The Census 2021 took place on Sunday 21st March.

It was the first digital Census, run predominantly online, with households receiving a letter with a unique access code, allowing them to complete the questionnaire on their computers, phones or tablets.

Why is the Census important?

The Census gives the most accurate estimate of all the people and households in England and Wales. The information you give helps decide how services are planned and funded in your local area. This could mean things like doctors' surgeries, housing or new bus routes. It asks questions about you and your household to build a picture of all of us. There's no other survey that gives as much information about our society and future needs. Charities also use census information to help get the funding they need. Businesses use it to decide where to set up, which creates job opportunities.

Visit for more information and any questions you have about the Census.

It is a legal obligation to complete the Census. If you don't, you could face prosecution, a fine of up to £1000 and a criminal record.


2011 Census results

The 2011 Census took place on 27 March 2011. In England and Wales, the 2011 Census was organised and carried out by the Office for National Statistics (ONS). 

A summary of the results for Brentwood is as follows:

  • The population estimate for Brentwood Borough was 73,600. This is an increase from the 2001 Census population of 68,426. 
  • To view the population of Brentwood Borough by five-year age band and see how this compares to other areas of the country you can visit the 2011 Census interactive web pages and select "Brentwood" from the list of areas. 
  • There were an estimated 30,600 occupied households in Brentwood Borough, compared to 28,767 in 2001.

More detail on all aspects of the Census can be found on the ONS 2011 Census web pages.