These tests are for people who do not have symptoms of coronavirus and cannot work from home.
The sites will open over the next week in Felixstowe, Martlesham, Mildenhall, Stowmarket and Sudbury, with further centres opening in Ipswich and Lowestoft.
It brings to 10 the total number of centres around the county using lateral flow testing to identify people who may have coronavirus but who do not have symptoms.
One in three people with coronavirus do not have symptoms so regular testing is vital in breaking the chain of infection and keeping Suffolk safe.
Suffolk County Council is also finalising with the government the opening of a further 16 smaller sites to serve rural communities.