Data from the 2020 decennial census released in September by the U.S. Census Bureau shows how residential populations within cities, school district boundaries and counties have changed over the last two decades. Local demographics have also changed as more residents have moved to the Conroe, Montgomery and Willis areas.

The Conroe, Montgomery and Montgomery County populations have more than doubled since 2000. Since 2010, the number of residents within Conroe, Montgomery and Willis ISDs has risen at least 26%. The percentage of residents who are white declined from 2010-20 in each area except Montgomery, where it increased from 67.15% to 77.67% from 2010-20. Additionally, although the number of Black/African American residents within Conroe grew by nearly 60% in 10 years, the percentage of city residents who are Black/African American has fallen. As the total number of residents has grown, the number of Hispanic or Latino residents within each locality has also increased, more than doubling within Montgomery and Montgomery ISD boundaries from 2010-20. However, the percentage of residents who are Hispanic or Latino has remained relatively steady across the decade.