Nearly 10,000 knives have been taken off the streets of Suffolk since the Bin a Blade campaign was launched in 2011.
Of the total number collected, 372 were left at the static bin in Kingsway, Mildenhall, with 98 of those deposited during the first half of this year.
Another three static bins are located in Bury St Edmunds, Ipswich and Lowestoft.
Suffolk Police chief constable Douglas Paxton said: “This is a campaign that I am excited about getting involved in and helping to continue in its success.
“Although across the county we do not have a high number of knife related crimes, it is important to remember that every blade binned makes Suffolk a safer place.
“I am impressed with the figures so far and urge anyone who carries a knife to deposit it in one of our four bins anonymously.”
The Bin a Blade campaign began with an initial year-long amnesty that saw 6,125 knives left anonymously in six bins, four static, two mobile, in 2011, and, following this success, the four static bins were made permanent.
Binned knives are shredded at Sackers Recycling in Great Blakenham.
Last year the bins were re-launched with a fresh new look by anti-knife campaigner Holly Watson, from Sudbury, whose brother was stabbed to death in September, 2009.
She has been campaigning against knife crime ever since and has won several awards including Suffolk Young Person of the Year.