AFC Fylde's drop from the National League was sealed following a 1-0 loss to Halifax.
Ryan Galvin's first-half strike ensures that David Longwell's team will compete in the National League North in the upcoming season.
Adam Senior directed a cross towards the penalty area in the 28th minute, which Galvin headed into the net with power.
Halifax, who are striving for a spot in the playoffs, came close to extending their lead early in the second half, but Luca Thomas's strong shot hit the crossbar and bounced back into play.