Methods and systems for managing paging-channel resources, and in particular, dynamically adjusting the page-concatenation level based on PCO in a sector, are disclosed herein. An exemplary method involves (a) at an access network configured to page mobile stations via a paging channel of a sector in the access network, determining a paging channel occupancy (PCO) level for the sector; (b) using the determined PCO level as a basis for selecting a page-concatenation level to be used to page mobile stations in the sector, wherein the page-concatenation level is selected from a plurality of available page-concatenation levels; and (c) applying concatenation to pages to mobile stations in the sector according to the selected page-concatenation level.