The median income in Mount Pleasant has fluctuated considerably from 2013 to 2022, increasing overall from $40,971 to $47,562. Notable fluctuations include a dip to $33,844 in 2014, a sharp increase to $70,422 in 2019, and a subsequent decline and stabilization around $47,500 in recent years. These economic fluctuations have not significantly impacted the racial demographics of the area.

Population trends have been variable, with a low of 751 in 2016 and a high of 1,065 in 2021. The 2022 population of 1,043 represents a slight increase from the beginning of the decade, despite fluctuations.

Mount Pleasant's persistent Low Diversity status contrasts with national trends towards increasing diversity in many areas of the United States. While many urban and suburban areas have seen growing minority populations and shifts towards Moderate or High Diversity, this small Arkansas town has maintained a predominantly white population.

The economic fluctuations observed, particularly the sharp rise and fall in median income between 2018 and 2020, may reflect broader economic trends or local economic events. The relationship between these changes and wider patterns in similar small towns in Arkansas or the broader region is unclear without more detailed regional data.

Mount Pleasant demonstrates demographic stability in terms of racial composition, maintaining its Low Diversity status throughout the decade. This stability persists despite notable economic fluctuations, suggesting that local economic changes have not significantly altered the racial makeup of the community. The slight increase in the Hispanic population, while minor, could potentially indicate future diversification, but as of 2022, it has not substantially impacted the overall demographic landscape of the area.