The paper assesses labour market integration opportunities for the groups of country’s population that are highly contrasting in social terms, i.e. young people and older adults, and their dependence on demographic changes. Since the beginning of the 21st century up to 2050 in the future, demographic changes have demonstrated and will continue to have an increasing impact on the social and economic development of European countries. In this context, it is particularly appropriate to monitor the demographic prospects and labour market (...) situation of young people and older adults. These marginal social groups of economic activity are the best reflection of the overall labour market prospects of an individual country. The paper provides a detailed analysis of the situation in Lithuania. Transformations of the situation of young people and older adults in the Lithuanian labour market are closely linked to highly dynamic changes in demographic structures. Using a variety of labour market indicators, the paper identifies trends characterising the situation of the target groups at issue, with a particular emphasis on the observed changes in unemployment and employment (economic activity) during crisis periods. The results of the analysis help to highlight weaknesses and strengths of the labour market situation of the target groups. The strengths include the positive dynamism of most of the observed labour market indicators in Lithuania in the long term and the fact that the situation is, in many cases, relatively better than the average for EU countries. The weaknesses in the labour market situation of young people and older adults are related to the relatively higher vulnerability of these social groups during economic downturns; they appear to lose jobs faster and need longer time to find a suitable job during economic recoveries. (shrink)