WaterVerge

Rhode Island Water Quality Rankings

35 cities ranked · Data from EPA SDWIS

69.1
State avg score
35
Cities ranked
60%
A or B grade
23%
D or F grade
34
Health violations
20
PFAS detected

Rhode Island water quality overview

Rhode Island's drinking water quality is fair overall, with a state average score of 69.1 out of 100 — 5.1 points below the national average of 74.2. The median city score is 75.8, reflecting how water quality is distributed across the state's 35 ranked cities. The state shows a mixed picture: 5 cities earned an A grade while 6 cities received an F. The majority fall in the B–C range. PFAS "forever chemicals" were detected in 20 of 35 cities (57%). Of those, 13 cities exceed the 2024 EPA maximum contaminant levels — a health concern requiring action. 1 city has lead levels exceeding the EPA action level of 15 ppb, typically a sign of aging lead service lines or lead solder in older plumbing. Residents in these areas should use an NSF 53-certified filter. 34 cities have recorded health-based violations with the EPA — meaning contaminant levels exceeded safe limits or required testing was missed. Use the table below to find your city's specific record.

How Rhode Island cities scored

14%
46%
17%
17%
A
5
14%
Excellent
B
16
46%
Good
C
6
17%
Fair
D
2
6%
Poor
F
6
17%
Failing

Score distribution by range

13 7 0
1
2
4
2
5
6
13
2
0–9
10–19
20–29
30–39
40–49
50–59
60–69
70–79
80–89
90–100

State vs national average

C+
Rhode Island
69.1/100
B-
National avg
74.2/100
▼ 5.1 pts below national average

Water quality across Rhode Island

Each dot is a city, colored by grade. Size reflects population served. Click any city to view its full report.

Rhode Island city water quality map

All 35 cities in Rhode Island

# City Grade Score Score Population Violations Issues
1 Barrington
A
92.4
49K 38 Health Unresolved
2 Lincoln
A
90.6
22K 4 Unresolved
3 Cumberland
A-
87.5
98K 13 Health Unresolved
4 Cumberland
A-
87.5
98K 13 Health Unresolved
5 East Providence
A-
86.5
48K 12 Health Unresolved
6 Jamestown
B+
84.2
3K 22 Health Unresolved
7 Cranston
B+
82.3
333K 11 Health Unresolved
8 Cranston
B+
82.3
333K 11 Health Unresolved
9 Cranston
B+
82.3
333K 11 Health Unresolved
10 Barrington
B+
82.3
49K 44 Health Unresolved
11 Coventry
B+
82
89K 8 Health PFAS Unresolved
12 Coventry
B+
82
89K 8 Health PFAS Unresolved
13 Coventry
B+
81.7
117K 59 Health PFAS Unresolved
14 New Shoreham
B+
80.1
10K 77 Health Unresolved
15 Coventry
B
80
89K 20 Health PFAS Unresolved
16 Middletown
B
77.2
50K 65 Health Unresolved
17 Middletown
B
77.2
42K 45 Health Unresolved
18 Cumberland
B
75.8
119K 43 Health PFAS Unresolved
19 Woonsocket
B-
73.2
46K 28 Health PFAS Unresolved
20 Cranston
B-
72.2
422K 19 Health PFAS Unresolved
21 Barrington
B-
70.9
49K 88 Health Unresolved
22 Coventry
C+
69.1
164K 40 Health PFAS Unresolved
23 Smithfield
C+
68.5
20K 54 Health Unresolved
24 Coventry
C+
66.2
90K 42 Health PFAS Unresolved
25 North Smithfield
C+
65.6
6K 36 Health Unresolved
26 Westerly
C
60.4
35K 70 Health PFAS Unresolved
27 Richmond
C-
55.7
3K 48 Health Unresolved
28 Narragansett
D+
52.4
13K 44 Health PFAS Unresolved
29 Tiverton
D
46.5
15K 173 Health Unresolved
30 Burrillville
F
43
8K 179 Health Unresolved
31 Charlestown
F
43
2K 173 Health Unresolved
32 Middletown
F
41.8
61K 151 Health Unresolved
33 Coventry
F
36.1
99K 128 Health PFAS Unresolved
34 South Kingstown
F
32.5
53K 240 Health PFAS Unresolved
35 Exeter
F
29
1K 226 Health Lead Unresolved