Daylight through the yearLongest day (Jun 21): 14 h 2 min6:34 am – 8:37 pmShortest day (Dec 21): 10 h 15 min7:24 am – 5:39 pm
Sun todaySunrise –Sunset –
People40,526 residentsin the ZIP code areaMedian age 37.216,239 householdsMedian household income $55,884Median home value $216,400Median rent $1,186 a month49% of homes owner-occupiedMedian property tax $3,946 a yearSource: US Census Bureau, American Community Survey 2020-2024
Work and commuting4.9% unemployment rate68% of adults are in the labour force, 21,013 employedMain industries: education and health care 23%, professional and business services 13%, hospitality, food and recreation 12%Average commute 23 minutes69% drive alone, 13% car-pool, 2% take public transport, 13% work from homeSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
Education and languages22% of adults have a bachelor's degree or higher83% finished high school, 8% hold a graduate degreeLanguages at home: English only 54%, Spanish 45%17% speak English less than very wellSource: US Census Bureau, American Community Survey 2020-2024, ZIP area
ClimateWarmest month August: highs 96°F, lows 75°FColdest month January: highs 63°F, lows 41°F32 in of rain a year, on about 46 dayswettest month MaySnow is rare122 days above 90°F, 14 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, San Antonio Intl Ap station, 3 mi away
Nearby landmarksOblate School of Theologycollege · 1.4 miUniversity of Phoenix - San Antonio Campuscollege · 1.9 miCampfire Lightscampground · 1.4 miWalker Ranch Park Trailheadpark · 3.1 miHeadwaters Sanctuary Trailspark · 3.6 miVoelcker Homestead Trailheadtrailhead · 3.3 miSource: USGS Geographic Names Information System
Parks and public landsAggie Parkpark · under a mileJackson-Keller Elementary Schoolpark · under a mileFort Sam Houston National Cemeteryhistoric site · 6.3 mi · 343 acresThe Alamostate historic site · 6.6 miCasa Navarro State Historic Sitestate historic site · 6.6 miSan Antonio National Cemeteryhistoric site · 7.3 miSource: USGS Protected Areas Database (PAD-US)
Earthquakes46 of magnitude 3 or more within 50 miles since 19702 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.5 on 17 Feb 202449 mi away, near Falls City, TexasMost recent: magnitude 3.6 on 1 Sep 202650 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively HighBexar County, TX, compared with all US countiesHigher-risk hazardsHail Very HighTornado Very HighRiver flooding Very HighHeat wave Relatively HighSource: FEMA National Risk Index (county level)
Air quality43% of days had good air in 2025158 of 365 days measured196 moderate, 10 unhealthy for sensitive groups, 1 unhealthy daysMedian index 52, worst day 154main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Bexar County monitors, TX
Internet at home93% of households have a broadband subscription80% have cable, fibre or DSL12% rely on a mobile data plan alone6% have no internet at homeSource: US Census Bureau, American Community Survey 2020-2024
Drinking waterSan Antonio Water Systemserves 2,643,729 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation788 ft240 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalKindred Hospital San Antonio2.1 miPost officeNimitz Carrier Annex Post Office2.3 miTown hallCastle Hills Municipal Centerunder a milePoliceCastle Hills Police Departmentunder a mileFire stationCastle Hills Fire Departmentunder a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi26 schools10 elementary, 3 middle, 3 high, 10 otherElementaryCastle Hills Elementary Schoolunder a mileHighAntonian College Preparatory High Schoolunder a mileElementaryJackson - Keller Elementary Schoolunder a mileCollegeOblate School of Theology1.4 miSource: USGS National Structures Dataset
Getting aroundAirportSan Antonio International Airport SAT3.4 miInterstateI-410under a mileUS highwayUS 872.1 miAmtrakSan Antonio, TX SAS7.2 miCoachSan Antonio Pearl DistrictFlixBus5.8 miTransit67 stops within a mileVIASources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 78213 ZIP area.
