Shelby County is a county located in the U.S. state of Alabama. As of the most recent data available, the county has a population of approximately 143,293 people, with a population density of about 180.24 persons per square mile.
The county spans a total land area of 795.00 square miles (2,059.00 square kilometers). The administrative center and county seat is Columbiana, which often serves as a hub for local governance and services. The largest city within the county by population is Alabaster.
Geographically, Shelby County experiences varied elevations, with its highest point at Lake Purdy 660 ft and its lowest point at Pelham 0 ft. The region operates in the UTC-6.