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Demographics
Population
Population Density
Based on the historical population data for ZIP code 78605, which corresponds to Bertram in Texas, the area has experienced steady population growth over the past decade. The population increased from 4,724 in 2010 to 6,424 in 2022, representing a 36 percent growth rate over the 12-year period. Simultaneously, the population density has risen from 30.4 people per square mile in 2010 to 41.34 people per square mile in 2022.
Despite this growth, the population density of Bertram remains below 50 people per square mile, indicating that the area is still primarily characterized by a remote rural lifestyle. This lifestyle typically involves large expanses of land per household, often more than 5 acres, with a focus on privacy and self-sustainability. The predominant land use is likely agricultural or undeveloped, with residents engaging in outdoor and recreational activities due to the natural environment.
The estimated number of housing units corresponding to the 2022 population is 2,461, based on the national average household size of 2.61 people per household. Given the ZIP code's size of 155.41 square miles, this translates to an average of approximately 15.8 housing units per square mile, further reinforcing the area's remote rural character.
While the population and population density have increased over the past decade, the growth has not been significant enough to alter the fundamental lifestyle and urban development activity in Bertram. The area remains sparsely populated, with minimal infrastructure and limited services, and is likely to continue attracting residents who value privacy, self-sustainability, and a close connection to the natural environment.