Waldron, or Waldron Island, is an unincorporated community in San Juan County, Washington, United States. Although Waldron is not specifically tracked by the Census, the ZIP code is 98297, and this ZIP code is coextensive with Waldron Island. Neither Waldron nor Waldron Island can be considered an official name; locally, they are used interchangeably, although the post office name is Waldron.
The population was 104 at the 2000 census.
Waldron is in the San Juan Islands, but has no connections with the tourist industry and has a low cost of living. As of 1995[update] it is designated as a Limited Development District and commercial recreation facilities are prohibited. There is no ferry service, only one, county-owned dock, and no electricity or water supply.