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 –
People24,607 residentsin the ZIP code areaMedian age 44.611,125 householdsMedian household income $16,590Median home value $110,000Median rent $532 a month41% of homes owner-occupiedMedian property tax $360 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting19.3% unemployment rate49% of adults are in the labour force, 8,246 employedMain industries: education and health care 16%, retail 15%, construction 14%Average commute 23 minutes65% drive alone, 7% car-pool, 11% take public transport, 6% walk or cycle, 5% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages15% of adults have a bachelor's degree or higher69% finished high school, 3% hold a graduate degreeLanguages at home: English only 5%, Spanish 95%83% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month September: highs 89°F, lows 78°FColdest month January: highs 83°F, lows 72°F60 in of rain a year, on about 112 dayswettest month NovemberSnow is rare72 days above 90°F, 0 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, San Juan L M Marin Ap, Pr Rq station, 2 mi away
Earthquakes1,778 of magnitude 3 or more within 50 miles since 197039 of magnitude 4+, 3 of magnitude 5+Largest: magnitude 5.1 on 24 Dec 201014 mi away, near Aguas Buenas, Puerto RicoMost recent: magnitude 3.1 on 20 Sep 202650 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, 6 mi away
Internet at home59% of households have a broadband subscription30% have cable, fibre or DSL26% rely on a mobile data plan alone35% 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
Elevation53 ft16 m above sea levelSource: USGS 3D Elevation Program
