POPULATION BY NATIONALITY
Watford

The population figure shown for your area are an estimate provided by the Office for National Statistics and is rounded to the nearest 1,000.

The estimates are derived from the Annual Population Survey (APS) which is the Labour Force Survey (LFS) plus various sample boosts.

The Labour Force Survey (LFS) is a household survey of people in the UK. It includes those deemed resident at private addresses, so covers students in halls of residence with parents resident in the UK. However, it does not cover most communal establishments. Its purpose is to provide information on the UK labour market but it includes data on a variety of other variables such as country of birth and nationality.

The Annual Population Survey (APS) combines results from the LFS and the English, Welsh and Scottish Labour Force Survey boosts. These boosts increase the size of the sample. During 2004 and 2005 the APS also comprised of an additional boost for England.

Each quarter’s LFS sample of 40,000 households is made up from five “waves”, each of approximately 8,000 households. Each wave is interviewed in five successive quarters, such that in any one quarter, one wave will be receiving their first interview, one wave their second and so on, with one wave receiving their fifth and final interview. Thus there is an 80 per cent overlap in the samples for each successive quarter and the sample is completely different after six quarters.

In some areas of the UK the boost makes up the bulk of the APS dataset, with a smaller contribution from the main LFS. The boost has a four year wave structure instead of the five quarter wave structure in the main LFS; after the initial interview, sampled households are interviewed three more times on an annual basis. Therefore the boost for these areas may be slower to react to a change in migration patterns than the main LFS and the speed with which the APS sample responds to changes in the household population may vary across the UK.

More robust estimates are available by using the APS than from the main LFS. APS datasets are produced quarterly with each dataset containing 12 months of data. There are approximately 300,000 persons per dataset.

Where a respondent has dual nationality, the first one is recorded.

United Kingdom nationality includes the following overseas territories

• Anguilla
• Bermuda
• British Indian Ocean Territory
• British Virgin Islands
• Cayman Islands
• Falkland Islands
• Gibraltar
• Montserrat
• Pitcairn, Henderson, Ducie and Oeno Islands
• South Georgia and the South Sandwich Islands
• St Helena
• Turks and Caicos Islands

The European Union includes the following countries

• Austria
• Belgium
• Bulgaria (from 2007)
• Croatia (from 2013)
• Cyprus (from 2004)
• Czechia (from 2004)
• Denmark
• Estonia (from 2004)
• Finland
• France
• France
• Germany
• Greece
• Hungary (from 2004)
• Ireland
• Italy
• Latvia (from 2004)
• Lithuania (from 2004)
• Luxenbourg
• Malta (from 2004)
• Netherlands
• Poland (from 2004)
• Portugal
• Romania (from 2007)
• Slovakia (from 2004)
• Spain
• Sweden

Denmark includes Faroe Islands and Greenland

Finland includes Aland Islands

France includes French Guiana, French Southern Territories, Guadeloupe, Martinique, Mayotte, Reunion and St Martin, French Polynesia, New Caledonia, St Pierre and Miquelon and Wallis and Futuna

Norway includes Bouvet Island, Svalbard and Jan Mayen

Spain includes Canary Islands

These are all of the countries within Europe that are not the UK or within the European Union

Australia includes Christmas Island, Cocos (Keeling) Islands, Heard Island and McDonald Islands and Norfolk Island

New Zealand includes Cook Islands, Niue and Tokelau

China includes Hong Kong and Macao

United States of America includes American Samoa, Guam, Northern Mariana Islands, United States Minor Outlying Islands, Puerto Rico and United States Virgin Islands