Plasticizer composition and resin composition including the same

A plasticizer composition comprising:

• a cyclohexane-1,4-diester-based substance of the following Chemical Formula 1;
• an epoxidized alkyl ester composition comprising one or more compounds of the following Chemical Formula 2;
• and
• a citrate-based substance of the following Chemical Formula 3:
• wherein in Chemical Formula 1 to Chemical Formula 3:
• R1 and R2 each independently are a C8 alkyl group;
• R3 is a C8 to C20 alkyl group comprising one or more epoxy groups;
• and
• R4 to R7 each independently are a C4 to C10 alkyl group, and
• wherein the sum of the number of carbon atoms of the alkyl group of R4 and the average number of carbon atoms of the alkyl groups of R5 to R7 ranges from 10 to 15, and
• wherein the plasticizer composition comprises, with respect to a total weight thereof:
• 10 to 90 wt % of the cyclohexane-1,4-diester-based substance;
• 5 to 70 wt % of the epoxidized alkyl ester composition;
• and
• 5 to 70 wt % of the citrate-based substance.