Violent crimes, encompassing banditry, kidnapping, and communal clashes, pose a severe threat to human security and socio-economic stability in Niger State, Nigeria. This study assessed the perceived impact of these violent crimes on human security, examining their prevalence, patterns, and implications for economic stability, displacement, and governance. Adopting a cross-sectional survey design, the study utilized a mixed-methods approach, drawing quantitative data from 378 respondents selected via multistage sampling techniques, alongside qualitative insights from key informants. Quantitative data were analyzed using descriptive statistics, while qualitative data underwent thematic content analysis. The findings revealed a high prevalence of insecurity, with 54.7% of respondents reporting that violent crimes occur frequently ("often" or "very often"). Regarding the impact on human security, the quantitative results indicated that economic and social disruptions (21.2%), internal displacement (18.5%), and loss of lives and properties (15.9%) were the most severe consequences, followed by human rights abuses by security forces (13.2%) and food insecurity (10.6%). Furthermore, while increased police patrols (34.9%) and military deployments (26.7%) were identified as the primary government security policies, public perception of their effectiveness was poor, with only 34.1% of respondents rating them as effective and 34.7% deeming them ineffective. The study concludes that current security measures are largely reactive and fail to address the root socio-economic drivers of violence. Consequently, it recommends increased funding for the judiciary and law enforcement agencies to ensure swift prosecution, enhanced federal-state synergy, and comprehensive socio-economic interventions targeting poverty and unemployment to dismantle criminal recruitment pipelines.