Daylight through the yearLongest day (Jun 21): 13 h 14 min5:52 am – 7:07 pmShortest day (Dec 21): 11 h 1 min6:55 am – 5:56 pm
Sun todaySunrise –Sunset –
People40,705 residentsin the ZIP code areaMedian age 44.513,949 householdsMedian household income $20,673Median home value $122,300Median rent $555 a month64% of homes owner-occupiedMedian property tax $586 a yearSource: US Census Bureau, American Community Survey 2019-2023
Work and commuting8.1% unemployment rate38% of adults are in the labour force, 12,480 employedMain industries: education and health care 24%, retail 16%, manufacturing 11%Average commute 25 minutes85% drive alone, 7% car-pool, 4% walk or cycle, 4% work from homeSource: US Census Bureau, American Community Survey 2019-2023, ZIP area
Education and languages26% of adults have a bachelor's degree or higher78% finished high school, 6% hold a graduate degreeLanguages at home: English only 7%, Spanish 93%79% speak English less than very wellSource: US Census Bureau, American Community Survey 2019-2023, ZIP area
ClimateWarmest month September: highs 87°F, lows 73°FColdest month January: highs 81°F, lows 67°F64 in of rain a year, on about 110 dayswettest month MaySnow is rare21 days above 90°F, 0 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Isabela Substn, Pr Rq station, 2 mi away
Earthquakes5,568 of magnitude 3 or more within 50 miles since 1970232 of magnitude 4+, 32 of magnitude 5+Largest: magnitude 6.4 on 7 Jan 202038 mi away, near Indios, Puerto RicoMost recent: magnitude 3.4 on 13 Sep 202633 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Insufficient DataIsabela 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, 57 mi away
Internet at home48% of households have a broadband subscription34% have cable, fibre or DSL11% rely on a mobile data plan alone42% have no internet at homeSource: US Census Bureau, American Community Survey 2019-2023
Drinking waterIsabelaserves 49,937 people from surface waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation330 ft101 m above sea levelSource: USGS 3D Elevation Program
