RCU's routing number is 291880411.
Go to the account you want the routing number for and click the account name link to open the Account History page. Click the See account details link in the account summary window in the upper right-hand part of the screen. If it's available, the routing number will be listed with other relevant account details (please note that the routing number may not be displayed).
When you are finished, click the Hide account details link to collapse the extra information. (NOTE: Your routing number can also be found at the bottom of a physical check. It's the first set of 9 numbers on the left-hand side.)