- Franklin County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 96,749. The county seat and largest city is Pasco. The county was formed out of Whitman County on November 28, 1883, and is named for Benjamin Franklin.
And he that owneth the house shall come and tell the priest, saying, It seemeth to me there is as it were a plague in the house:
Leviticus 14:35 KJV
