Any kind of red meat and also spinach is very high in iron. Routine bloodwork will show if you're iron deficient, and if your doctor hasn't caught anything you should be fine!
And remember, too much iron can lead to heart disease. The most well absorbed food sources of iron are green leafy vegetables, particularly parsley, dandelion greens, and the like. Beets are a good source. Few people know how to prepare them in the US, but nettles are also a good source. Seaweed is a good source. Combining these will get you enough and they are very healthy ways of getting your iron. Animal liver is another good source, but not as healthy overall as the liver is where toxins are stored.
It depends on your age, and overall health! Woman between the age of 19 and 50 need 18 mg of iron per day. I suggest seeing your doctor and have it checked to see if you need more.