The figures show a considerable year-on-year increase from January 2018, when a total of $4.5m was wagered, leading to revenue of $177,000.
This represented a 64% rise in the amount wagered and a 57% rise in revenue.
Of total digital betting, $3.8m was wagered on table games, while $3.6m was bet on Delaware’s video lottery. Net revenue for poker was $22,000.
As always, online wagering was spread across three venues: Delaware Park, Dover Downs and Harrington.
The largest share of handle ($3.2m) came from Dover Downs, while Delaware Park saw $2.8m played.
At Harrington, $1.4m was wagered, while there was a total of 578 new registrations in January across the three locations.
The Delaware Lottery is yet to announce sports betting figures for January.