Air quality Good to know

Bexar County remains a serious ozone nonattainment area

EPA gave Bexar County a serious nonattainment classification under the 2015 ozone rule. In plain terms, the county does not meet the federal limit. The classification took effect on July 22, 2024. The limit is 0.070 parts per million. The deadline to meet it is September 24, 2027.

This long-term rating is not the same as today's air. Ozone near the ground can make asthma and other breathing trouble worse. Children, older adults, and people with breathing problems face more risk. Check AirNow before a long outdoor practice, job, or hike.

The label is not a warning to stay inside every day. Use TCEQ for the county's legal status and full timeline. Use AirNow for today's air and health tips.

Content last revised 2026-07-11

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More stories and useful context near Bexar County

A balanced next shelf: local character first, with practical context close by.

Stories & local character

The Edwards Aquifer helps explain how San Antonio lives with water

The limestone Edwards Aquifer supplies San Antonio-area water, feeds major springs, and ties everyday conservation rules to a well called J-17.

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Practical

Commercial and multi-family (4+ unit) construction in unincorporated Bexar County needs a county building permit

There is no zoning in unincorporated Bexar County, but commercial, public, and residential construction with four or more units still needs a county building permit. All work must meet the 2021 International Code Series.

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Stories & local character

Eisenhower Park Keeps a Natural-Area Feel on the North Side

Eisenhower Park is a designated natural area near San Antonio's northern edge, with hiking trails and an overlook tower where the city starts turning rocky and hilly.

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Good to know

Draft and effective flood maps answer different questions in Bexar County

The River Authority's draft data can show emerging risk, while FEMA's effective map controls federal flood-zone and mortgage-insurance decisions.

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Place pages in Bexar County

Alamo Heights Balcones Heights Castle Hills China Grove Cibolo Converse

Nearby county shelves

Comal (28) Wilson (11) Guadalupe (39) Medina (27) Kendall (11) Atascosa (11)