The dataset accompanies manuscript: "Monitoring off-host winter tick abundance on traditional moose hunting lands". It is a single table that includes counts of winter tick (Dermacentor albipictus) obtained by a modified flagging technique developed by the Penobscot Nation. The table includes both detection and site covariates used for the data analyses presented in the paper. Data were collected by the University of Massachusetts student Juliana Berube at 20 sites in west and central Massachusetts, USA (WCM), and 11 sites in the White Mountain National Forest and Umbegog National Wildlife Refuge in New Hampshire, USA (WMU). Data were collected from 6 September 2022 – 4 December 2022.