Almost 100,000 people across the UK identify as Cornish in the latest census data.
Here in Cornwall, 80,000 people recorded a Cornish only identity, this is a rise of 9.9% from the last census in 2011.
A further 9,000 people (1.6%) selected Cornish in combination with one or more UK identities – up from 5,000 (1%) in 2011.
11,000 people (0.02% of usual residents) selected either a "Cornish" only identity or a "Cornish" identity in combination with "British" (an increase from 8,000 people, or 0.01%, in 2011.
The Office for National Statistics (ONS) said questionnaires were more user-friendly, easier to search and people could write in Cornish.
"The census provides a unique and comprehensive understanding of everyone's self-defined cultural identity, which in turn leads to a more accurate picture of the population," Census Deputy Director Jon Wroth-Smith said.
"Today's data highlights the increasingly multi-cultural society we live in. The percentage of people identifying their ethnic group as 'White: English, Welsh, Scottish, Northern Irish or British', continues to decrease.
"Whilst this remains the most common response to the ethnic group question, the number of people identifying with another ethnic group continues to increase."
Further analysis of the data is expected in the new year.
Outdoor activities and wintertime wellbeing to herald the new year at the Eden Project
St Petrocs launches Winter Appeal to light the way out of homelessness
Father Christmas pays special visit to community groups in Cornwall
Cornish Seal Sanctuary welcomes a new resident
Save Our Festive Traditions: Majority of people in the South West Want to Revive Lost Christmas Crafts
Cornwall and Isles of Scilly Welcome Year 4 Allocation of Shared Prosperity Funding
Community shines as Christmas lights are switched on in Treneere
Cornwall Resident Shares Life-Changing Experience as Participant in Ground-Breaking Diabetes Study
