The demographic changes in Thornhill coincided with shifts in median income. From 2013 to 2017, the neighborhood experienced economic growth, with median income rising from $41,147 to $45,514. However, since 2017, there has been a gradual decline in median income, reaching $38,585 in 2022. This decline corresponds with the increasing diversity of the neighborhood, particularly the growth in the Black population.

Despite economic challenges, Thornhill's population grew steadily over the decade, from 3,365 in 2013 to 4,258 in 2022, suggesting the neighborhood remained attractive to new residents.

The demographic shifts observed in Thornhill align with trends seen in many urban areas across the United States, where historically White-majority neighborhoods are becoming more diverse. This trend is often associated with changing housing patterns, economic opportunities, and cultural shifts.

The decline in median income since 2017 may indicate wider economic challenges in the Mobile area or Alabama. This period coincides with national events such as the COVID-19 pandemic, which had significant economic impacts across the country.

Thornhill presents a case study of a neighborhood in transition. Its evolution from a "White Majority" to a "Moderate Diversity" community over the past decade reflects broader demographic trends seen in many urban areas. The concurrent decline in median income raises questions about the economic implications of these demographic shifts and the overall economic health of the region.