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Contact the Office for National Statistics

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If you have an enquiry, contact details are as follows:


If your enquiry is about ONS statistics, please email

Please include a contact telephone number, as this will ensure that we can contact you if we need to clarify any aspect of your enquiry.

Some data may not be in a format that can be easily emailed, so it may sometimes be useful to include a return postal address or fax number.

Email enquiries are handled in accordance with the Freedom of Information Act 2000.

If your enquiry is about Census, please email 


General and statistical enquiries

0845 601 3034 / 0203 684 5069

+44 (0) 1633 817521 (Overseas)

Minicom (for the deaf or hearing impaired) - +44 (0) 1633 815044

Fax - +44 (0) 1633 652747

Our standard opening times are 9am to 5pm, Monday to Friday (excluding UK Public and Bank Holidays).

Please note - Calls may be monitored for training purposes.


Customer Contact Centre
Office for National Statistics
Room D265
Government Buildings
Cardiff Road
South Wales
NP10 8XG

We aim to answer your enquiry within ten working days. However, the more specific and precise your enquiry, the quicker we hope to be able to answer it.

Customer Contact Centre - Opening Times Christmas and New Year 2014-15

Please note the following opening times for the Customer Contact Centre:

Week commencing Monday 22 December 2014
Monday 22
Tuesday 23
Wednesday 24
Thursday 25
Friday 26
normal service, 9am to 5pm
normal service, 9am to 5pm
9am to 2pm
Week commencing Monday 29 December 2014
Monday 29
Tuesday 30
Wednesday 31
Thursday 1 January
Friday 2 January
normal service, 9am to 5pm
normal service, 9am to 5pm
9am to 2pm
normal service, 9am to 5pm

While the office is closed, please email enquiries to We will respond to your enquiry as soon as possible after our return to work.


Social surveys

If you want to talk about an ONS survey that someone in your household has been asked to take part in, please call the freephone Survey Enquiry Line:

0800 298 5313

(Minicom users should dial 18001 before this number)

The Survey Enquiry Line is open 9am to 9pm on Monday to Thursday, 9am to 8pm on Friday and 9am to 1pm on Saturday.

Business surveys

If you have received an ONS business survey and are unable to find the information you need on the 'General information about ONS business surveys' or 'A-Z of business survey' pages, please email  including a contact telephone number, in case we need to clarify any aspect of your enquiry.

Do not use this email address to provide data. ONS policy is to maintain the confidentiality of all data sent to us and presently we are unable to guarantee email as a secure medium. Please return data by using the fax number on the front of the survey or by post to: 

Office for National Statistics
Room A012
Government Buildings
Cardiff Road
South Wales
NP10 8XG

Media enquiries

Please call + 44 (0) 845 604 1858 / +44 (0) 203 684 5070 or email

Welsh enquiries

Croesawn ohebiaeth yn y Gymraeg. We welcome correspondence in Welsh.

Report Fraud

You can report any suspicion of fraud relating to ONS by calling the customer contact centre on 0845 601 3034 / 0203 684 5069.
Additionally, you can write to:
The Departmental Fraud Officer,
Finance Division,
Cardiff Road,
NP10 8XG.

Or contact us by email on:

You should report fraud if you:

  • have knowledge of a person(s) you know or reasonably believe is involved in fraudulent activity against or that impacts upon ONS

  • have been told by another person of a fraud being committed against ONS

  • have evidence of fraud against ONS

  • believe you have evidence or knowledge of fraud, or suspect fraud against ONS, but are unsure and would like to talk to someone in confidence about it.

ONS office location maps

ONS Office Location Maps


If you have a comment about the design or working of this website, or find any broken links, please email

If you have an enquiry about the registration of births, marriages, deaths or any other certificate services, please visit the General Register Office.


Content from the Office for National Statistics.
© Crown Copyright applies unless otherwise stated.