The voter registration canvass is being completed to ensure residents are registered and eligible to vote in next year's elections.
Letters were distributed in July and September reminding residents of the importance of checking this information and to respond, even if the information stated is correct.
Now, only those who have not responded to the letters may receive a call at their home anytime until October 17 from a canvasser asking them to confirm the voter information is correct.
All canvassers will carry identification bearing the SKDC logo explaining their role to give peace of mind to residents of who the individual is making the enquiries at their home.
Beverly Agass, SKDC's Electoral Registration Officer, said the aim of the form is to ensure that the electoral register is up to date and to identify any residents who are not registered.
She said: "With elections taking place in our area in May 2017, it's important residents make sure they are registered and able to take part.
"For those who did not have chance to return letters earlier this year, a canvasser may call at your household to check your current registration details.
"However if you miss their call, you can still respond to the letter by returning the form in the pre-paid envelope provided, online, by telephone or by text.
"If you're not currently registered, you can go online to apply to register at www.gov.uk/register-to-vote"
It's particularly important that anyone who has moved address recently looks out for the form, or a call from a canvasser to ensure they are registered.
Any residents who have any questions on a canvasser calling or on the registration process can call the elections team at SKDC on 01476 40 60 80, email firstname.lastname@example.org