San Juan Municipio, Puerto Rico Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 1st-largest in Puerto Rico
The population of San Juan Municipio, Puerto Rico is 338,661 as of the 2023 American Community Survey, making it the 1st-largest county in Puerto Rico. The median household income is $26,981, the median home value is $171,400, and the median age is 45.4.
338,661
Population
7072
People / sq mi
$26,981
Median Income
$171,400
Median Home Value
San Juan Municipio covers 48 sq mi of land at 7072.2 people per square mile.
About San Juan Municipio, PR
What distinguishes San Juan Municipio is density: among the most densely settled of US counties, around 7,072 people per square mile. San Juan Municipio is a county in Puerto Rico with a population of 338,661. That makes it one of the ten largest counties in Puerto Rico in the country, at #1 by population.
Household earnings sit near the bottom of the range at $26,981, below the US median of $78,538. The poverty rate, 36.1%, is among the steepest of comparable US counties and above the national 12.4%. Median home value is $171,400, with typical rent around $596.
Remote work is below the national 14.0% at 7.3%, and the average commute runs about 25 minutes each way.
That density explains much of the rest of the profile in San Juan Municipio: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Race & Ethnicity
| White | 32.2% |
| Black or African American | 10.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
45.4
Median Age
54.3%
Female
45.7%
Male
24.8%
Age 65+
Age Distribution
Children (under 15): 12.5% · Seniors (65+): 24.8%
Income & Poverty
| Median household income | $26,981+$1,885 vs state |
| Mean household income | $52,349 |
| Per-capita income | $24,332 |
| Poverty rate | 36.1%-2.1% vs state |
| Unemployment rate | 7.5% |
| Employment-to-population | 44.5% |
Top Industries by Employment
The largest employment sector in San Juan Municipio is professional & business services, accounting for 20.5% of workers.
How residents commute
3.7%
Drive alone
4.8%
Carpool
73.6%
Public transit
7.3%
Work from home
24.7 min
Avg commute
Housing
$171,400+$46,800 vs state
Median home value
$596
Median rent
53.5%
Homeownership rate
193,011
Total housing units
76.6%
Occupied
23.4%
Vacant
46.5%
Renter-occupied
Social & access
91.0%
With health insurance
Education
-
High School+
-
Bachelor's+
Largest cities in Puerto Rico
Other counties in Puerto Rico
Part of Puerto Rico
Metro areas in Puerto Rico
County rankings
Frequently Asked Questions
San Juan Municipio, Puerto Rico has a population of 338,661 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 1st-largest county in Puerto Rico. Population density is 7072 people per square mile.
The median household income in San Juan Municipio, Puerto Rico is $26,981, with mean (average) household income of $52,349 and per-capita income of $24,332. 36.1% of residents live below the federal poverty level.
In San Juan Municipio, the largest racial and ethnic groups are White (32.2%), Black or African American (10.7%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in San Juan Municipio, Puerto Rico is 45.4 years. Residents are 54.3% female and 45.7% male.
The median home value in San Juan Municipio is $171,400 and median monthly rent is $596. 53.5% of occupied housing units are owner-occupied. The county has 193,011 total housing units, 23.4% of which are vacant.
The largest employment sector in San Juan Municipio, Puerto Rico is professional, scientific, and management services, employing 20.5% of workers. The unemployment rate is 7.5%.
San Juan is among the largest cities associated with San Juan Municipio, Puerto Rico, with a population of 320,691.
Where to stay near San Juan Municipio
Visiting or relocating to San Juan Municipio, PR? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near San Juan Municipio
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to San Juan Municipio?
Get relocation and cost-of-living insights for San Juan Municipio, PR by email. No spam, unsubscribe anytime.
More from Puerto Rico
Population 183,456
Population 153,226
Population 134,676
Population 126,239
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.