ACNB Bank is a wholly-owned subsidiary of ACNB Corporation, an independent financial holding company headquartered in Gettysburg, PA. Originally founded in 1857, ACNB Bank serves its marketplace with banking and wealth management services, including trust and retail brokerage, via a network of 21 community banking offices, located in the four southcentral Pennsylvania counties of Adams, Cumberland, Franklin and York, as well as loan offices in Lancaster and York, PA, and Hunt Valley, MD. As divisions of ACNB Bank operating in Maryland, FCB Bank and NWSB Bank serve the local marketplace with a network of five and seven community banking offices located in Frederick County and Carroll County, MD, respectively. Affiliated with ACNB Bank is Russell Insurance Group, Inc., of Westminster, MD, a full-service insurance agency with licenses in 44 states and the other wholly-owned subsidiary of ACNB Corporation.

ACNB Bank Customer Service Telephone

1.888.334.ACNB (2262) – Toll-Free

1.888.338.ACNB (2262) – Toll-Free


Debit Card or Line of Credit Card:
1.800.472.3272 – Toll-Free

Credit Card:
1.800.362.6299 – Toll-Free

Online Banking Login

How to Log In

1. Visit the bank’s website


2. The Login is located to the upper right part of their page.


3. You will be required to log in with your Username and Password.


How to Enroll

1. Click on the “Login” button beside the Forgot password.


2. Once you click on the button, you will be directed to another page. You can fill out all the blank fields with the needed information. Click on “Continue”.


Video For Mobile Deposit


Routing/Wiring Instructions

ACNB Bank customers will be required to have a routing number or routing transit number is a 9 digit number that identifies a financial institution in a transaction and the location where your bank account was opened. The most common types of transactions are ACH and wire transfers. You’ll often be asked for your checking account routing number when you’re making a payment online or by phone.

Some banks and financial institutions usually have multiple routing numbers serving different purposes, geographical regions, and branches. Therefore it is important to ensure that you are using the correct routing number before you initiate a money transfer.

A routing number can also be referred to as an RTN, a routing transit number, or an ABA routing number and can be easily be found printed on the bottom of a check or in the online banking portals of the financial institutions.

How to Find Your Routing Numbers on Check

The best way to find the routing number for your Marquette Bank checking, savings, or business account is to look into the lower-left corner of the bank check.

 Routing Number  Swift Number 031309945  Not part of SWIFT network

Branch Locations And Opening Hours


Lobby Hours Drive Through Hours
By appointment only
Monday – Wednesday: 3:00
Thursday – Friday: 5:30
Monday – Wednesday: 9:00 – 3:00
Thursday – Friday:  9:00 – 5:30
Saturday : 9:00 – 12:00


Lobby Hours Drive Through Hours
Monday – Wednesday: 9:00 – 4:00
Thursday – Friday: 9:00 – 6:00
Monday – Wednesday: 9:00 – 4:00
Thursday – Friday: 9:00 – 6:00
Saturday: 12:00


Lobby Hours Drive Through Hours
By appointment only
Monday – Wednesday: 9:00 – 4:30
Thursday – Friday: 9:00 – 5:30
Saturday: 9:00 – 12:00
Monday – Wednesday: 9:00 – 4:30
Thursday – Friday: 9:00 – 5:30
Saturday: 9:00 – 12:00
                                     Please click here  for more location.


Routing number