The break-in happened between 4am and 5am on Monday, May 13, at a property in Dale Crescent.
Items including cash and a wallet were taken.
No further details have been released by the force.
A spokesman said: “Anyone with information about the burglary is asked to call Northamptonshire Police on 101.
“Information can also be shared anonymously via Crimestoppers on 0800 555111.”