How many people live in Union Parish, LA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 20,600 people living in Union Parish, LA. That makes Union Parish the 42nd-most populous parish in Louisiana. It is home to 0.45% of people living in the state.
20.6K
population of Union Parish, LA (2024)
0.45%
County share of the Louisiana population (2024)
About 20,600 people lived in Union Parish, LA in 2024.
Population estimates, 2000–2024
What are Union Parish, LA’s age demographics?
About 4,900 Union Parish residents are aged 65 and older in 2024. That represents 23.7% of its population. For comparison, the age group represents 17.8% of Louisiana’s population and 18% in the US overall.
Another 4,400 Union Parish residents, or 21.3% of the population, were children under 18. For comparison, the age group represents 23.3% of Louisiana’s population and 21.6% in the US overall.
A higher share of Union Parish, LA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Union Parish, LA’s racial and ethnic demographics?
Non-Hispanic white residents make up 68.9% of the Union Parish, LA population, higher than the national share of 57.5%. Union Parish, LA also has a larger share of people identifying as non-Hispanic Black or African American (23%) than the US overall (12.6%).
In contrast, Union Parish’s Hispanic population accounts for 6.3%, below the 20% nationwide, and the non-Hispanic Asian population makes up 0.3% of the parish, compared with 6.5% 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.
Union Parish, LA has a higher share of a non-Hispanic white population than Louisiana as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Union Parish, LA is Farmerville with about 3,400 residents in 2024.
Cities and towns in Union Parish, LA ranked by population
Population (2024), includes only portions within parish
| City or town | Population | |
|---|---|---|
| 1. | Farmerville | 3,375 |
| 2. | Bernice | 1,304 |
| 3. | Marion | 601 |
| 4. | Junction City (pt.) | 320 |
| 5. | Spearsville | 121 |
| 6. | Lillie | 114 |
| 7. | Downsville (pt.) | 88 |
| 8. | Balance of Union Parish | 14,694 |
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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.
