Infrastructure
Delaware vs Texas: Water Quality Score
Delaware has a higher water quality score than Texas.
National Rankings
Where They Rank Nationally
See where both states fall among all 50 states for water quality score.
Delaware
#33 · 81.3/100 (A)
Texas
#41 · 78.1/100 (B)
Lowest
Highest
Top 10 States — Water Quality Score
#1
Hawaii
99.9/100 (A)
Hawaii
#2
North Carolina
99.7/100 (A)
North Carolina
#3
New Hampshire
99.5/100 (A)
New Hampshire
#4
Louisiana
98.9/100 (A)
Louisiana
#5
Alaska
97.7/100 (A)
Alaska
#6
South Dakota
96.5/100 (A)
South Dakota
#7
New Mexico
95.9/100 (A)
New Mexico
#8
Indiana
95.2/100 (A)
Indiana
#9
Oregon
90.5/100 (A)
Oregon
#10
Vermont
88.2/100 (A)
Vermont
Selected states
#33
Delaware
81.3/100 (A)
Delaware
#41
Texas
78.1/100 (B)
Texas
Delaware ranks 33rd and Texas ranks 41st nationally for water quality score.
What this means
Delaware vs Texas: Water Quality Score in context
Delaware's water quality score is 81.3/100 (A), compared with 78.1/100 (B) in Texas. State tap-water score on a 100-point scale from the existing water-quality ranking.
Delaware
81.3/100 (A)
Texas
78.1/100 (B)
Difference
3.20 points
People also ask
Delaware vs Texas Water Quality Score — common questions
QWhat is Delaware's water quality score?
Delaware's water quality score is 81.3/100 (A).
QWhat is Texas's water quality score?
Texas's water quality score is 78.1/100 (B).
QWhich state has a higher water quality score — Delaware or Texas?
Delaware has a higher water quality score than Texas.
More comparisons: Delaware vs Texas
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Data source and freshness
Primary source
Data period
2026 ranking
Dataset reviewed
July 23, 2026
Method note
TapWaterData.com composite score; it is not an EPA regulatory compliance grade.