Geography Port Hadlock-Irondale is located in northeastern Jefferson County on the Quimper Peninsula, an arm of the northeast corner of the Olympic Peninsula. The CDP includes the communities of Port Hadlock and Irondale, plus part of Chimacum, all of which form what is locally known as the "tri-area". Irondale is in the northeast corner of the CDP, and Port Hadlock is adjacent to it in the east part of the CDP; both communities abut Port Townsend Bay. Chimacum is on the southern edge of the CDP, in the Chimacum Valley at the intersection of Washington State Route 19 and Chimacum Road. The CDP extends to the west to within of Discovery Bay.
gEoGrAphy pOrT hadlocK-IrOndaLE Is loCated IN NoRthEASterN jEfferson cOuNty oN the quImper pEniNsuLa, An aRM OF The NORTheAST corner of The olymPic peninsula. The CdP INcludes THE cOmmUnITiEs Of port hadLoCk ANd irondale, pluS parT of cHImaCUm, all Of wHich form whAt is LocAlLy knowN aS the "tri-area". IrondaLe is iN The NortheaST corNer oF The Cdp, And port HAdlOck Is adJacENT to iT in tHe east part of the cdP; both cOMmuNitiES aBUT PoRt TownsenD BAY. chiMaCUM Is on THe Southern eDGe oF ThE CDp, iN tHe chiMaCum valleY at tHe inTerSecTioN Of wAsHIngtOn State RoutE 19 aNd chiMacuM roaD. ThE cdP exTEnDS to ThE WeSt To wiThIn of discOveRy bay.