Now, we can reveal the top 10 destinations people going in the opposite direction were headed for.
A total of 14,550 people left the area for a new life elsewhere in the UK in the same 12-month period, the Office for National Statistics figures show.
From Daventry to Birmingham here are the places draining the most people from Northampton.
5. Milton Keynes - 483
In total, 483 people moved to Milton Keynes from Northampton in the 12 months to June 2019. Photo: Getty Images
6. East Northamptonshire - 433
In total, 433 people moved to East Northamptonshire from Northampton in the 12 months to June 2019
7. Birmingham - 356
In total, 356 people moved to Birmingham from Northampton in the 12 months to June 2019. Photo: Getty Images
8. Leicester - 292
In total, 292 people moved to Leicester from Northampton in the 12 months to June 2019. Photo: Getty Images