There is no one answer to this question as it depends on the state in question. In some states, such as New York, bingo is completely legal while in others, such as Kansas, it is illegal to hold bingo games without a license.
Some states have specific lAWS governing the conditions under which bingo can be played (such as age restrictions), while others have more general lAWS prohibiting gambling. As with most things legal and illegal in the United States, it is best to consult with a local attorney or gaming commission to find out for sure.
In conclusion, there is no definitive answer as to whether or not bingo is legal in every state in the United States. It is best to consult with a local attorney or gaming commission to determine legality in a specific state.