Climate & Environment in San antonio, TX
Updated 2026 • Air quality, water quality, CO2 emissions & energy costs
San antonio's average Air Quality Index is 2 — rated Good by EPA standards.
Understanding the Air Quality Index (AQI)
The AQI measures air pollution on a 0–500 scale. Lower is better. Here's how San antonio's air quality compares:
With an average AQI of 2, San antonio falls in the Good range. The area experienced 31 days with poor air quality over the past year, which is above average. The worst recorded AQI was 5.0, remaining within acceptable limits even at peak pollution.
Environmental Quality in San antonio, TX
Key environmental health indicators that affect daily life, outdoor activities, and long-term wellbeing for residents of San antonio.
CO2 Emissions Breakdown for TX
TX's total CO2 emissions are 663.5 million metric tons (21.8 tons per capita). This is above the US average of ~14 tons per person, often driven by heavy industrial activity or fossil-fuel-based electricity generation.
Source: U.S. Energy Information Administration (EIA), 2021 data. Values in million metric tons of CO2.
⚡ Energy Costs in TX
Energy prices affect monthly household budgets and are an important factor when evaluating the cost of living in San antonio, TX.
Residents of TX benefit from electricity prices that are 16.4¢ – 14.5¢ = lower than the national average. This means lower monthly utility bills compared to many other states, making San antonio more affordable for energy-intensive households.
What San antonio's Environment Means for You
Air Quality: San antonio, TX enjoys good air quality with an average AQI of 2, well within EPA's "Good" range (0–50). Residents can expect safe conditions for outdoor exercise, gardening, and recreational activities year-round.
Water Quality: San antonio's drinking water scores 8/10. This indicates high-quality drinking water that meets or exceeds federal safety standards. Residents can generally rely on tap water without additional filtration. water quality is good, maintaining high standards.
Carbon Footprint: TX's per-capita CO2 emissions are 21.8 metric tons per year (total state emissions: 663.5 million metric tons). This is above the national average of ~14 tons, often due to heavy industrial activity or reliance on fossil fuels for electricity generation. If environmental impact is important to your relocation decision, this is worth considering.
Energy Costs: Electricity in TX costs 14.47¢ per kWh, which is below the US average of 16.41¢/kWh. This translates to lower monthly utility bills for San antonio residents.
San antonio, TX Environment Overview
Considering San antonio, TX? Let's examine the local environment. Air quality is excellent air quality with an average index of 2, meaning conditions are well below concerning levels. Water quality stands at 8/10. Review our environmental analysis to understand living conditions in San antonio.
Environmental Pros & Cons of San antonio, TX
Pros
- •Friendly community vibe
- •Good schools available
- •Mild winters, warm summers
- •Rich history and attractions
- •Diverse cultural festivals
- •Plenty of outdoor activities
- •Vibrant nightlife options
- •Affordable cost of living
- •Family-friendly activities
- •Job market is improving
Cons
- •Economic inequality noticeable
- •Air quality concerns
- •Traffic congestion issues
- •High summer temperatures
- •Limited public transportation
- •Political tension exists
- •Seasonal allergies common
- •School ratings vary widely
- •Some areas lack diversity
- •Higher crime rates in areas
Frequently Asked Questions
What is the cost of living in San antonio, TX? ▼
The cost of living in San antonio, TX is 0% equal to the national average, with a cost of living index of 100 (where 100 represents the U.S. average). Housing typically accounts for the largest portion of living expenses. See full cost of living breakdown →
Is San antonio, TX a safe place to live? ▼
San antonio, TX is average in terms of safety, with crime rates near the national average. Safety varies significantly by neighborhood. View detailed San antonio crime statistics →
What are the best neighborhoods in San antonio, TX? ▼
The best neighborhoods in San antonio, TX depend on your priorities. For families, look for areas near top-rated schools with lower crime rates. For affordability, neighborhoods vary in price depending on proximity to amenities and schools. Explore San antonio on our interactive map →
How are the taxes in San antonio, TX? ▼
Tax rates in San antonio, TX include state and local components. The cost of living index of 100 reflects a moderate cost environment compared to the national average. View detailed San antonio tax information →
How does San antonio, TX compare to nearby cities? ▼
San antonio, TX offers comparable costs to nearby communities. With a cost of living index of 100, median home prices of $0, and a crime rate of 0 per 1,000 residents, you can compare these metrics side-by-side. Use the compare feature to evaluate specific cities.
What is the weather like in San antonio, TX? ▼
Weather in San antonio, TX varies by season. Air quality is good, with an average AQI of 1. View detailed San antonio climate & environment data →
Explore More About San antonio, TX
📅 Last Updated: February 2026
Sources: EPA Air Quality System (AQS), U.S. Energy Information Administration (EIA), NOAA, U.S. Census Bureau