Mark Bamforth's family has run a post office in the town for 44 years. Recently the number of offices there has dwindled from six to two, one of which is likely to be shut at the end of the consultation period.
According to Mark, the rally was a spontaneous display by local people. "The atmosphere was excellent. There were mothers with babies, pensioners on motability vehicles and people waving placards.
"The police asked me 'Who's organised this?' and I said nobody, it just happened. They had to close the road in the end."
Local MP Michael Jack spoke at the rally and nearly 200 townsfolk sent letters of support to the Post Office. They all got a reply - each one wrongly addressed.
Mark will learn his fate at the end of March.