CDC reports

Iron deficiency is a condition resulting from too little iron in the body. Iron deficiency is the most common nutritional deficiency and the leading cause of anemia in the United States.

Food Source Iron (mg)
Beef, liver 7.5
Beef, corned 2.5
Beef, lean ground; 10% fat 3.9
Beef, round 4.6
Beef, chuck 3.2
Beef, flank 4.3
Chicken, breast w/out bone 0.9
Chicken, leg w/bone 0.7
Chicken, liver 7.3
Chicken, thigh w/ bone 1.2
Cod, broiled 0.8
Flounder, baked 1.2
Pork, lean ham 1.9
Pork, loin chop 3.5
Salmon, pink canned 0.7
Shrimp, 10 - 2 1/2 inch 0.5
Tuna, canned in water 1.0
Turkey, dark meat 2.0
Turkey, white meat 1.2
Source: MCkinley Health center, University of Illinois