Over the past decade, the Mark Twain neighborhood has experienced a significant population decline, from 3,878 residents in 2014 to 2,413 in 2022. Despite this decrease, the median income has shown some fluctuation but overall growth, rising from $26,266 in 2014 to $29,990 in 2022.

The racial composition of the neighborhood has remained predominantly Black, though there has been a slight decrease in the Black population percentage from 99% in 2014 to 93% in 2022. Concurrently, there has been a small increase in the White population, from 1% to 5% over the same period.

No new LIHTC projects have been recorded in the neighborhood since 2002. This could be related to the declining population trend, which may have reduced the demand for additional affordable housing units in recent years.

The Mark Twain neighborhood in St. Louis has a modest LIHTC funded affordable housing inventory, covering about 3.14% of the estimated housing stock. The majority of these projects were developed in the late 1980s and early 1990s, with the most recent project completed in 2002. The neighborhood has experienced significant population decline over the past decade, alongside a slight increase in median income and minor shifts in racial composition. These demographic changes may have influenced the lack of new LIHTC funded projects in recent years. The existing affordable housing stock primarily consists of larger units, potentially catering to families within the community.