Daylight through the yearLongest day (Jun 21): 13 h 14 min5:48 am – 7:03 pmShortest day (Dec 21): 11 h 1 min6:51 am – 5:53 pm
Sun todaySunrise –Sunset –
People5,633 residentsin the ZIP code areaMedian age 43.82,947 householdsMedian household income $23,101Median home value $174,300Median rent $757 a month41% of homes owner-occupiedMedian property tax $475 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting9.9% unemployment rate56% of adults are in the labour force, 2,339 employedMain industries: professional and business services 28%, education and health care 15%, hospitality, food and recreation 14%Average commute 21 minutes63% drive alone, 8% car-pool, 6% take public transport, 10% walk or cycle, 7% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages42% of adults have a bachelor's degree or higher87% finished high school, 16% hold a graduate degreeLanguages at home: English only 9%, Spanish 90%60% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 90°F, lows 73°FColdest month January: highs 85°F, lows 66°F76 in of rain a yearwettest month NovemberSnow is rare155 days above 90°F, 0 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Rio Piedras Exp Stn, Pr Rq station, 4 mi away; snow from San Juan L M Marin Ap, Pr Rq
Earthquakes1,810 of magnitude 3 or more within 50 miles since 197039 of magnitude 4+, 3 of magnitude 5+Largest: magnitude 5.1 on 24 Dec 201013 mi away, near Aguas Buenas, Puerto RicoMost recent: magnitude 3.1 on 20 Sep 202649 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Insufficient DataSan Juan Municipio, PR, compared with all US countiesSource: FEMA National Risk Index (county level)
Air quality61% of days had good air in 2025209 of 345 days measured136 moderate daysMedian index 45, worst day 99main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Catano County, PR, 4 mi away
Internet at home71% of households have a broadband subscription45% have cable, fibre or DSL23% rely on a mobile data plan alone23% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterMetropolitanoserves 1,084,637 people from surface water40 health-based violations since 2021latest Feb 2026: surface water treatment, treatment technique13 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation18 ft5 m above sea levelSource: USGS 3D Elevation Program
