1921 Census of England and Wales, County Report (Sample Report Title: Census 1921: England and Wales: Series of County Parts. County of Norfolk), Table 3 : " Population, Acreage, Private Families and Dwellings".

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Area in Statute Acres (Land and Inland Water)
[1]
Total Population
Private Families and Dwellings
1911
1921
Private Families
[7]
Population in Private Families
[8]
Structurally Separate Dwellings occupied
[9]
Rooms occupied
[10]
Rooms per Person
[11]
Persons
[2]
Persons
[3]
Males
[4]
Females
[5]
Persons per Acre
[6]
Hertfordshire AdmC Total   404,523 Show data context 311,284 Show data context 333,195 Show data context 155,724 Show data context 177,471 Show data context - 77,279 Show data context - 73,619 Show data context 398,607 Show data context -
Baldock UD Drill-down 362 Show data context 2,305 Show data context 2,477 Show data context 1,188 Show data context 1,289 Show data context - 629 Show data context - 621 Show data context 3,146 Show data context -
Barnet UD Drill-down 3,114 Show data context 11,335 Show data context 11,772 Show data context 5,186 Show data context 6,586 Show data context - 2,717 Show data context - 2,487 Show data context 13,946 Show data context -
Bishops Stortford UD Drill-down 3,371 Show data context 8,721 Show data context 8,858 Show data context 4,163 Show data context 4,695 Show data context - 2,013 Show data context - 1,967 Show data context 10,528 Show data context -
Bushey UD Drill-down 3,081 Show data context 6,978 Show data context 8,088 Show data context 3,767 Show data context 4,321 Show data context - 1,760 Show data context - 1,666 Show data context 9,577 Show data context -
Cheshunt UD Drill-down 8,479 Show data context 12,954 Show data context 13,628 Show data context 6,741 Show data context 6,887 Show data context - 3,198 Show data context - 2,943 Show data context 15,077 Show data context -
Chorleywood UD Drill-down 1,989 Show data context 1,947 Show data context 2,444 Show data context 1,012 Show data context 1,432 Show data context - 571 Show data context - 551 Show data context 3,440 Show data context -
East Barnet UD Drill-down 2,644 Show data context 12,381 Show data context 13,514 Show data context 6,121 Show data context 7,393 Show data context - 3,212 Show data context - 2,890 Show data context 17,390 Show data context -
Berkhamsted UD Drill-down 1,208 Show data context 7,302 Show data context 7,292 Show data context 3,354 Show data context 3,938 Show data context - 1,769 Show data context - 1,690 Show data context 9,576 Show data context -
Harpenden UD Drill-down 1,633 Show data context 6,172 Show data context 6,738 Show data context 2,903 Show data context 3,835 Show data context - 1,562 Show data context - 1,479 Show data context 8,846 Show data context -
Hemel Hempstead MB Drill-down 7,184 Show data context 12,888 Show data context 13,826 Show data context 6,513 Show data context 7,313 Show data context - 3,108 Show data context - 3,027 Show data context 16,158 Show data context -
Hertford MB Drill-down 1,501 Show data context 10,670 Show data context 10,702 Show data context 4,877 Show data context 5,825 Show data context - 2,448 Show data context - 2,343 Show data context 12,212 Show data context -
Hitchin UD Drill-down 3,675 Show data context 12,497 Show data context 13,525 Show data context 6,308 Show data context 7,217 Show data context - 3,212 Show data context - 3,079 Show data context 16,664 Show data context -
Hoddesdon UD Drill-down 1,576 Show data context 5,196 Show data context 5,409 Show data context 2,534 Show data context 2,875 Show data context - 1,311 Show data context - 1,265 Show data context 6,716 Show data context -
Letchworth UD Drill-down 3,652 Show data context 5,324 Show data context 10,302 Show data context 4,767 Show data context 5,535 Show data context - 2,497 Show data context - 2,332 Show data context 11,433 Show data context -
Rickmansworth UD Drill-down 2,790 Show data context 6,876 Show data context 7,515 Show data context 3,534 Show data context 3,981 Show data context - 1,736 Show data context - 1,646 Show data context 9,058 Show data context -
Royston UD Drill-down 1,003 Show data context 3,985 Show data context 3,826 Show data context 1,691 Show data context 2,135 Show data context - 950 Show data context - 927 Show data context 5,008 Show data context -
St Albans MB Drill-down 2,703 Show data context 24,120 Show data context 25,593 Show data context 11,407 Show data context 14,186 Show data context - 6,120 Show data context - 5,692 Show data context 32,008 Show data context -
Sawbridgeworth UD Drill-down 2,678 Show data context 2,304 Show data context 2,296 Show data context 1,125 Show data context 1,171 Show data context - 551 Show data context - 541 Show data context 2,953 Show data context -
