The area median income (AMI) is a statistic generated by HUD for purposes of determining the eligibility of applicants for certain federal housing programs. The AMI is the middle number of all of the incomes for the given area. Each year, HUD calculates the median income for every metropolitan region in the country. HUD focuses on the region — rather than just the city — because families searching for housing are likely to look beyond the city itself to find a place to live.