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The Cygnus X complex is covered by the Global View of Star Formation in theMilky Way (GLOSTAR) survey, an unbiased radio-wavelength Galactic plane survey,in 4--8 GHz continuum radiation and several spectral lines. The GLOSTAR surveyobserved the 6.7~GHz transition of methanol (CH$_3$OH), an exclusive tracer ofhigh-mass young stellar objects. Using the Very Large Array in both the B and Dconfigurations, we observed an area in Cygnus~X of $7^{\rm o}\times3^{\rm o}$in size and simultaneously covered the methanol line and the continuum,allowing cross-registration. We detected thirteen sources with Class~IImethanol maser emission and one source with methanol absorption. Two methanolmaser sources are newly detected; in addition, we found four new velocitycomponents associated with known masers. Five masers are concentrated in theDR21 ridge and W75N. We determined the characteristics of the detected masersand investigated the association with infrared, (sub)millimeter, and radiocontinuum emission. All maser sources are associated with (sub)millimeter dustcontinuum emission, which is consistent with the picture of masers tracingregions in an active stage of star formation. On the other hand, only fivemasers ($38\pm17\%$) have radio continuum counterparts seen with GLOSTAR within$\sim$1$''$, testifying to their youth. Comparing the distributions of thebolometric luminosity and the luminosity-to-mass ratio of cores that host6.7~GHz methanol masers with those of the full core population, we identifiedlower limits $L_{\rm Bol}\sim200~L_\odot$ and $L_{\rm Bol}/M_{\rmcore}\sim1~L_\odot~M^{-1}_\odot$ for a dust source to host maser emission.

A global view on star formation: The GLOSTAR Galactic plane survey III. 6.7 GHz methanol maser survey in Cygnus X