Look at the post RRD Roll Call on the Antiques Forum. But basically, east of the Mississippi, and then some, ie, Oklahoma.

Pre-internet, the USDA was tracking the spread of RRD. That got defunded over a decade ago.

The most recent map I know of was one that was presented at the American Phytopathological Society in a poster session that had Peck, Amrine, Boudoin, and Hansen as co-authors. I am the Peck on that reference.

We put it together.

The problem with a map is that it reported where RRD had been found, not where it was. States like Ohio where solid infected. Arkansas north of the Ouachitas, likewise.

But then there are the points of spread: where it's seen in a garden way beyond the "front" of the disease: RRD on some HMusks near Talahassee is such a point- those bushes were removed.
RRD on a garden in Charleston SC and on wild roses just south of Charleston last year.
RRD on one patch of multiflora in central Massachusettes.
RRD on several roses (now removed) in Elizabeth Park, CT.

And locations in Canada that you can read about in my ebook from a paper I did for National Roses Canada.

Here is a link that might be useful: Rose Rosette E-book