How many water violations are in Brazoria County?

Brazoria County has 25,596 total drinking water violations across 326 water systems, of which 4,594 are health-based violations. 83.4% of systems have at least one violation.

How many people get water from Brazoria County systems?

Water systems in Brazoria County serve approximately 406,255 people through 326 public water systems.

Has PFAS been detected in Brazoria County water?

Under EPA UCMR5, 9 of 23 tested systems in Brazoria County had at least one PFAS detection (39.1% of the UCMR5-tested subset - not of all 326 SDWIS systems).

What types of water sources supply Brazoria County?

Water systems in Brazoria County use GW (308 systems), SW (18 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 17.9% of Brazoria County's violations are health-based. Among counties with any SDWIS violations, this extract puts Brazoria County in the middle health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Brazoria County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Brazoria County ranks #178 of 3,254 counties by people served, and #15 of 254 counties in Texas. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Texas

Brazoria County, Texas

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet TX039 · Brazoria County 326 sys · 25,596 viol · #178/3254

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

VIOL-SEVERE 83.4% flagged
HEALTH-LOW 17.9% health
RANK-TOP #178/3254
PHOTO-FINISH ±0.6 pp
PFAS-MID 39.1% detect
SRC-GW GW lead 94%
SYS-LARGE 326 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Randall County ( -0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Brazoria County ranks #178 of 3,254 counties by people served, and #15 of 254 counties in Texas. See methodology · corpus placement.

Brazoria County standing, lower-flagged corpus third

Flagged-system rate 83.4% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 17.9% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 39.1% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #178 of 3,254 · #15 of 254 in Texas.

Water Systems

System Name	Population	Violations	PFAS
City of Pearland	125,828	60	Detected
City of Angleton	27,333	95	Detected
City of Lake Jackson	27,314	12	Detected
City of Alvin	26,244	16	Clean
City of Clute	10,604	38	Detected
City of Freeport	10,594	29	Detected
City of Manvel	8,437	51	-
City of Richwood	7,605	47	Detected
Brazoria County MUD 6	6,926	0	Clean
City of Pearland MUD 1	5,947	36	Clean
Brazoria County MUD 29	5,898	6	Clean
Village of Surfside Beach	5,697	852	Detected
Brazoria County MUD 22	5,310	2	Clean
Brazoria County MUD 25	5,250	97	Clean
Brazoria County MUD 55	5,229	4	-
Tdcj Ramsey Area	5,119	67	Clean
Brazoria County MUD 31	5,097	0	Clean
Brazoria County MUD 21	4,833	5	Clean
Brazoria County MUD 3	4,230	1	Clean
City of Sweeny	3,978	65	Clean
City of West Columbia	3,878	33	Clean
Brazoria County MUD 2	3,567	129	Clean
Varner Creek Utility District	3,111	23	-
Brazoria County MUD 39	3,036	0	-
Dow Chemical Company Plant B	3,000	12	-
New Hope Church	3,000	4	-
Brazoria County MUD 53	2,910	0	-
City of Brazoria	2,877	103	Detected
Brazoria County MUD 56	2,643	0	-
Tdcj Memorial Unit	2,501	53	-
Sweeny Refinery	2,500	27	-
Brazoria County MUD 40	1,986	0	-
Sedona Lakes MUD 1	1,977	1	-
Brazoria County MUD 32	1,971	0	-
Brazoria County Sheriffs Office Detentio	1,953	342	-
City of Oyster Creek	1,701	60	-
City of Danbury	1,673	187	-
Basf Freeport Site	1,480	55	-
Southwood Estates	1,347	62	Clean
Dow Chemical Company Plant A	1,200	7	-
Suncreek Estates Section 1	1,083	58	-
Oak Crest of Manvel	1,020	72	-
Treasure Island MUD	951	315	-
Jones Creek Terrace	951	117	-
Town of Holiday Lakes	921	47	-
Schlumberger Rosharon Campus	918	270	-
City of Liverpool	870	381	-
City of Hillcrest Village	813	2	-
Brazoria County Fwsd 1 Damon	780	88	-
Brazoria County MUD 24	708	4	-

Compare beyond Texas

Lower-flagged peers for Brazoria County

Cross-state counties nearest Brazoria County on flagged-system share (83.4%) and cumulative violation count (25,596). 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

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

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.