ZIP Codes in Clermont County with Associated Cities & Towns. Clermont County, OH - Standard ZIP Codes. 45102 | 45103 | 45106 | 45107 | 45118 | 45120 | 45121 | 45122 | 45130 | 45140 | 45150 | 45153 | 45157 | 45160 | 45162 | 45176 | 45244 | 45245 | 45255.