The first figures have been released showing how many over-50s have taken up the jab in York and North Yorkshire.
The numbers are based on provisional data from NHS England for vaccinations up to November 28. They use population figures from the Office for National Statistics, which are the best publicly available official estimates.
In North Yorkshire, the figures range from 54% in Ryedale up to 68% in Craven.
Over-50s who have had the booster jab
The list shows the number of people aged 50 and over resident in the local authority who have received an extra dose; and the estimated percentage of people aged 50 and over resident in the local authority who have received an extra dose.
Nationally, the lowest take-up is in the London borough of Tower Hamlets, where only 34.6% of over-50s are estimated to have had either a booster or third dose.
By contrast more than three-quarters of over-50s in Stratford-upon-Avon (76.3%) and Hart in Hampshire (75.4%) are likely to have received the jab.
For England as a whole, take-up of extra doses among all over-50s stood at 60.2% on November 28.
The Government has said all eligible adults in England aged 18 and over will be offered a booster dose by the end of January.
The time between a second dose and a booster is being reduced from six months to three.