Krumovgrad Municipality is a municipality in Kardzhali Province, Bulgaria. The administrative centre is Krumovgrad.

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following:

Religious composition of Krumovgrad Municipality Orthodox Christianity   12.8% Catholicism   0.1% Protestantism   0.1% Islam   77.7% No religion   2.4% Prefer not to answer, others and indefinable   6.9%