County · Puerto Rico
San Juan Municipio, Puerto Rico
San Juan Municipio, Puerto Rico. San Juan Municipio had 329,737 residents in 2025 by the Census Bureau's estimate, down 3.7% since 2020, a steeper fall than Puerto Rico's (−3.1%). It holds 2 places (2 census-designated) and 138 census tracts. GEOID 72127.
San Juan Municipio is one of the 40 counties of the San Juan-Bayamón-Caguas, PR metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
329,737
Census Bureau estimate (no margin published)
2020 Census count: 342,259 · ACS 2020-2024: 336,160
Median household income
$27,992
±$1,036 (90% margin)
Puerto Rico: $26,297
Median home value
$171,200
±$2,487 (90% margin)
Puerto Rico: $131,500
Median gross rent
$611
±$16 (90% margin)
Puerto Rico: $578
How many people live in San Juan Municipio, and is it growing?
The 2020 Census counted 342,259 residents in San Juan Municipio. The Census Bureau estimates 329,737 for July 1, 2025, down 3.7% since 2020, a steeper fall than Puerto Rico's (−3.1%). The 2020-2024 American Community Survey puts the population at 336,160 over 48 square miles of land.
| Measure | San Juan Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Total population | 336,160 | 3,234,309 | +692 |
| Housing units | 201,026±1,639 | 1,634,357 | +9,900 |
San Juan Municipio's population since 2000
From 434,374 in 2000 to 329,737 in 2025: down 24.1%. 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 San Juan Municipio?
San Juan Municipio holds 2 places: 2 census-designated places. The largest is San Juan zona urbana with 317,995 residents (2020-2024). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| San Juan zona urbana | 322,854 | $28,562 |
|---|---|---|
| Caño Martin Peña | 10,997 | $19,149 |
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 San Juan Municipio?
The median resident of San Juan Municipio is 45.8 years old; 15.3% are under 18 and 25.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 98.2%, then non-Hispanic white residents at 1.1%.
| Measure | San Juan Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.8±0.2 | 44.8 | +2.6 |
| Under 18 years | 15.3% | 16.1% | – |
| 65 years and over | 25.5% | 23.4% | – |
| Hispanic or Latino (any race) | 98.2%±0.2 pts | 99.0% | no clear change |
| White alone, not Hispanic | 1.1%±0.2 pts | 0.6% | −0.4 pts |
| Black or African American alone, not Hispanic | 0.2%±0.1 pts | 0.1% | no clear change |
| Asian alone, not Hispanic | 0.2%±0.1 pts | 0.1% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Some other race alone, not Hispanic | 0.2%±0.1 pts | 0.1% | – |
| No health insurance coverage | 8.7%±0.5 pts | 5.7% | −0.9 pts |
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 San Juan Municipio earn?
Half of San Juan Municipio's households earn less than $27,992 a year (±$1,036), against $26,297 in Puerto Rico. In 2015-2019 it was $27,949 in 2024 dollars; the margins of error cannot tell the two periods apart. 38.8% of residents live below the poverty line.
| Measure | San Juan Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $27,992±$1,036 | $26,297 | no clear change |
| Mean household income | $53,654±$1,728 | $41,994 | – |
| Per capita income | $25,758±$787 | $17,981 | +$1,931 |
| People below the poverty line | 38.8%±1.1 pts | 40.5% | −2.2 pts |
| Children under 18 below the poverty line | 59.0%±2.6 pts | 54.9% | no clear change |
| Households receiving SNAP | 35.9%±1.0 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 San Juan Municipio?
Owners occupy 52.8% of San Juan Municipio's occupied homes and renters 47.2%. The median owner-occupied home is valued at $171,200 by its owner (±$2,487). The median renter pays $611 a month including utilities, and 45.3% of renters pay 35% or more of their income on rent.
| Measure | San Juan Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $171,200±$2,487 | $131,500 | −$17,712 |
| Median gross rent | $611±$16 | $578 | no clear change |
| Renters paying 35% or more of income on rent | 45.3%±1.8 pts | 42.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,178±$29 | $946 | – |
| Owner-occupied homes | 52.8%±1.0 pts | 67.9% | no clear change |
| Housing units | 201,026±1,639 | 1,634,357 | +9,900 |
| Homeowner vacancy rate | 2.2%±0.4 pts | 1.3% | – |
| Rental vacancy rate | 6.8%±0.7 pts | 5.1% | – |
| Single-family detached homes | 39.7%±0.8 pts | 68.0% | – |
| Mobile homes | 0.1%±0.1 pts | 0.2% | – |
| Built 2020 or later | 0.2%±0.1 pts | 0.2% | – |
| Built 1939 or earlier | 4.8%±0.3 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 San Juan Municipio get to work?
73.4% of San Juan Municipio's workers drive alone and 8.2% work from home. The average trip to work takes 24.0 minutes. The unemployment rate in 2020-2024 averaged 12.3%.
| Measure | San Juan Municipio | Puerto Rico | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 52.4%±0.6 pts | 46.4% | – |
| Unemployment rate | 12.3%±0.7 pts | 10.7% | −3.5 pts |
| Drove alone to work | 73.4%±1.1 pts | 82.6% | – |
| Carpooled | 7.0%±0.7 pts | 6.4% | – |
| Public transportation | 3.4%±0.4 pts | 0.9% | – |
| Walked | 4.4%±0.5 pts | 2.4% | – |
| Worked from home | 8.2%±0.7 pts | 6.1% | +6.3 pts |
| Mean travel time to work | 24.0 min±0.4 | 28.0 min | −1.9 min |
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 San Juan Municipio's census tracts?
San Juan Municipio is divided into 138 census tracts. Among those with a reliable estimate, median household income runs from $2,500 or less (Tract 43.06) to $85,633 (Tract 100.02).
All 138 census tracts of San Juan Municipio, with their figures
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does San Juan Municipio compare with Puerto Rico's other counties?
| Measure | Rank |
|---|---|
| Population | 1st of 78 |
| Growth 2020-2025 | 52nd of 78 |
| Residents per square mile | 1st of 78 |
| Median household income | 17th of 78 |
| Median home value | 2nd of 78 |
| Median gross rent | 15th of 78 |
| Poverty rate | 57th of 78 |
| Median age | 22nd 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 San Juan 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.