Background. Cervical cancer is one of the major noncommunicable public health problems among the female population affecting not only the women but also the whole community. Annually, more than half a million new patients are diagnosed with it and over 270,000 deaths occur worldwide. There are very few research efforts conducted on prevalence and associated factors of specific target group in the region. So, this study tries to show the magnitude on all women screened for precervical cancer and serves as a secondary data for other research. Objective. The aim of the study was to assess magnitude of precervical cancer and associated factors among screened women in Arba Minch town and zuria woreda health institutions, southern Ethiopia. Methods. A facility based cross-sectional study was conducted in three health facilities at Arba Minch town and zuria woreda, southern Ethiopia, from June 2015 to June 2017. Data were collected by two nurses that are working in the area of expertise and one health officer as supervisor. Data of 528 screened clients were entered into Epi data version 3.1 using checklist, double data entry verification done and exported to SPSS version 20.0. After cleaning the data, descriptive analysis was done and multivariable logistic regression model was employed to identify predictors of precervical cancer. Finally, statistical significance was declared at P < 0.05. Result. In this study, the magnitude of precervical cancer is 27.7% [95%CI] (24.1-31.4)]. Having primary educational status (AOR [95% CI