Hefty bills and criminal records were handed to six litterers at Plymouth Magistrates Court on Monday.
The Council brought the cases before the court after fixed penalty notices for £100 went unpaid.
The court heard how each of the defendants had either been witnessed dropping litter or leaving it loose in services lanes in residential areas outside of waste collection days.
Five of the litterers failed to attend court and were found guilty in their absence. They were each ordered to pay fines of £220, costs of £200 and a victim surcharge of £34. The total of £454 must be paid within 28 days.
The other defendant presented at court and pleaded guilty. They were fined £80 and but must pay costs of £100 and a £34 victim surcharge. This amounted to a total of £214 - more than £100 more than the original fixed penalty notice.
Councillor Maddi Bridgeman, Cabinet member for the Environment and Street Scene, said: "I've said it hundreds and hundreds of times and I'll keep saying it until I'm blue in the face - littering will not be tolerated in Plymouth.
"We will continue to look for litter louts and we will continue to pursue them via fixed penalty notices and if necessary, through the courts until the small minority of people who think that it's acceptable understand and cease their selfish actions."