Puerto Rico Highway 820 (PR-820) is an east–west road between the municipalities of Toa Alta and Vega Alta in Puerto Rico.

[4] Puerto Rico Highway 820 is a rural road with a single lane per direction along its entire length.

In Vega Alta, PR-820 has a short length from the Toa Alta municipal limit until its western terminus at PR-677 and PR-678 intersection.

The entire length in Toa Alta is located in Río Lajas barrio,[5] while in Vega Alta it is located entirely in Maricao barrio.

This Puerto Rico road-related article is a stub.