People in Scotland who have not yet returned their census will be visited to ensure everyone is counted.
Registrar General for Scotland Duncan Macniven has said that the country’s return rate is 70%.
Some 1.8m of the 2.5m questionnaires delivered have been sorted by Royal Mail or returned online.
Around 6000 census takers will explain questions to householders, offer advice, arrange translations and provide replacement questionnaires when they call to collect unreturned forms from Wednesday onwards.
Mr Macniven said, “Census questionnaire returns so far include more than 1.4 million by post and 380,000 online.
“Hundreds of thousands more are expected back over the next few days as people fill in details of their circumstances on census day, March 27.”
He added, “The 70% return rate is in line with our expectations, and it is a quick and positive response from householders who clearly understand that the census is important to make sure that Scotland and its communities are fairly represented when it comes to planning future services and allocating funding.
“It’s time now for others to chip in and have their say.”
Mr Macniven said, “Completing and returning the questionnaire is required by law, and anyone failing to do so could face a fine of up to £1000.”