The Alaska and Hawaii insets have their own axes that are not shown - all mainland points should follow the visible axes. My graph looks different than yours. This image is from JMP 11.2.1, and it looks similar in JMP 12.2. Which version do you have?
Graph Builder(
Size( 636, 577 ),
Show Control Panel( 0 ),
Variables( X( :longitude ), Y( :latitude ) ),
Elements( Points( X, Y, Legend( 1 ), Jitter( 1 ) ) ),
SendToReport(
Dispatch(
{},
"longitude",
ScaleBox,
{Scale( "Geodesic US" ), Minor Ticks( 0 )}
),
Dispatch(
{},
"latitude",
ScaleBox,
{Scale( "Geodesic US" ), Minor Ticks( 1 )}
),
Dispatch(
{},
"Graph Builder",
FrameBox,
{Background Map( Boundaries( "US States" ) ), Grid Line Order( 2 ),
Reference Line Order( 3 )}
)
)
);