Montgomery County is located in the State of Alabama. As of the 2020 census, its population was 228,954, making it the seventh-most populous county in Alabama. Its county seat is Montgomery, the state capital. Montgomery County is included in the Montgomery, AL Metropolitan Statistical Area. of the roughly 229,000 residents of Montgomery county, about 200,000 lived in the county seat of Montgomery, and another 10,000 in the only other incorporated community, Pike Road.