Washington is 31% more expensive than Henderson.
When comparing Washington, DC and Henderson, NV, the overall cost of living indices are 171 and 131 respectively (national median = 100). Rent is $150/month cheaper in Henderson, saving renters about $1,800/year.
Median household income is $17,633/year higher in Washington. Home values also differ significantly — the median in Washington is $724,600 compared to $465,000 in Henderson.
Nevada has no state income tax, giving Henderson residents a significant tax advantage over District of Columbia's 10.75% rate.
Washington vs Henderson — common questions
Other cost of living comparisons for Washington and Henderson