| January-20 | Zagreb, City Center | 11 tons | Large fatberg caused by the accumulation of cooking fats, oils, and wet wipes, blocking a major sewer line. |
| February-20 | Split, Bačvice | 9 tons | Fatberg found in a residential area, primarily composed of fats and oils from nearby restaurants. |
| March-20 | Rijeka, City Center | 13 tons | Significant fatberg discovered in a central district, causing major sewer blockages. |
| April-20 | Osijek, Gornji Grad | 7 tons | Smaller fatberg caused by improper waste disposal, leading to localized flooding. |
| May-20 | Zagreb, Maksimir | 10 tons | Fatberg found near a commercial area, primarily composed of fats, oils, and non-biodegradable items. |
| June-20 | Split, Meje | 8 tons | Smaller fatberg discovered in a residential district, composed mainly of organic waste and sanitary products. |
| July-20 | Rijeka, Trsat | 12 tons | Major fatberg found in a busy district, requiring extensive removal efforts to unblock the sewer system. |
| August-20 | Zagreb, Novi Zagreb | 9 tons | Fatberg caused by improper waste disposal, leading to significant sewer blockages. |
| September-20 | Split, Žnjan | 11 tons | Fatberg discovered near a residential area, primarily composed of fats and oils from households. |
| October-20 | Osijek, Retfala | 14 tons | Largest fatberg of the year, causing major disruptions in the sewer system of a residential district. |
| November-20 | Zagreb, Trešnjevka | 10 tons | Fatberg found near a historic site, primarily composed of fats, oils, and organic waste from nearby restaurants. |
| December-20 | Split, Marjan | 11 tons | Significant fatberg discovered in a residential area, caused by improper disposal of cooking fats. |
| January-21 | Rijeka, Sušak | 8 tons | Smaller fatberg discovered near a commercial district, composed mainly of household and commercial waste. |
| February-21 | Zagreb, Dubrava | 10 tons | Fatberg found in a residential area, causing localized flooding and sewer blockage. |
| March-21 | Split, Stobreč | 13 tons | Major fatberg discovered in a densely populated district, requiring significant removal efforts. |
| April-21 | Osijek, Jug II | 9 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer blockages. |
| May-21 | Zagreb, Podsused | 11 tons | Significant fatberg found near a commercial area, causing extensive sewer disruptions. |
| June-21 | Rijeka, Pećine | 12 tons | Fatberg discovered in a residential district, primarily composed of fats, oils, and non-biodegradable waste. |
| July-21 | Split, Varoš | 10 tons | Fatberg found near a university, caused by improper disposal of fats, oils, and sanitary products. |
| August-21 | Zagreb, Kustošija | 8 tons | Smaller fatberg discovered in a residential area, primarily composed of household waste. |
| September-21 | Osijek, Industrijska Četvrt | 14 tons | One of the largest fatbergs of the year, blocking a main sewer line in a commercial district. |
| October-21 | Split, Gripe | 11 tons | Fatberg discovered near a historic site, primarily composed of fats, oils, and non-biodegradable items. |
| November-21 | Rijeka, Kantrida | 10 tons | Fatberg caused by improper disposal of cooking fats, blocking a main sewer line in a residential area. |
| December-21 | Zagreb, Sesvete | 13 tons | Significant fatberg found in a residential district, causing major sewer blockages. |
| January-22 | Split, Poljud | 8 tons | Smaller fatberg discovered near a university, primarily composed of fats, oils, and sanitary products. |
| February-22 | Osijek, Tvrđa | 10 tons | Fatberg found in a residential area, caused by improper disposal of waste, leading to localized flooding. |
| March-22 | Zagreb, Dubec | 12 tons | Major fatberg discovered in a densely populated district, causing significant sewer disruptions. |
| April-22 | Rijeka, Bulevard | 9 tons | Fatberg found near a historic site, primarily composed of organic waste from nearby restaurants. |
| May-22 | Split, Firule | 13 tons | Fatberg discovered near a residential district, primarily composed of fats, oils, and non-biodegradable waste. |
| June-22 | Osijek, Donji Grad | 11 tons | Significant fatberg discovered in a commercial area, causing major sewer blockages. |
| July-22 | Zagreb, Dubrava | 14 tons | Fatberg discovered near a residential district, primarily composed of fats, oils, and sanitary products. |
| August-22 | Split, Kman | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer overflow. |
| September-22 | Rijeka, Kozala | 12 tons | Significant fatberg found near a commercial area, causing major sewer disruptions. |
| October-22 | Osijek, Jug I | 14 tons | Largest fatberg reported in late 2022, causing extensive sewer blockages in a busy district. |
| November-22 | Zagreb, Srednjaci | 10 tons | Fatberg discovered near a historic site, primarily composed of fats, oils, and non-biodegradable items. |
| December-22 | Split, Brodarica | 11 tons | Significant fatberg found in a residential area, caused by improper disposal of cooking fats and oils. |
| January-23 | Rijeka, Škurinje | 13 tons | Fatberg discovered near a commercial district, requiring extensive removal efforts to unblock the sewer system. |
| February-23 | Zagreb, Medveščak | 10 tons | Fatberg found near a residential area, primarily composed of household waste and non-biodegradable items. |
| March-23 | Osijek, Zeleno Polje | 11 tons | Major fatberg discovered in a residential area, causing localized flooding and sewer blockages. |
| April-23 | Split, Lokve | 13 tons | Fatberg caused by improper disposal of waste in a residential district, leading to extensive sewer damage. |
| May-23 | Rijeka, Podmurvice | 9 tons | Fatberg found near a luxury residential area, primarily composed of fats, oils, and sanitary products. |
| June-23 | Zagreb, Špansko | 12 tons | Significant fatberg discovered near a commercial area, causing major sewer blockages. |
| July-23 | Split, Sućidar | 14 tons | Fatberg found in a residential district, caused by improper disposal of fats and oils. |
| August-23 | Osijek, Vijenac Ivana Meštrovića | 10 tons | Fatberg discovered near a historic district, causing localized flooding and sewer overflow. |
| September-23 | Zagreb, Trnje | 13 tons | Significant fatberg found in a busy district, requiring extensive removal efforts. |
| October-23 | Split, Spinut | 14 tons | Major fatberg discovered near a university, causing extensive sewer disruptions. |
| November-23 | Rijeka, Vežica | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to sewer blockages. |
| December-23 | Zagreb, Vrapče | 12 tons | Significant fatberg found in a commercial district, primarily composed of fats, oils, and non-biodegradable items. |
| January-24 | Osijek, Mačkamama | 14 tons | Fatberg discovered near a historic district, causing extensive sewer blockages and minor flooding. |
| February-24 | Split, Kocunar | 10 tons | Fatberg caused by improper waste disposal practices in a residential area, leading to localized flooding. |
| March-24 | Rijeka, Pećine | 12 tons | Significant fatberg discovered near a commercial area, causing major sewer blockages. |
| April-24 | Zagreb, Kajzerica | 14 tons | Major fatberg discovered in a historic district, causing extensive sewer damage and traffic disruptions. |
| May-24 | Split, Visoka | 10 tons | Fatberg found near a commercial district, primarily composed of fats, oils, and sanitary products. |
| June-24 | Osijek, Industrijska Četvrt | 11 tons | Significant fatberg discovered in a residential area, causing major sewer disruptions. |
| July-24 | Rijeka, Drenova | 13 tons | Fatberg discovered near a historic district, primarily composed of fats, oils, and non-biodegradable items. |
| August-24 | Zagreb, Jarun | 10 tons | Fatberg caused by improper disposal of cooking fats, blocking a main sewer line in a residential area. |