Washington is 131% more expensive than Knoxville.
When comparing Washington, DC and Knoxville, TN, the overall cost of living indices are 171 and 74 respectively (national median = 100). Rent is $784/month cheaper in Knoxville, saving renters about $9,408/year.
Median household income is $55,293/year higher in Washington. Home values also differ significantly — the median in Washington is $724,600 compared to $214,000 in Knoxville.
Tennessee has no state income tax, giving Knoxville residents a significant tax advantage over District of Columbia's 10.75% rate.
Washington vs Knoxville — common questions
Other cost of living comparisons for Washington and Knoxville