Surface density of the CLASSIX galaxy clusters on the sky as a function of galactic latitude, |b_II|. The black histogram shows all clusters, while the red one shows clusters in the redshift range z = 0.−0.07 and the blue one clusters at z = 0.07−0.2. No clusters are detected closer than five degrees to the Galactic plane due to the restriction to the region with n_H ≤ 2.5 × 10²¹ cm⁻². The dotted line shows the boundary of the ZoA. Inside this boundary, we provide lower limits for the cluster density since the redshift survey is incomplete there.