Mill Plain has experienced demographic shifts over the past decade. The population has decreased from 2,660 in 2012 to 2,227 in 2022. Median income has fluctuated, ranging from $37,875 in 2018 to $55,576 in 2020, before settling at $42,872 in 2022.

The Hispanic population has increased from 23% in 2013 to 39% in 2022, while the white population has decreased from 58% to 42%. The Black population has remained relatively stable at 13-16% throughout the decade. The completion of Frost Homestead in 2015 coincides with these demographic changes, potentially responding to evolving housing needs.

Mill Plain's LIHTC-funded affordable housing inventory provides an important resource for low-income residents. The diverse unit mix at Frost Homestead attempts to meet varied housing needs. The neighborhood's significant demographic changes over the past decade, including shifts in racial composition and median income, may have influenced the development of affordable housing options. Ongoing assessment of affordable housing needs will be crucial to ensure alignment with the changing demographics and economic conditions of Mill Plain.