Arlington is 17% more expensive than Alexandria.
When comparing Arlington, VA and Alexandria, VA, the overall cost of living indices are 203 and 173 respectively (national median = 100). Rent is $244/month cheaper in Alexandria, saving renters about $2,928/year.
Median household income is $26,522/year higher in Arlington. Home values also differ significantly — the median in Arlington is $864,800 compared to $696,800 in Alexandria.
Both cities share the same state tax structure since they are in Virginia.
Arlington vs Alexandria — common questions
Other cost of living comparisons for Arlington and Alexandria