More than half of the referrals came from primary schools, where children are under the age of 11, the figures showed.
Overall the number of referrals to CAMHS from schools has steadily increased each year since 2014/15, reaching 34,757 in 2017/18 - the equivalent of 183 every school day.
In this context, "education settings" encompasses local authority maintained schools, academies, nurseries, independent schools and providers, and pupil referral units.
Furthermore, 18 per cent of referrals for children were declined specialist CAMHS treatment in the region.
The total number of referrals for the years since 2014 - all of which run from April 1 to March 31 - was 1,069. The NSPCC said it expected the number to be much higher as someof the trusts did not provide information for all four years.
They said: "As a trust, we have developed our referral processes to make it easy and simple for schools and other professionals to refer to our specialist children's services".
The message is to recognise Mental Health Awareness Week during the industry's Radio Audio Week.
If we want to break the silence around mental health struggles, it would begin with managers communicating that it is okay to talk about it.
A government spokeswoman said it was investing an additional £300m to provide quicker support to children.
The number of referrals to mental health services in Herts and Cambs is on the rise.
She said the county's CAMHS service did deliver a good service but that waiting lists were too long and by the time children were seen many were at 'crisis point'.
"We are also asking for well-being days to be provided to public sector workers as part of reducing the pressure on those who work hardest to look after us".
The minute is supported by the Royal Foundation's Heads Together campaign which launched in 2016 to change the national conversation on mental health and tackle the stigma that prevents people from getting the help they need.
"Our counsellors are literally saving lives, and it concerns us that we can not help every child who desperately needs us".
The study is included in a new report by the Mental Health Foundation published today - Stress - Are We Coping?
Almost three out of five (57 per cent) of those who said a colleague or employee had spoken to them about a mental health issue were "glad they could confide in me", but one in four admitted they felt uninformed, 21 per cent said they felt embarrassed and a further 17 per cent did not feel equipped to know what to do or say.
"Individually we need to understand what is causing us personal stress and learn how to respond most effectively".