Las Marías Municipio, Puerto Rico Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 75th-largest in Puerto Rico
The population of Las Marías Municipio, Puerto Rico is 8,790 as of the 2023 American Community Survey, making it the 75th-largest county in Puerto Rico. The median household income is $16,170, the median home value is $89,700, and the median age is 44.5.
8,790
Population
190
People / sq mi
$16,170
Median Income
$89,700
Median Home Value
Las Marías Municipio covers 46 sq mi of land at 189.6 people per square mile.
About Las Marías Municipio,
Among US counties, Las Marías Municipio stands out first on household income: a median of $16,170, below the US median of $78,538. Las Marías Municipio is a county in Puerto Rico with a population of 8,790.
Incomes are among the lowest of comparable places, with a median household income of $16,170, below the US median of $78,538. Poverty is among the highest of comparable US counties: 53.1%, above the national 12.4%. Home prices sit near the bottom of the range at $89,700, with typical rent around $358.
Home-based work is uncommon, at 0.7%, below the national 14.0%, and the average commute runs about 25 minutes each way.
Race & Ethnicity
| White | 62.5% |
| Black or African American | 3.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.0% |
| Two or More Races | 0.0% |
Age & Sex
44.5
Median Age
50.4%
Female
49.6%
Male
22.9%
Age 65+
Age Distribution
Children (under 15): 14.9% · Seniors (65+): 22.9%
Income & Poverty
| Median household income | $16,170 |
| Mean household income | $22,105 |
| Per-capita income | $9,744 |
| Poverty rate | 53.1% |
| Unemployment rate | 2.5% |
| Employment-to-population | 33.2% |
Top Industries by Employment
The largest employment sector in Las Marías Municipio is professional & business services, accounting for 29.5% of workers.
How residents commute
0.0%
Drive alone
1.2%
Carpool
92.5%
Public transit
0.7%
Work from home
25.2 min
Avg commute
Housing
$89,700
Median home value
$358
Median rent
74.4%
Homeownership rate
3,992
Total housing units
70.7%
Occupied
29.3%
Vacant
25.6%
Renter-occupied
Social & access
98.0%
With health insurance
Education
-
High School+
-
Bachelor's+
Largest cities in Puerto Rico
Other counties in Puerto Rico
Part of Puerto Rico
County rankings
Frequently Asked Questions
Las Marías Municipio, Puerto Rico has a population of 8,790 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 75th-largest county in Puerto Rico. Population density is 190 people per square mile.
The median household income in Las Marías Municipio, Puerto Rico is $16,170, with mean (average) household income of $22,105 and per-capita income of $9,744. 53.1% of residents live below the federal poverty level.
In Las Marías Municipio, the largest racial and ethnic groups are White (62.5%), Black or African American (3.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Las Marías Municipio, Puerto Rico is 44.5 years. Residents are 50.4% female and 49.6% male.
The median home value in Las Marías Municipio is $89,700 and median monthly rent is $358. 74.4% of occupied housing units are owner-occupied. The county has 3,992 total housing units, 29.3% of which are vacant.
The largest employment sector in Las Marías Municipio, Puerto Rico is professional, scientific, and management services, employing 29.5% of workers. The unemployment rate is 2.5%.
San Juan is among the largest cities associated with Las Marías Municipio, Puerto Rico, with a population of 320,691.
More from Puerto Rico
Population 338,661
Population 183,456
Population 153,226
Population 134,676
Full rankings of Puerto Rico counties
Statewide data for Puerto Rico
Population, race, income, age, and trends across Puerto Rico
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.