County, CA under 18?
San Luis Obispo County's population under the age of 18 is 49,037, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 17.41% of the total resident population of San Luis Obispo County, CA.
What is the aging population in San Luis Obispo County, CA?
San Luis Obispo County's population aged 65 years and above was 59,439. As per the U.S. Census Bureau's American Community Survey, this population is 21.10% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates