<p>Calcined clays are commonly considered good precursors in the production of geopolymers, which have a low carbon footprint with enhanced mechanical and durability properties. Therefore, the aim of this study was to investigate the reactivity and geopolymerization potentials of locally available clays from different clay deposits. Four Nigerian kaolin clays, namely Ikere clay (TIK), Isan clay (TIS), Abusoro clay (TAB) and Odigbo clay (TOD) were studied. They were characterized to determine their suitability for geopolymer production. The clays were mixed with 6&#xa0;M and 8&#xa0;M NaOH and Na₂SiO₃ solutions to produce geopolymer binders. The binders were characterized using setting time, compressive strength, nitrogen adsorption analysis, FTIR, XRD and SEM/EDX. Results showed that the geopolymerization reaction was higher in TIK and TIS clays than in TAB and TOD clays. The TAB and TOD-based geopolymer binders exhibited the highest compressive strength of about 35&#xa0;MPa with 8&#xa0;M NaOH/Na₂SiO₃ solution compared to the TIK and TIS-based geopolymers. The adsorption and desorption isotherms of the geopolymer binders exhibited a Type IV isotherm and H3 hysteresis loop, suggesting mesopores as the major pores. Geopolymers with diffuse halos in the range of 20^o-30^o in TIK and TIS-based geopolymers and small halos in the range of 25^o-30^o for TAB and TOD-based geopolymers confirmed amorphous to semi-crystalline phases in the binders. The results indicate that the four clays are suitable for geopolymer production, which can be used for various applications.</p>