The detailed consideration of lexical processes, structuring of lexical units, study of neologization processes, selection of functional types of neolexes, their classification and systematization provoke the active development of modern linguistics. The purpose of the work is to identify thematic subgroups of socio-political vocabulary, to find out the structural-semantic and functional features of the neolexes of the analyzed vocabulary in the mass media of Mykolayiv region. The object of the work is the vocabulary of the mass media of Mykolayiv region. The subject of research is socio-political vocabulary, neolexes in the mass media space of Mykolayiv region.To solve the above problems used methods of linguistic research, the choice of which depends on the purpose, objectives and collected factual material: the method of observation and the method of continuous sampling (to identify tokens related to the socio-political layer, innovations in publications and broadcasting); method of comparison (to determine the neological nature of the studied units and features of the mass media of Mykolayiv region at the all-Ukrainian level); descriptive (for inventory and classification of empirical material); component analysis (from the study of word semantics), comparable (during the analysis of socio-political vocabulary of the period 2015-2018). In the article the basic modern classifications of social and political vocabulary of language of mass media are considered, the thematic subgroups of tokens of the Nikolaev mass media are analyzed, features of the offered classification are established. Having analyzed the most important thematic subgroups that have been identified in the course of working with factual material, the following thematic subgroups function in the mass media space of Mykolayiv region: nomenclature names in the language of mass media; names of departments, bodies in the structure of the state administrative apparatus; names of political parties, movements, ideological currents and their members; tokens of the military sphere; name of social processes of disorganization of public life. The active use of the names of political parties, movements, ideological currents and their members is observed during the election campaign. In our opinion, due to the negative attitude of the society to the political activity of the majority of the representatives of the People’s Deputies of Ukraine, the affiliation of specific individuals to the respective parties has been silenced lately. But, of course, this subgroup of social and political vocabulary takes place and is actively reflected in the mass media, for example: poroshenkivci, election campaign, coalition government. Words that directly describe the life of society (spiritual life, cultural values, etc.) fully fill the pages of the media of various types, for example: patriotism, national symbols, street art, independence, unemployment, subsistence level. The nature of the information space is to respond quickly to what is happening in people's lives. That is why the vocabulary of the military thematic subgroup is most widely used, as the mass media reacts to the actual news worrying the Ukrainian society in general and Mykolayiv in particular. Other lexical spheres also actively function in mass media space of Mykolayiv region. Words to denote the most important political, economic, religious and other concepts form the basis for articles in newspapers and on the Internet.