Over recent years an issue of generational renewal in agriculture of the European Union is treated as a topical challenge. This talking-point is critical to uphold viable agriculture in the long run. The paper provides an analysis of the main criteria empowering the measurement of the scale of a generational renewal‘s problem and sets a baseline for the analysis of demographic viability of Lithuanian farmer and family farms. The research is based on the of results of the Agricultural Census of the Republic of Lithuania 2010. The paper analyses a situation of demographic viability of farmer and family farms by type of farming and economic size units, covers the issues of gender balance of farm holders and their family members, compares the nature of farmer and family farms‘ demographic viability in Lithuanian municipalities