Washington and Alexandria have a similar cost of living.
When comparing Washington, DC and Alexandria, VA, the overall cost of living indices are 171 and 173 respectively (national median = 100). Rent is $131/month cheaper in Washington, saving renters about $1,572/year.
Median household income is $7,351/year higher in Alexandria. Home values also differ significantly — the median in Washington is $724,600 compared to $696,800 in Alexandria.
Virginia has a lower income tax rate, making Alexandria slightly more tax-friendly.
Washington vs Alexandria — common questions
Other cost of living comparisons for Washington and Alexandria