Daylight through the yearLongest day (Jun 21): 14 h 2 min6:26 am – 8:29 pmShortest day (Dec 21): 10 h 15 min7:16 am – 5:31 pm
Sun todaySunrise –Sunset –
People414 residentsin the ZIP code areaMedian age 49.2187 householdsMedian household income $43,149Median home value $122,80095% of homes owner-occupiedSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting9.3% unemployment rate40% of adults are in the labour force, 127 employedMain industries: education and health care 56%, retail 34%, wholesale trade 6%Average commute 60 minutes100% drive aloneSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages10% of adults have a bachelor's degree or higher92% finished high school, 6% hold a graduate degreeLanguages at home: English only 100%Source: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 98°F, lows 71°FColdest month January: highs 64°F, lows 39°F45 in of rain a year, on about 62 dayswettest month JuneSnow is rare132 days above 90°F, 30 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Columbus station, 12 mi away
Parks and public landsAttwater Prairie Chicken National Wildlife Refugenational wildlife refuge · 16.4 mi · 10,569 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes1 of magnitude 3 or more within 50 miles since 19700 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 3.1 on 19 Feb 201525 mi away, near Hallettsville, TexasMost recent: magnitude 3.1 on 19 Feb 201525 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively LowColorado County, TX, compared with all US countiesHigher-risk hazardsDrought Relatively HighSource: FEMA National Risk Index (county level)
Air quality87% of days had good air in 2025312 of 360 days measured48 moderate daysMedian index 34, worst day 100main pollutant: ozoneSource: US EPA Air Quality Index, nearest monitors: Victoria County, TX, 57 mi away
Internet at home71% of households have a broadband subscription40% have cable, fibre or DSL11% rely on a mobile data plan alone29% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterRock Island WSCserves 230 people from ground waterNo health-based violations since 20212 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation217 ft66 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalColumbus Community Hospital11.1 miPost officeRock Island Post Office2.5 miFire stationRock Island Volunteer Fire Department2.6 miSource: USGS National Structures Dataset
Getting aroundAirportVictoria Regional Airport VCT53 miMajor airportWilliam P. Hobby Airport HOU76 miInterstateI-1011 miUS highwayUS 90 Alt3.0 miAmtrakAmtrak Station HOS72 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 77470 ZIP area.
