Everett and Seattle is all I can think of. It is around Boeing Field/King County Airport and Paine Field Airport.
The airport code for Miller Field - airport - is VTN.
The airport code for Buchanan Field Airport is CCR.
The airport code for Halliburton Field - airport - is DUC.
The airport code for Memorial Field Airport is HOT.
The airport code for Pryor Field Regional Airport is DCU.
The airport code for Brown Field Municipal Airport is SDM.
The airport code for Sloulin Field International Airport is ISN.
The airport code for Montgomery Field is MYF.
The airport code for Parlin Field is NWH.
The airport code for Weedon Field is EUF.
The airport code for Coulter Field is CFD.