According to the BoardSource governance survey, the average size of a board is 17 members, the median being 15. Organizations with larger budgets tend to have larger boards. It is always good to remember: Average figures only reflect the reality, not a recommended norm.

In most states, the laws dictate the minimum size for nonprofit boards. Usually three is the minimum, but in some states only one or two board members are required. Equally, it is good to remember that laws regulate the minimal legal requirements, not what your optimal goal should be.

When determining the size of your board, start by thinking about what your board needs to accomplish. Optimal board size may vary according to the stage in the board's lifecycle, its mission, its fundraising necessities, and whether it is a national or a local board.

References