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Delaware ZIP Code Water Quality

65 ZIP codes with water quality data · State average grade: B

ZIP Codes
65
Avg Grade
B
A or B
80%
D or F
6%
Grade Distribution

How Delaware ZIP codes scored

12%
68%
14%
A
8
12%
Excellent
B
44
68%
Good
C
9
14%
Fair
D
2
3%
Poor
F
2
3%
Failing
All ZIP Codes

All 65 ZIP codes in Delaware

ZIP Code Primary City Grade Score Score Cities
19701 Hockessin
B+
 80.5
2
19702 Hockessin
B+
 80.5
2
19706 Delaware City
A+
 96.9
1
19707 Hockessin
B+
 80.5
2
19709 Middletown
B+
 80.1
1
19711 Newark
C-
 56.5
1
19713 Newark
C-
 56.5
1
19715 Newark
C-
 56.5
1
19716 Newark
C-
 56.5
1
19717 Newark
C-
 56.5
1
19720 Wilmington
B
 79.5
2
19721 Wilmington
B
 79.5
2
19725 Newark
C-
 56.5
1
19726 Newark
C-
 56.5
1
19730 Odessa
A-
 89.6
1
19736 Hockessin
B+
 80.5
2
19801 Wilmington
B
 79.5
1
19802 Wilmington
B
 79.5
1
19805 Wilmington
B
 79.5
1
19806 Wilmington
B
 79.5
1
19807 Winterthur
B+
 82.5
1
19809 Wilmington
B
 79.5
1
19850 Wilmington
B
 79.5
1
19880 Wilmington
B
 79.5
1
19884 Wilmington
B
 79.5
1
19885 Wilmington
B
 79.5
1
19886 Wilmington
B
 79.5
1
19890 Wilmington
B
 79.5
1
19893 Wilmington
B
 79.5
1
19894 Wilmington
B
 79.5
1
19895 Wilmington
B
 79.5
1
19896 Wilmington
B
 79.5
1
19898 Wilmington
B
 79.5
1
19899 Wilmington
B
 79.5
1
19901 Dover
B
 75.3
2
19902 Dover
B
 75.3
1
19904 Dover
B
 75.3
2
19905 Dover
B
 75.3
1
19906 Dover
B
 75.3
1
19930 Bethany Beach
B+
 82.4
1
19933 Bridgeville
B+
 84.2
1
19936 Cheswold
B+
 80.9
1
19938 Clayton
A-
 89.8
1
19939 Dagsboro
B
 79.4
1
19940 Delmar
B
 77.9
1
19943 Felton
B-
 70.4
1
19944 Fenwick Island
A-
 85.5
1
19945 Millville
B
 76.4
1
19946 Frederica
A
 92.5
1
19947 Georgetown
F
 24
1
19950 Greenwood
B+
 83.9
1
19952 Harrington
B+
 80.8
1
19956 Laurel
B
 76.4
1
19958 Lewes
D+
 52.8
1
19960 Lincoln
B+
 82.1
1
19962 Magnolia
B
 76.2
1
19963 Milford
A-
 85.5
2
19966 Millsboro
D
 49.4
1
19967 Millville
B
 76.4
1
19968 Milton
B
 78.7
1
19970 Ocean View
A-
 87.5
1
19971 Dewey Beach
C+
 66.8
2
19973 Seaford
F
 37.8
1
19975 Selbyville
A
 92.4
1
19977 Smyrna
C
 63.1
1
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