The historical population data for the ZIP code 16647, which encompasses Marklesburg in Pennsylvania, suggests a remote rural lifestyle and limited urban development activity. With a land area of 30.78 square miles and a population of 988 in 2022, the population density stands at 32.1 people per square mile. This low population density is a key characteristic of remote rural areas, which typically have fewer than 50 people per square mile.

Over the past decade, the population in this ZIP code has grown from 855 in 2010 to 988 in 2022, representing a modest 15.6 percent increase. The population density has also increased slightly from 27.78 people per square mile in 2010 to 32.1 in 2022. Despite this growth, the area remains sparsely populated, indicating minimal urban development and a predominantly agricultural or undeveloped landscape.

Given the national average household size of 2.61, the estimated number of housing units corresponding to the 2022 population is approximately 379. This suggests that households in this area likely occupy large expanses of land, potentially more than 5 acres per household, which is typical of remote rural regions.