More than 200 parents, children, staff and members of the local community turned out at Skerton High School last night, Thursday, to express their concerns at proposals to close the school.
County council chiefs are currently consulting on plans to close the school, which has just 200 pupils on roll.
They say it is not viable due to falling numbers and grades.
But parents – joined by MP David Morris – said they will not give up without a fight, and plan to take their message to Downing Street.
More than 2,000 people have so far signed petitions against the closure.
Robyn Holtham, chair of the Parents’ Action Group, said: “This is without a shadow of a doubt the best school I have set foot in.
“It has done wonders for my son and I will take this fight as far as I have to.”
Skerton East councillor and Skerton High governor Janet Hall said: “It has been staggering how much support there is for this school and how strongly people feel about it.
“It’s important that we stand up and be counted so that the county council hear what we have to say.”
Mr Morris vowed to take the views to parliament.
“On my watch this school is not going to close,” he said.
A school choir sang at the public meeting and it is hoped they will join parents in taking their petitions to Downing Street later this month.
Parents also plan to protest outside County Hall in Preston next Thursday, when the issue will be discussed at a county council meeting.
The consultation is due to end on October 25 and petitions and consultation forms can be completed until that date.