The Alzheimer's Society initiative 'Dementia Friends', supported by Lincolnshire County Council are calling for more volunteers.
Currently 99 Lincolnshire residents have registered to become Dementia Friends Champions but this compares with 192 in Nottinghamshire and 138 in Leicestershire.
Champions then recruit Friends who are asked to 'make a pledge' to do something practical to help people living with dementia in their local area.
Councillor Mrs Patricia Bradwell, Executive Councillor for Adult Care and Health Services, said: “In Lincolnshire, it's estimated that 10,502 people are currently living with dementia, with that number expected to reach 15,047 by 2021.
“However, the reality is that a lack of understanding about the symptoms means there could be many more.
"That's why Lincolnshire really needs to become a national leader in raising awareness and support among communities.
“Early diagnosis, treatment and numerous ways of helping people live positively with dementia can lead to better quality of life and prolonged independence."
Sabrina Falgate of Lincoln is one of the county's 99 Dementia Champions and said: "I became a Dementia Champion partly because I have family members living with dementia and partly because it's relevant to my role at work.
"I'd really encourage people to get involved – it's simple, rewarding and works around your time commitments, ranging from simply sharing messages via social media to running sessions in the community or workplace."
For further information about becoming a Dementia Friend or Champion, details of upcoming training sessions and insightful videos, visit www.dementiafriends.org.uk and www.lincolnshire.gov.uk/dementia.