I am a lender here in Washington D.C and have helped many DC Urban Moms & Dads. There are three classifications of loan size. Conventional Conforming = $0 - $417K. Conventional High Balance = $417K - $625,500. Above $625,500 is considered Jumbo.
The interest rate difference between conforming and high balance is generally .125 - .250%. Jumbo rates are not necessarily higher but come with different rules and requirements.
If you'd like more information and detail, contact me at
roger.dennis@caliberhomeloans.com or (202) 904-9573.