Those who do not qualify as immediate family members may be eligible for a family preference visa. The first preference in this category is for unmarried adult children of U.S. citizens and any minor children they have. Second preference goes to the spouses and unmarried children of lawful permanent residents. Although this includes unmarried adult children, most visas in this category are granted to the spouses and minor children.
Third preference family visas are allocated to the married children of U.S. citizens and their spouses and minor children. Finally, the last family preference category covers brothers and sisters of U.S. citizens, plus their spouses and minor children. Grandparents, grandchildren, aunts, and uncles do not have a close enough relationship to qualify for a family preference immigrant visa.