The ZIP code 76066, which encompasses Millsap in Texas, has experienced significant population growth and urban development over the past decade. The population data reveals that from 2010 to 2022, the population increased from 3,077 to 4,316, representing a growth rate of approximately 40 percent. This growth has been accompanied by a corresponding increase in population density, which rose from 34.97 people per square mile in 2010 to 49.05 people per square mile in 2022.

Based on the 2022 population density of 49.05 people per square mile, this area can be classified as a remote rural region. Remote rural areas are characterized by very sparse populations, minimal infrastructure, and limited services. The lifestyle in these areas is predominantly agricultural or undeveloped, with a focus on privacy and self-sustainability. Common activities include outdoor and recreational pursuits due to the natural environment.

The estimated number of housing units corresponding to the 2022 population is 1,653, assuming the national average household size of 2.61 people per household. Given the ZIP code's size of 88.0 square miles, this translates to an average of approximately 18.8 housing units per square mile. This low housing density is consistent with the remote rural classification, where households typically occupy large expanses of land, often more than 5 acres.