County · Puerto Rico
Las Marías Municipio, Puerto Rico
Las Marías Municipio, Puerto Rico. Las Marías Municipio had 8,638 residents in 2025 by the Census Bureau's estimate, down 2.6% since 2020, in line with Puerto Rico (−3.1%). It holds 1 place (1 census-designated) and 3 census tracts. GEOID 72083.
Residents, July 2025 estimate
8,638
Census Bureau estimate (no margin published)
2020 Census count: 8,874 · ACS 2020-2024: 8,744
Median household income
$16,314
±$1,646 (90% margin)
Puerto Rico: $26,297
Median home value
$86,500
±$7,105 (90% margin)
Puerto Rico: $131,500
Median gross rent
$412
±$40 (90% margin)
Puerto Rico: $578
How many people live in Las Marías Municipio, and is it growing?
The 2020 Census counted 8,874 residents in Las Marías Municipio. The Census Bureau estimates 8,638 for July 1, 2025, down 2.6% since 2020, in line with Puerto Rico (−3.1%). The 2020-2024 American Community Survey puts the population at 8,744 over 46 square miles of land.
| Measure | Las Marías Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Total population | 8,744 | 3,234,309 | +374 |
| Housing units | 4,109±191 | 1,634,357 | no clear change |
Las Marías Municipio's population since 2000
From 11,061 in 2000 to 8,638 in 2025: down 21.9%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Las Marías Municipio?
Las Marías Municipio holds 1 place: 1 census-designated place. The largest is Las Marías zona urbana with 855 residents (2020-2024). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Las Marías zona urbanaGEOID 7243788 | 896 | $17,959 |
|---|
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Las Marías Municipio?
The median resident of Las Marías Municipio is 44.9 years old; 17.8% are under 18 and 23.8% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 99.5%, then non-Hispanic residents of some other race at 0.5%.
| Measure | Las Marías Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.9±0.1 | 44.8 | +2.5 |
| Under 18 years | 17.8% | 16.1% | – |
| 65 years and over | 23.8% | 23.4% | – |
| Hispanic or Latino (any race) | 99.5%±0.6 pts | 99.0% | no clear change |
| White alone, not Hispanic | 0.0%±0.1 pts | 0.6% | – |
| Black or African American alone, not Hispanic | 0.0%±0.6 pts | 0.1% | – |
| Asian alone, not Hispanic | 0.0%±0.6 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.0%±0.6 pts | 0.1% | – |
| Some other race alone, not Hispanic | 0.5%±0.6 pts | 0.1% | – |
| No health insurance coverage | 2.6%±1.7 pts | 5.7% | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Las Marías Municipio earn?
Half of Las Marías Municipio's households earn less than $16,314 a year (±$1,646), against $26,297 in Puerto Rico. In 2015-2019 it was $17,396 in 2024 dollars; the margins of error cannot tell the two periods apart. 57.8% of residents live below the poverty line.
| Measure | Las Marías Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $16,314±$1,646 | $26,297 | no clear change |
| Mean household income | $23,906±$3,345 | $41,994 | – |
| Per capita income | $10,495±$1,462 | $17,981 | no clear change |
| People below the poverty line | 57.8%±5.2 pts | 40.5% | no clear change |
| Children under 18 below the poverty line | 76.2%±9.3 pts | 54.9% | no clear change |
| Households receiving SNAP | 62.3%±5.2 pts | 47.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Las Marías Municipio?
Owners occupy 73.7% of Las Marías Municipio's occupied homes and renters 26.3%. The median owner-occupied home is valued at $86,500 by its owner (±$7,105). The median renter pays $412 a month including utilities, and 35.8% of renters pay 35% or more of their income on rent.
| Measure | Las Marías Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $86,500±$7,105 | $131,500 | −$17,863 |
| Median gross rent | $412±$40 | $578 | +$62 |
| Renters paying 35% or more of income on rent | 35.8%±19.5 pts | 42.3% | −30.2 pts |
| Median monthly owner costs, with a mortgage | $642±$82 | $946 | – |
| Owner-occupied homes | 73.7%±5.1 pts | 67.9% | no clear change |
| Housing units | 4,109±191 | 1,634,357 | no clear change |
| Homeowner vacancy rate | 0.0%±2.4 pts | 1.3% | – |
| Rental vacancy rate | 0.0%±6.5 pts | 5.1% | – |
| Single-family detached homes | 79.5%±4.1 pts | 68.0% | – |
| Mobile homes | 0.0%±1.3 pts | 0.2% | – |
| Built 2020 or later | 0.0%±1.3 pts | 0.2% | – |
| Built 1939 or earlier | 3.6%±1.7 pts | 1.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Las Marías Municipio get to work?
90.9% of Las Marías Municipio's workers drive alone. The average trip to work takes 25.1 minutes.
| Measure | Las Marías Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 36.4%±3.6 pts | 46.4% | – |
| Unemployment rate | 6.0%±4.0 pts | 10.7% | – |
| Drove alone to work | 90.9%±5.4 pts | 82.6% | – |
| Carpooled | 6.5%±4.5 pts | 6.4% | – |
| Public transportation | 0.0%±2.1 pts | 0.9% | – |
| Walked | 1.7%±2.1 pts | 2.4% | – |
| Worked from home | 0.8%±1.3 pts | 6.1% | – |
| Mean travel time to work | 25.1 min±3.5 | 28.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Las Marías Municipio's census tracts?
Las Marías Municipio is divided into 3 census tracts. Among those with a reliable estimate, median household income runs from $15,591 (Tract 9599) to $18,299 (Tract 9597).
| Tract 959772083959700 | 2,092±362 | $18,299 |
|---|---|---|
| Tract 959872083959800 | 1,427±341 | $16,310 |
| Tract 959972083959900 | 5,225±480 | $15,591 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Las Marías Municipio compare with Puerto Rico's other counties?
| Measure | Rank |
|---|---|
| Population | 75th of 78 |
| Growth 2020-2025 | 38th of 78 |
| Residents per square mile | 75th of 78 |
| Median household income | 78th of 78 |
| Median home value | 78th of 78 |
| Median gross rent | 77th of 78 |
| Poverty rate | 4th of 78 |
| Median age | 39th of 78 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Las Marías Municipio are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.