Analyzing household financial security is closely related to the formation and analysis of financial resources and their allocation. This study aims to analyze the financial security of households in the Russian Arctic regions at the micro level. Key objectives include exploring various approaches to defining and evaluating household financial security, developing a system of coefficients to measure this security, applying it to Arctic regions over time, and identifying common risks and threats to household financial security in these regions. The study synthesizes existing research on household financial security, providing a comprehensive perspective on its definition and assessment. Household financial security is assessed from two angles: first, by evaluating an individual household's financial resources and its ability to cover current expenses, save, and withstand unexpected financial shocks; second, by considering its role in regional financial stability and socio-economic development. For a thorough analysis, the study proposes categorizing financial security into manageable and unmanageable levels. Results from applying the developed coefficients reveal a disparity among Arctic regions: three regions exhibit high financial security, two regions face critical levels of insecurity, and the remaining regions fall into the average category. The study identifies key threats to financial security in each region, with low purchasing power being a common problem for all regions. The study finds that households prioritize securing their financial stability before investing their financial resources into regional development, underscoring the need for ongoing monitoring of financial conditions. The role of government in supporting household financial security is also emphasized. The practical significance of this study lies in its potential to inform the development and adjustment of regional socio-economic programs based on the findings.