Mar-Mac's population has declined from 5,770 in 2014 to 4,880 in 2022. Despite this decrease, the median income has increased from $32,591 in 2014 to $51,520 in 2022, suggesting an improvement in economic conditions for residents.

The racial composition of Mar-Mac has changed notably in recent years. The white population has decreased from 50% in 2014 to 40% in 2022, while the Hispanic population has grown from 21% to 34% during the same period. The Black population has slightly decreased from 25% to 22%. These demographic shifts may indicate changing housing needs within the community.

Mar-Mac's LIHTC-funded affordable housing inventory consists of one project providing 60 units, representing a small portion of the city's estimated housing stock. The Myrtle Place Apartments, completed in 2004, has served the community for nearly two decades. Despite a declining population, the city has experienced a significant increase in median income over the past decade. The changing racial demographics, particularly the growth in the Hispanic population, may suggest evolving affordable housing needs in the community. The current LIHTC inventory covers a small percentage of the housing stock, but other affordable housing programs may also contribute to meeting the city's low-income housing needs.