Dallas and Arlington have a similar cost of living.
When comparing Dallas, TX and Arlington, TX, the overall cost of living indices are 97 and 95 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $5,759/year higher in Arlington. Home values also differ significantly — the median in Dallas is $295,300 compared to $276,400 in Arlington.
Both cities share the same state tax structure since they are in Texas.
Dallas vs Arlington — common questions
Other cost of living comparisons for Dallas and Arlington