This research was conducted to measure the extent of identification of poor households by Listahanan, a targeting system used to identify low-income households in Mauban, Quezon. The research measured the relationships between the extent of identification of poor households in terms of assessment, program management and validation, and the level of assurance in the data collected by the Department of Social Welfare and Development (DSWD), as perceived by 150 randomly sampled respondents. It also measured the relationship between the extent of identification and the level of Listahanan being used by the Local Government Unit (LGU). Quantitative questionnaires and in-person interviews were the main data gathering methods employed in this study. Personal interviews and an online survey were used to acquire the data in Mauban, Quezon. To address every question in this research, the researcher employed questionnaires that were created based on the statement of the problem. The researcher acquired the required information and data using the appropriate questionnaire to the studys goals. The researcher made sure that the respondents could understand the queries. A Tagalog version of the questionnaire was developed for the respondents who opted to answer the questions in Tagalog. In order to generate responses to the study questions, the researcher organized and examined the findings. Additionally, the researcher computed the mean and standard deviation using the Statistical Package for the Social Sciences (SPSS) for the gathered data. The results suggested that Listahanan provided a high level of assurance in the credibility. The Proxy Means Test (PMT) used by Listahanan was deemed an effective tool in identifying interviewed poor households, with no inclusion errors observed. Furthermore, Listahanan data is very useful in selecting beneficiaries for social protection programs and services as baseline data. It is very easy and fast to access, hence, through Listahanan, disadvantaged households were given priority in the governments programs and services for the poor. Likewise, the use of Listahanan data used a systematic process in identifying list of poor households and averted the claims that the list was politically influenced and that only their relatives and friends were often selected during selection process.