As of the 2013 census, Vermont has a population of approximately 626,000.
And yet the Vermont State Police have a database of almost 8 million location records they collected during the period July 2012 – December 2013. The records were compiled from the 61 Automated License Plate Readers (ALPR) in the state, and the data can be requested by state, local, and federal agencies. Federal requests were mostly from the Border Patrol.
You can read more about Vermont’s law, its data retention provisions, and details of data requests and the reasons for them in this report filed by the State Police with the state legislature.
Thanks to Joe Cadillic for this link.