Daylight through the yearLongest day (Jun 21): 13 h 13 min5:52 am – 7:05 pmShortest day (Dec 21): 11 h 3 min6:53 am – 5:56 pm
Sun todaySunrise –Sunset –
People17,398 residentsin the ZIP code areaMedian age 45.56,461 householdsMedian household income $24,065Median home value $87,400Median rent $454 a month72% of homes owner-occupiedMedian property tax $199 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting16.6% unemployment rate41% of adults are in the labour force, 5,030 employedMain industries: education and health care 20%, manufacturing 14%, public administration 12%Average commute 26 minutes93% drive alone, 2% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages24% of adults have a bachelor's degree or higher80% finished high school, 5% hold a graduate degreeLanguages at home: English only 4%, Spanish 96%81% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 85°F, lows 64°FColdest month January: highs 79°F, lows 57°F80 in of rain a year, on about 116 dayswettest month SeptemberSnow is rare1 days above 90°F, 0 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Adjuntas Substn, Pr Rq station, 9 mi away
Earthquakes3,789 of magnitude 3 or more within 50 miles since 1970181 of magnitude 4+, 20 of magnitude 5+Largest: magnitude 6.4 on 7 Jan 20206 mi away, near Indios, Puerto RicoMost recent: magnitude 3.1 on 20 Sep 202614 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Insufficient DataGuayanilla 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, 51 mi away
Internet at home80% of households have a broadband subscription54% have cable, fibre or DSL22% rely on a mobile data plan alone19% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterGuayanilla Urbanoserves 7,302 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation542 ft165 m above sea levelSource: USGS 3D Elevation Program
