How many people live in Glenn County, CA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 28,300 people living in Glenn County, CA. That makes Glenn County the 48th-most populous county in California. It is home to 0.07% of people living in the state.
28.3K
population of Glenn County, CA (2024)
0.07%
County share of the California population (2024)
About 28,300 people lived in Glenn County, CA in 2024.
Population estimates, 2000–2024
What are Glenn County, CA’s age demographics?
About 4,900 Glenn County residents are aged 65 and older in 2024. That represents 17.3% of its population. For comparison, the age group represents 16.6% of California’s population and 18% in the US overall.
Another 7,400 Glenn County residents, or 26.1% of the population, were children under 18. For comparison, the age group represents 21.4% of California’s population and 21.6% in the US overall.
A higher share of Glenn County, CA's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Glenn County, CA’s racial and ethnic demographics?
Hispanic residents make up 46.7% of the Glenn County, CA population, higher than the national share of 20%. Glenn County, CA also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (1.7%) than the US overall (0.72%).
In contrast, Glenn County’s non-Hispanic Black or African American population accounts for 0.78%, below the 12.6% nationwide, and the non-Hispanic white population makes up 46.1% of the county, compared with 57.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Glenn County, CA has a higher share of a non-Hispanic white population than California as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Glenn County, CA is Orland with about 8,600 residents in 2024.
Cities and towns in Glenn County, CA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Orland | 8,605 |
| 2. | Willows | 6,079 |
| 3. | Balance of Glenn County | 13,620 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
