If you are reordering checks, receiving a wire transfer, setting up direct deposit or automatic payment, or telling the IRS to direct deposit your tax refund, you will likely be asked to provide Mahopac National Bank's routing number, as well as your checking account number.
Mahopac National Bank's routing number is 021911398.
Both the routing number and your account number are printed on your checks as shown in the example below

Please note that your Mahopac National Bank checking account number is 9 digits