Based on the historical population data for the Illinois Rock City ZIP code 61070, the area has experienced gradual population changes over the past decade. The population density in 2022 was approximately 37 people per square mile, spread across the 33.76 square mile ZIP code area.

Given the low population density, this ZIP code can be characterized as a remote rural area. Remote rural areas typically feature very sparse populations, minimal infrastructure, and limited services. The lifestyle in such areas is predominantly agricultural or undeveloped, with a focus on privacy and self-sustainability. Residents often engage in outdoor and recreational activities, taking advantage of the natural environment and the large expanses of land available to each household, which can often exceed 5 acres.

The population in this ZIP code has remained relatively stable over the years, with minor fluctuations. In 2010, the population was 1,242, and it has since increased slightly to 1,259 in 2022. This stability suggests a consistent lifestyle and demographic composition in the area, with no significant urban development or population influx.