From there, Roslyn Road continues northeast, passing several local streets before reaching an intersection with Jericho Turnpike (NY 25).

It then continues northeast and enters the Village of East Williston a few blocks later, at which point Roslyn Road gently curves towards the north, intersecting with several residential streets before reaching East Williston (Hillside) Avenue (NY 25B; CR 85) in the heart of the village.

[4][5][6] CR 7A then continues north, intersecting several more residential streets before entering Roslyn Heights at the site of the former crossing of the Long Island Motor Parkway.

[4][5][6] Roslyn Road then continues through the area, soon reaching – and crossing over – the Northern State Parkway, with which it intersects via exit 29.

[4][5][6] CR 7A continues northwest from there along Main Street, crossing underneath the Long Island Rail Road's Oyster Bay Branch, and then intersecting Railroad Avenue immediately afterwards.

From there, Main Street curves towards the north-northwest through the historic heart of Roslyn, eventually intersecting Paper Mill Road.

Now running along Nassau Road, CR 7B veers to the north-northwest and passes through the heart of Roosevelt, intersecting several local streets, and it eventually crossing over the Southern State Parkway, with which it interchanges via exit 21.

From there, CR 7 continues northwest, eventually reaching Argyle and Harold Avenues, where it enters the Village of Hempstead and becomes Greenwich Street.

[11][12] When Nassau County first signed its highways in 1959, CR 7 continued north and east from Roslyn to Glen Cove – and further south from its current terminus in Freeport, through that village, to the water.

[16][17] The grade crossing elimination project saw the road be shifted just west of the former alignment in the area, and be depressed to pass underneath the tracks.