6 months (26 weeks) is the maximum in the DMV.
Virginia:
http://www.vec.virginia.gov/faqs/general-unemployment-insurance-questions#a114
"Currently the maximum weekly benefit amount is $378 and the minimum is $60. Individuals must have earned at least $18,900.01 in two quarters during the base period to qualify for the maximum weekly benefit amount. Benefit duration varies from 12 to 26 weeks, also depending on wages earned in the base period."
Maryland:
https://dbm.maryland.gov/employees/Pages/DisApplyforUnemploymentBenefits.aspx
"Unemployment insurance benefits range from a weekly benefit amount (WBA) of $50 per week to a WBA of $430 per week. Your WBA is determined by your wages during your base period. Your claim is effective on the Sunday immediately prior to the date that you file for benefits, and remains in effect for one year. You can receive up to 26 weeks of total unemployment insurance benefits if you meet all the requirements of the Maryland Unemployment Insurance Law. During periods of extremely high unemployment, a special federally funded program may be in effect, which provides additional weeks of benefits."
DC:
https://does.dc.gov/service/unemployment-compensation-process
"1. The unemployment insurance (UI) maximum weekly benefit amount (MWBA) increased from $359 to $425 per week.
2. All claimants will receive 26 weeks of UI benefit payments."