Daylight through the yearLongest day (Jun 21): 13 h 49 min6:41 am – 8:30 pmShortest day (Dec 21): 10 h 28 min7:18 am – 5:46 pm
Sun todaySunrise –Sunset –
People158 residentsin the ZIP code areaMedian age 56.176 householdsMedian household income $35,75090% of homes owner-occupiedSource: US Census Bureau, American Community Survey 2020-2024
Education and languages20% of adults have a bachelor's degree or higher88% finished high school, 11% hold a graduate degreeLanguages at home: English only 16%, Spanish 84%10% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 99°F, lows 75°FColdest month January: highs 71°F, lows 45°F22 in of rain a year, on about 33 dayswettest month SeptemberSnow is rare187 days above 90°F, 6 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Rio Grande City station, 24 mi away
Nearby landmarksSoil Conservation Service Site 1 Reservoirreservoir · 7.0 miSoil Conservation Service Site 2 Reservoirreservoir · 9.6 miSource: USGS Geographic Names Information System
EarthquakesNone of magnitude 3 or more within 50 miles since 1970Source: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively ModerateStarr County, TX, compared with all US countiesHigher-risk hazardsCold wave Very HighSource: FEMA National Risk Index (county level)
Air quality44% of days had good air in 2025162 of 365 days measured199 moderate, 4 unhealthy for sensitive groups daysMedian index 52, worst day 140main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Hidalgo County, TX, 28 mi away
Internet at home55% of households have a broadband subscription40% have cable, fibre or DSL13% rely on a mobile data plan alone45% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterCity of Romaserves 19,464 people from surface water5 health-based violations since 2021latest Nov 2025: surface water treatment, treatment technique28 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation391 ft119 m above sea levelSource: USGS 3D Elevation Program
Local servicesPost officeSanta Elena Post Office5.9 miFire stationSan Isidro Fire Department9.2 miSource: USGS National Structures Dataset
Getting aroundAirportMcAllen Miller International Airport MFE37 miInterstateI-229 miUS highwayUS 8323 miCoachRio Grande City StripesGreyhound27 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 78591 ZIP area.
