The article embraces the thorough analysis of the social-economic space of Poltava Region via administrative-areal reform as well as united areal communities’ formation. Given research has its base in the methodology of spatial analysis of areal systems with different levels of their organization. As a result, the very essence of social-economic growth poles’ forming process was revealed in succession. The fact this growth poles’ formation on depressive territories tends to be the ultimate way to improve their social and economic status has been logically ascertained. The typification of Poltava Region unitedareal communities’ centres as social-economic growth poles was held according to such criteria as their formation and impact extension over the surrounding territory. Actually, the forming peculiarities and the further development of growth poles on the regional level have an urgent necessity under active administrative-areal reform. Therefore, the prerequisites and the forming factors of Poltava Region growth poles were clearly defined. As a result, all the groups’ types of regional social-economic centres, which are already formed social-economic development poles (Poltava, Kremenchuh), development poles under formation (Horishni Plavni, Myrhorod, Lubny, and Hadiach), centres with some prerequisites to transform into growth poles (Karlivka, Pyriatyn, Lokhvytsa, Zinkiv, Hlobyne, and Kobeliaky), and centres with insufficient capacity to transform into growth poles (Velyka Bahachka, Kozelshchyna, Mashivka,Novi Sanzhary, Opishnia, Reshetylivka, Semenivka, Chornukhy, and Shyshaky), have been classified correctly. Those centres that have low formation level, being unable to transform into growth pole (Bilotserkivka, Butenky, Velyki Sorochyntsi, Drabynivka, Zavorsklo, Zasullia, Klepachi, Kolomatske, Krasna Luka, Lanna, Mala Pereshchepyna, Machukhy, Mykhailivka, Nedoharky, Nekhvoroshcha, Novoavramivka, Novoznamianka, Obolon, Omelnyk, Petrivka-Romenska, Pishchane, Pokrovska Bahachka, Pryshyb, Rokyta, Rudenkivka, Sencha, Serhiivka, Skorokhodove, Tereshky, Shcherbani), consolidate into the specific pattern. The results of the research aim to provide the primary, administrative, and social-economic UAC centers’ functions. As a matter of fact, the fundamental prerequisite of the Poltava Region’ area sustainable social-economic development can be efficiently contributed by already formed poles. They are, in fact, able to maintain the conservation of regional ecosystems, the areas’ innovative development achievements, the overcome of poverty, the preservation of national values and traditions, etc. Only the transformation of the described centers or acquiring them the nuclei traits of social-economic development poles should ensure the balanced areal development of the region.