This term, the Blues have been heavily backed with notable sell-out trips to Wycombe, Ipswich and Sheffield Wednesday.
Meanwhile, 1,057 die-hard supporters made the longest trip of the season to date for their visit to Morecambe in November.
But how does Pompey’s following away from home compare to their League One rivals?
The Away Fans have put together the average followings for each side in the third tier, along with the total figures as well as each side’s average miles travelled across the whole campaign.
Here’s where the Blues rank on that list.