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Counties → Texas

Bexar County, Texas

SDWIS compliance plate

Sheet TX029 · Bexar County 82 sys · 13,955 viol · #15/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-LOW · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 91.5% flagged
  • HEALTH-LOW 4.3% health
  • RANK-TOP #15/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-LOW 10.0% detect
  • SRC-GW GW lead 87%
  • SYS-MID 82 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Comal County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Bexar County ranks #15 of 3,254 counties by people served, and #3 of 254 counties in Texas. See methodology · corpus placement.

Bexar County standing, lower-flagged corpus third

Flagged-system rate 91.5% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.3% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 10.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #15 of 3,254 · #3 of 254 in Texas.

Flagged-rate neighbourhood around Bexar County

Lowest/highest poles plus in-state counties nearest Bexar County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Howard · lowest Bexar · this county Victoria · near Bee · highest 66.7% 90.9% 91.5% 91.6% 91.8% 92.1% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
San Antonio Water System 2,113,151 38 Detected
Jbsa - Sam Houston 37,563 218 Clean
City of Converse 29,709 15 Clean
East Central Sud 26,137 66 Clean
Jbsa - Lackland 20,907 139 Clean
City of Universal City 20,119 5 Clean
Atascosa Rural WSC 13,905 123 Clean
City of Selma 11,418 27 Clean
Jbsa - Randolph 10,949 35 Clean
Fair Oaks Ranch Utilities 9,768 12 Clean
City of Live Oak 8,724 6 Clean
Bexar County Wcid 10 Windcrest 8,154 10 Clean
City of Kirby 8,142 14 Clean
City of Leon Valley 7,794 289 Detected
City of Alamo Heights 7,357 118 Clean
Southwest Isd Main 5,364 64 Clean
City of Elmendorf 4,221 44 Clean
San Antonio Military Medical Center 4,000 4 -
Jbsa - Medina 3,650 55 Clean
Southwest Texas Methodist Hospital 3,005 130 -
Southwest Research Inst 2,700 3 -
City of Shavano Park 2,200 48 -
Jbsa - Bullis 1,500 259 -
The Oaks WSC 1,191 1 -
Oak North Mobile Homes Estates 1,059 12 -
Methodist Specialty Hospital 983 152 Clean
Coolcrest Water System 936 8 Clean
East Central Sud Palm Park Water 882 109 -
Blue Skies of Texas West 796 58 -
Country Springs Water 765 5 -
Grey Forest Water System 663 21 -
Las Palapas Tex Mex Cafe 640 303 -
Cosa Eisenhower Park 600 29 -
Discover Church 560 34 -
Our Lady of the Lake University 550 55 -
San Antonio Rose Palace 500 89 -
Stagecoach Hills 489 9 -
Spring Creek United Methodist Church 438 109 -
Tejas Valley RV Park 381 23 -
Pioneer Estates 375 34 -
TX Biomedical Research Institute 340 29 -
Estates Utility Co Stonegate 276 0 -
Cadillac Water 252 69 -
Saint Anthony Catholic High School 250 80 -
Temple of Praise 250 193 -
US Storage Center 236 351 -
Kingdom Hall of Jehovahs Witnesses 225 81 -
Bavarian Hills 204 19 -
Specht Store 170 830 -
Kiddie Koop Day Care Center 160 138 -

Compare beyond Texas

Lower-flagged peers for Bexar County

Cross-state counties nearest Bexar County on flagged-system share (91.5%) and cumulative violation count (13,955). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.