Municipal Bonds Market Yields | FMSbonds.com The tables and charts below provide yield rates for AAA, AA, and A rated municipal bonds in 10, 20 and 30 year maturity ranges. These rates reflect the approximate yield to maturity that an investor can earn in today's tax-free municipal bond market as of 05/02/2022. AAA RATED MUNI BONDS AA RATED MUNI BONDS A RATED MUNI BONDS