CNB Bank & Trust is a community-oriented, full-service independent bank that currently serves 17 communities in Illinois and Missouri. Trust in a bank develops over time - not in a few months or years, but over decades, and in some cases, centuries. Prior to July of 2011 CNB Bank & Trust, N.A. operated as 4 individual sister banks under the Carlinville National Bank Shares, Inc. Holding Company; Carlinville National Bank, Citizens State Bank, Palmer Bank, and Cornerstone Bank & Trust, N.A.