Stevenage UD Drill-down 4,545 Show data context 4,856 Show data context 5,038 Show data context 2,355 Show data context 2,683 Show data context - 1,247 Show data context - 1,210 Show data context 6,486 Show data context -
Tring UD Drill-down 4,407 Show data context 4,481 Show data context 4,345 Show data context 2,016 Show data context 2,329 Show data context - 1,132 Show data context - 1,119 Show data context 5,784 Show data context -
Ware UD Drill-down 629 Show data context 5,842 Show data context 5,949 Show data context 2,820 Show data context 3,129 Show data context - 1,373 Show data context - 1,324 Show data context 6,550 Show data context -
Watford UD/MB Drill-down 2,238 Show data context 40,946 Show data context 45,922 Show data context 21,485 Show data context 24,437 Show data context - 10,894 Show data context - 9,944 Show data context 52,936 Show data context -
Ashwell RD Drill-down 22,049 Show data context 3,948 Show data context 3,605 Show data context 1,805 Show data context 1,800 Show data context - 989 Show data context - 986 Show data context 4,962 Show data context -
Barnet RD Drill-down 9,216 Show data context 4,074 Show data context 4,495 Show data context 2,020 Show data context 2,475 Show data context - 996 Show data context - 959 Show data context 5,320 Show data context -
Berkhamsted RD Drill-down 18,383 Show data context 4,707 Show data context 4,746 Show data context 2,225 Show data context 2,521 Show data context - 1,154 Show data context - 1,141 Show data context 5,903 Show data context -
Buntingford RD Drill-down 28,470 Show data context 5,019 Show data context 4,926 Show data context 2,488 Show data context 2,438 Show data context - 1,240 Show data context - 1,233 Show data context 6,503 Show data context -
Hadham RD Drill-down 25,468 Show data context 5,795 Show data context 5,537 Show data context 2,665 Show data context 2,872 Show data context - 1,393 Show data context - 1,387 Show data context 7,256 Show data context -
Hatfield RD Drill-down 23,486 Show data context 8,592 Show data context 9,072 Show data context 4,422 Show data context 4,650 Show data context - 2,047 Show data context - 2,008 Show data context 11,143 Show data context -
Hemel Hempstead RD Drill-down 19,994 Show data context 6,565 Show data context 6,858 Show data context 3,241 Show data context 3,617 Show data context - 1,704 Show data context - 1,664 Show data context 8,807 Show data context -
Hertford RD Drill-down 33,468 Show data context 7,372 Show data context 7,212 Show data context 3,565 Show data context 3,647 Show data context - 1,731 Show data context - 1,701 Show data context 9,499 Show data context -
Hitchin RD Drill-down 55,174 Show data context 12,539 Show data context 12,829 Show data context 6,221 Show data context 6,608 Show data context - 3,166 Show data context - 3,123 Show data context 16,462 Show data context -
St Albans RD Drill-down 37,066 Show data context 13,476 Show data context 14,533 Show data context 6,644 Show data context 7,889 Show data context - 2,758 Show data context - 2,700 Show data context 13,666 Show data context -
Ware RD Drill-down 33,953 Show data context 11,464 Show data context 11,419 Show data context 5,897 Show data context 5,522 Show data context - 2,519 Show data context - 2,500 Show data context 13,579 Show data context -
Watford RD Drill-down 26,854 Show data context 15,234 Show data context 16,283 Show data context 7,439 Show data context 8,844 Show data context - 2,970 Show data context - 2,879 Show data context 16,626 Show data context -
Welwyn RD Drill-down 6,480 Show data context 2,419 Show data context 2,621 Show data context 1,225 Show data context 1,396 Show data context - 602 Show data context - 595 Show data context 3,389 Show data context -

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Using data from this table, Vision of Britain can map the following rates for within Hertfordshire AdmC:

Rate Date
Population Density (Persons per Acre) 1921
Rate of Population Change (% over previous 10 years) 1921

This website does not try to provide an exact replica of the original printed census tables, which often had thousands of rows and far more columns than will fit on our web pages. Instead, we let you drill down from national totals to the most detailed data available. The column headings are those that appeared in the original printed report. The numbers presented here, which are the same ones we use to create statistical maps and graphs, come from the census table and have usually been carefully checked.

The system can only hold statistics for units listed in our administrative gazetteer, so some rows from the original table may be missing. Sometimes big low-level units, like urban parishes, were divided between more than one higher-level units, like Registration sub-Districts. This is why some pages will give a higher figure for a lower-level unit: it covers the whole of the lower-level unit, not just the part within the current higher-level unit.