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Counties → Texas

Johnson County, Texas

SDWIS compliance plate

Sheet TX251 · Johnson County 61 sys · 4,743 viol · #292/3254

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

  • VIOL-SEVERE 96.7% flagged
  • HEALTH-LOW 5.0% health
  • RANK-TOP #292/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-HIGH 88.9% detect
  • SRC-GW GW lead 82%
  • SYS-MID 61 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Johnson County ranks #292 of 3,254 counties by people served, and #27 of 254 counties in Texas. See methodology · corpus placement.

Johnson County standing, mid-flagged corpus third

Flagged-system rate 96.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.0% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 88.9% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #292 of 3,254 · #27 of 254 in Texas.

Flagged-rate neighbourhood around Johnson County

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

0% 20% 40% 60% 80% 100% Howard · lowest Johnson · this county Erath · near Bee · highest 66.7% 96.5% 96.7% 96.7% 96.8% 97% 100%

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

Water Systems

System Name Population Violations PFAS
Johnson County Sud 65,517 40 Detected
City of Burleson 53,381 20 Detected
City of Cleburne 34,075 15 Detected
Bethesda WSC 33,441 35 Detected
City of Alvarado 6,614 141 Detected
City of Keene 6,346 53 Detected
Bethany Sud 4,503 46 Detected
Metroplex Homesteads Water Supply 3,588 27 Clean
Parker WSC 3,300 28 -
City of Venus 3,170 141 Detected
Crowley 1 Acre Sky Corp Water 2,016 10 -
City of Grandview 1,879 29 -
City of Godley 1,367 66 -
City of Rio Vista 1,040 107 -
Crest Water 1,026 135 -
Sundance Addition 834 16 -
Twin Creek Subdivision 780 0 -
Shaded Lane Estates 777 310 -
Northcrest Addition 744 20 -
The Retreat Water Supply 633 144 -
Blue Water Oaks Estates 606 79 -
Ridgecrest Addition & Misty Hollow 456 34 -
Oakview Farms Subdivision 399 39 -
Tpwd Cleburne State Park 375 1 -
Fishermans Paradise 351 192 -
Crowley II Acre Subdivision 336 424 -
Nolan River Estates 303 1 -
Buffalo Creek 300 160 -
Granda Vista 294 15 -
City of Cresson 285 102 -
Walden Estates 267 29 -
Rolling Oaks Subdivision 252 213 -
Mansfield South 246 106 -
Sunshine Country Acres 219 41 -
Falcon Crest Addition 213 18 -
Rancho Villa Subdivision 195 62 -
Woodland Oaks Estates 189 26 -
Thomas Acres 165 286 -
John Dame 159 285 -
Owen Oil Tools 157 28 -
Shady Hills Estates Water System 150 25 -
Peaceful Meadows Subdivision 141 13 -
Rock Creek Estates 132 157 -
Westlake Village Mobile Home Park 132 116 -
Oak Leaf Trail 132 16 -
Fred Mitchell MHP 132 2 -
Cahill Country Water System 126 98 -
Westover Hills 120 17 -
West Meadow Subdivision 102 5 -
Highland Hideaway RV Park 102 0 -

Compare beyond Texas

Mid-flagged peers for Johnson County

Cross-state counties nearest Johnson County on flagged-system share (96.7%) and cumulative violation count (4,743). 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.