Texas Water Quality Rankings 2026

All 11 cities ranked by water quality score

State Average88/100

Cities Ranked

El Paso

Best City (97/100)

Irving

Lowest Score (65/100)

82%

Above National Avg

Grade Distribution

How Texas's 11 cities are distributed by water quality grade

A Range

73% of cities

B Range

9% of cities

C Range

18% of cities

0% of cities

Cities with good water quality (B or better)82%

9 out of 11 cities meet or exceed a B grade for water quality

All 11 Texas Cities Ranked

Sorted by water quality score from best to worst. Click any city for a detailed water quality report.

Rank	City	Score	Grade	Population	Top Concern
1	El Paso	97/100	A+	1,821	None identified
2	Austin	95/100	A+	1,000,000	None identified
3	Dallas	95/100	A+	2,300,000	None identified
#4	Plano	95/100	A+	290,000	None identified
#5	San Antonio	95/100	A+	1,800,000	None identified
#6	Arlington	93/100	A	405,420	None identified
#7	Fort Worth	93/100	A	405,420	None identified
#8	Houston	89/100	A-	2,970,543	None identified
#9	Corpus Christi	80/100	B+	848	None identified
#10	Lubbock	67/100	C+	2,250	None identified
#11	Irving	65/100	C+	75	None identified

Key Findings

The best water quality in Texas is found in El Paso with a score of 97/100 and a grade of A+. This puts El Paso among the top-performing cities in the country for drinking water safety.

The most concerning water quality is in Irving scoring 65/100 with a grade of C+. Residents may want to consider home water testing and filtration options.

The statewide average score is 88/100, which is 16 points above the national average of 72/100. A strong majority (82%) of Texas cities exceed the national average, indicating generally good water infrastructure across the state.

Frequently Asked Questions

Which city in Texas has the best water quality?

El Paso has the best water quality in Texas with a score of 97/100 and a grade of A+. This score is based on contaminant levels, EPA compliance history, and infrastructure quality. El Paso ranks among the top cities nationally for water quality.

Is Texas tap water safe to drink?

Water quality varies across Texas. The state average score is 88/100. 82% of Texas cities have good water quality (grade B or better). All cities in Texas maintain at least a C-grade, though individual results can vary by neighborhood and home plumbing. Always check your specific city's water quality report for the most accurate local information.

How many Texas cities have water quality concerns?

Of the 11 cities tracked in Texas, 0 cities have a D or F grade, indicating significant water quality concerns. An additional 2 cities fall in the C range, suggesting moderate issues. 9 out of 11 cities (82%) score above the national average of 72/100. Residents concerned about their water quality can check their city's detailed report for specific contaminant information.