Objective. To describe the prevalence of anemia among patients undergoing chronic hemodialysis treatment in an altitude population (3200 m a.s.l.) in the Department of Junín (Peru). Methods. Observational, retrospective study. Data were taken from the National Dialysis Registry (RENDES, 2021) in the Department of Junín (Peru) and from the medical records of hemodialysis patients of the EsSalud Social Security in the year 2021. The sample population consisted of all patients who constituted the Chronic Hemodialysis Program of the Junín Region. Descriptive data were analyzed in Stata, version 17.0. Results. The prevalence of anemia was 3.9%. Only 5 patients had anemia associated with chronic kidney disease (CKD) (3.9%). Data were collected from 128 patients. 64.8% (n = 83) were male. The main cause of CKD was arterial hypertension (AHT) (37.5%), then type 2 diabetes mellitus (24.2%). Th...