Daylight through the yearLongest day (Jun 21): 13 h 49 min6:40 am – 8:30 pmShortest day (Dec 21): 10 h 28 min7:17 am – 5:45 pm
Sun todaySunrise –Sunset –
People289 residentsin the ZIP code areaMedian age 41.267 householdsMedian household income $94,821Median home value $52,800Median rent $520 a month66% of homes owner-occupiedMedian property tax $633 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting0.0% unemployment rate50% of adults are in the labour force, 104 employedMain industries: education and health care 48%, farming, forestry and mining 14%, transport, warehousing and utilities 11%Average commute 19 minutes71% drive alone, 18% car-pool, 10% walk or cycle, 1% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages29% of adults have a bachelor's degree or higher80% finished high school, 18% hold a graduate degreeLanguages at home: English only 45%, Spanish 55%8% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 98°F, lows 74°FColdest month January: highs 69°F, lows 47°F20 in of rain a year, on about 32 dayswettest month SeptemberSnow is rare170 days above 90°F, 3 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Mccook station, 21 mi away; snow from La Joya
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, 27 mi away
Internet at home79% of households have a broadband subscription69% have cable, fibre or DSL10% rely on a mobile data plan alone21% 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
Elevation235 ft72 m above sea levelSource: USGS 3D Elevation Program
Local servicesPost officeSan Isidro Post Office3.2 miFire stationSan Isidro Fire Department2.7 miSource: USGS National Structures Dataset
Getting aroundAirportMcAllen Miller International Airport MFE40 miInterstateI-69C28 miUS highwayUS 28118 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 78588 ZIP area.
