The Port Ludlow Drainage District (PLDD) is a Jefferson County Special Purpose District that is tasked with resolving storm water drainage problems on common property within the North Bay area of Port Ludlow on the Olympic Peninsula in Washington State. The PLDD mission is to alleviate storm water conveyance problems on community property, such as the Ludlow Maintenance Commission greenbelts. There have been 18 Capital Improvement Projects undertaken and completed by PLDD that have contributed to the improvement of storm water flow within North Bay of Port Ludlow. These improvements have addressed community safety, preservation of property and water quality for the benefit of residents.

Maintenance of these project infrastructures is the ongoing responsibility and has become the main focus of PLDD. The District contracts with a professional maintenance crew which works year-round to ensure that the conveyance facilities are functioning as designed even in the rainiest of conditions.

The district is governed by a three-member board of commissioners which is elected by owner(s) of land located in the District who are qualified voters of the District.