State Road 804's western terminus is in unincorporated Boynton Beach at the intersection of US 441–SR 7, just north of the eastern boundary of the
Loxahatchee National Wildlife Refuge and the historic northern boundary of
The Everglades. West of US 441, Boynton Beach Boulevard continues westbound as 100th Street South for without a state road designation through several farms before terminating at a dead end. State Road 804 then heads east away from US 441 through local farms, with newer developments east of Lyons Road. The speed limit here, and on almost all of Boynton Beach Boulevard outside of the incorporated city, is . Two miles east of the western terminus, SR 804 has an interchange with
Florida's Turnpike. East of the turnpike, Boynton Beach Boulevard enters into some residential areas, intersecting Jog Road, followed by
Military Trail (formerly SR 809 and now CR 809), where soon afterwards, it has access to the Quail Ridge Country Club to the south. East of Knuth Road, Boynton Beach Boulevard enters incorporated Boynton Beach and becomes more commercial, with the
Boynton Beach Mall a few blocks to the north, and SR 804 intersecting with
Congress Avenue, which like Military Trail is a state-turned-county road. It continues east, now with a speed limit of , heading for an interchange with
Interstate 95 (I-95), entering downtown Boynton Beach east of the interchange, with the road ceasing to be a divided road east of NW 4th Street. Now with a speed limit of , the road next intersects Seacrest Boulevard, the baseline road that divides the city's east and west address, and continues east towards US 1. It crosses the
Florida East Coast Railway tracks that carry the
Brightline service, also passing the site of
a proposed Tri-Rail station south of the boulevard. At the intersection with US 1, SR 804 leaves Boynton Beach Boulevard proper for
US 1 (Federal Highway, and the hidden
SR 5), where it continues south for two blocks. SR 804 then turns left (east) and follows Ocean Avenue in downtown
Boynton Beach, along portions of the Ocean Avenue Historic District, with a speed limit of . The road also has access to the revitalized Boynton Harbor Marina to the north before crossing a drawbridge over the
Intracoastal Waterway to the eastern terminus at
SR A1A (Ocean Boulevard), which is just outside the Boynton Beach city limits in
Ocean Ridge, just south of Boynton Beach's Oceanfront Park and Boynton Beach's government offices. ==History== The original designation of Boynton Beach Boulevard was State Road 195. The 1945 State Road renumbering changed that designation to the current State Road 804. The road originally began as Boynton West Road at
State Road 7, about 1/2 mile south of the current western terminus, connecting the farms in that area to the town of Boynton Beach to the east. Boynton West Road headed east to Military Trail at the eastern end of a sugarcane field, where the road would follow Military Trail for 1/2 mile northbound, with the field to the west. The road would continue east, and then south to Boynton West Shellrock Road (now Old Boynton Road), where the road would head east to its original eastern terminus at
Dixie Highway (now Federal Highway,
US 1, and
SR 5) and NW 2nd Avenue. ==Major intersections==