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EPA estimates of the Area of Dry Land Close to Sea Level in New Jersey

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The table below provides EPA's estimated uncertainty range of the area of dry land below particular elevations, in square kilometers. The uncertainty range considers the varying accuracy of the elevation data that the EPA study used. For example, Atlantic County has between 14 and 29 square kilometers of dry land within one meter above spring high water

The majority of land close to sea level is wetland rather than the dry land depicted in this table, so the EPA study also provided a table of the area of New Jersey wetlands vulnerable to sea level rise. A printer-friendly file with the area of dry land and wetland vulnerable to sea level rise in New Jersey is also available.

Low and High Estimates of the Area of Land Close to Sea Level in New Jersey1

Meters above Spring High Water

0.5

1.0
2.0
3.0
5.0

low
high

low
high
low
high
low
high
low
high
County

-----Square kilometers of dry land below a given elevation1------------
Atlantic

4
13

14
29

41
54

57
71

88
106
Bergen

0.9
16

10
31

29
44

43
49

51
58*
Burlington

0.1
6.3

1.7
12

9.3
25

18
40

41
    69*
Camden

<0.01
3.8

0.1
7.3

4.3
15

9.5
22

20
35*
Cape May

8
25

26
50

65
93

99
139

180
212
Cumberland

3
16

12
29

30
53

50
77

91
114
Essex

0.4
6.1

3.9
12

11
20

18
25

28
32*
Gloucester

0.2
9.2

6.1
18

18
33

30
47

54
69
Hudson

0.6
16

10
32

31
49

46
57

60
67*
Mercer

0
0.1

0
0.1

0.1
0.2

0.2
0.4

0.3
0.4*
Middlesex

0.4
8.8

4.3
17

15
31

25
44

46
62*
Monmouth

4.1
10

11
20

31
39

49
57

82
87
Ocean

4.6
19

22
44

67
81

93
107

137
149
Passaic

0
0.2

0.1
0.3

0.3
0.7

0.6
1.1

1.3
1.9*
Salem

5.9
27

21
49

54
84

84
114

135
160
Somerset

0
0

0
0

0
0

0
0

0
0.2*
Union

0.4
6.9

4.2
14

13
23

20
29

32
41*
Ellis Island2

<0.01
0.05

0.03
0.1

0.09
0.14

0.14
0.14

0.14
0.14
Statewide

32
184

148
365

418
645

642
878

1046
1265*
*This value is probably too low because of a data limitation.  See the EPA report..

1. Low and high are an uncertainty range based on the contour interval and/or stated root mean square error (RMSE) of the input elevation data. Calculations assume that half of the RMSE is random error and half is systematic error. For a discussion of these calculations, see the EPA report.
2.  Includes Liberty Island and the part of Ellis Island in New York.