| Location |
| A West-East road on the West side of the county in Gates |
| Boundaries |
| West: Interstate 490 |
| East: Erie Canal near Interstate 390 |
| Length |
| 3.5 miles |
Route 204 is a fairly short connecting route that begins as the Airport Expressway but quickly diverts onto parts of Chili Avenue/Route 33A and Brooks Avenue. Currently it is notable for providing enhanced access from the West to the Greater Rochester International Airport, as well as Wegmans warehouses/headquarters.
Major intersections include Beahan Road and Howard Road.
For business listings along Route 204 see the detailed listings for Chili Avenue or Brooks Avenue.
