Table D. Relative Standard Error (percent) for Selected Horticultural Irrigation Data: 2013 
Geographic area 
Horticultural operations 
Irrigated area 
Square Feet Under Protection 
Acres in the open 
United States 
1.8 
4.9 
4.5 
Alabama 
6.8 
32.9 
8.6 
Alaska 
8.0 
58.4 
38.8 
Arizona 
11.9 
38.4 
16.9 
Arkansas 
16.6 
42.6 
72.0 
California 
11.1 
10.7 
17.4 
Colorado 
27.5 
52.1 
9.6 
Connecticut 
6.7 
23.1 
12.7 
Delaware 
9.7 
29.8 
11.4 
Florida 
4.5 
11.8 
6.1 
Georgia 
7.9 
21.6 
8.4 
Hawaii 
4.0 
15.8 
7.9 
Idaho 
8.2 
55.3 
(D) 
Illinois 
6.4 
26.3 
7.0 
Indiana 
6.0 
18.9 
24.6 
Iowa 
7.0 
25.8 
9.0 
Kansas 
9.1 
44.2 
5.8 
Kentucky 
6.1 
29.1 
19.9 
Louisiana 
7.4 
18.6 
21.9 
Maine 
6.3 
24.3 
9.6 
Maryland 
7.9 
21.5 
9.2 
Massachusetts 
8.6 
20.7 
13.0 
Michigan 
7.4 
18.1 
24.5 
Minnesota 
6.8 
21.4 
10.4 
Mississippi 
14.4 
40.5 
29.0 
Missouri 
9.6 
25.4 
8.2 
Montana 
24.0 
34.5 
11.6 
Nebraska 
9.8 
29.2 
10.5 
Nevada 
46.9 
70.9 
9.9 
New Hampshire 
7.0 
21.4 
17.1 
New Jersey 
6.2 
19.0 
7.5 
New Mexico 
20.9 
25.1 
18.3 
New York 
4.5 
32.7 
8.1 
North Carolina 
6.5 
20.5 
8.5 
North Dakota 
1.0 
60.5 
61.7 
Ohio 
5.3 
18.0 
10.4 
Oklahoma 
12.4 
29.9 
6.9 
Oregon 
4.3 
17.8 
(D) 
Pennsylvania 
5.3 
28.8 
11.1 
Rhode Island 
9.8 
37.4 
21.5 
South Carolina 
8.0 
30.6 
16.4 
South Dakota 
16.1 
30.1 
14.0 
Tennessee 
5.7 
42.7 
8.5 
Texas 
13.4 
30.4 
12.4 
Utah 
10.5 
33.3 
10.7 
Vermont 
7.8 
22.4 
24.0 
Virginia 
8.2 
26.5 
25.5 
Washington 
19.3 
17.6 
17.6 
West Virginia 
8.3 
20.9 
15.8 
Wisconsin 
6.5 
21.4 
25.8 
Wyoming 
13.3 
43.0 
4.3 
Water Resources Regions 
Region 01 New England 
2.7 
16.7 
14.5 
Region 02 Mid-Atlantic 
3.0 
12.3 
6.3 
Region 03 South Atlantic-Gulf 
2.8 
10.0 
4.0 
Region 04 Great Lakes 
3.7 
14.8 
20.8 
Region 05 Ohio 
3.5 
28.0 
9.3 
Region 06 Tennessee 
8.0 
23.3 
13.9 
Region 07 Upper Mississippi 
3.7 
12.2 
12.2 
Region 08 Lower Mississippi 
8.7 
21.1 
14.6 
Region 09 Souris-Red-Rainy 
20.8 
61.2 
79.1 
Region 10 Missouri 
12.9 
28.3 
8.9 
Region 1 1 Arkansas-White-Red 
8.9 
20.6 
35.7 
Region 12Texas-Gulf 
13.3 
31.7 
15.1 
Region 13 Rio Grande 
15.0 
24.4 
34.2 
Region 14 Upper Colorado 
13.0 
32.7 
18.0 
Region 15 Lower Colorado 
12.0 
42.5 
17.7 
Region 1 6 Great Basin 
12.7 
39.4 
12.0 
Region 1 7 Pacific Northwest 
7.7 
16.3 
8.5 
Region 18 California 
11.1 
10.9 
17.3 
Region 19 Alaska 
8.0 
58.4 
38.8 
Region 20 Hawaii 
4.0 
15.8 
7.9 
2012 Census of Agriculture Appendix A A- 7 
USDA, National Agricultural Statistics Service 
