{| class=wikitable style="text-align:right;"
|-
! colspan="5" | DENSITY OF POPULATION OF THE PRINCIPAL STATES
AND TERRITORIAL DIVISIONS OF THE WORLD.
|-
! States and Territorial
Divisions
! Census
Year
! Population
! Area,
English
sq. miles
! Population per
square mile
|-
| | Belgium ||1866 ||4,839,094 ||11,267 ||430
|-
| |England and Wales ||1861 ||20,066,224 ||58,320 ||347
|-
| |Saxony ||1867 ||2,423,586 ||6,777 ||346
|-
| |Netherlands ||1865 ||3,735,682 ||13,464 ||285
|-
| |China ||1812 ||367,632,907 ||1,297,999 ||283
|-
| |Gt. Britain and Ireland ||1861 ||29,321,288 ||119,924 ||253
|-
| |Würtemberg ||1867 ||1,778,479 ||7,675 ||234
|-
| |Italy ||1862 ||24,273,776 ||107,961 ||225
|-
| |Germany ||1867 ||38,514,046 ||206,511 ||186
|-
| |Ireland ||1861 ||5,798,967 ||31,874 ||181
|-
| |France ||1866 ||38,067,094 ||207,480 ||177
|-
| |Prussia ||1867 ||24,106,847 ||137,066 ||176
|-
| |British India ||1865-6 ||155,348,090 ||910,853 ||170
|-
| |Bavaria ||1867 ||4,824,421 ||29,347 ||166
|-
| |Switzerland ||1860 ||2,510,494 ||15,233 ||165
|-
| |Austria ||1869 ||35,943,592 ||227,234 ||158
|-
| |Denmark ||1870 ||1,783,565 ||14,553 ||110
|-
| |Scotland ||1861 ||3,062,294 ||30,685 ||101
|-
| |Portugal ||1865 ||3,987,867 ||36,510 ||99
|-
| |Spain ||1860 ||16,301,850 ||182,758 ||90
|-
| |Greece ||1861 ||1,332,508 ||19,941 ||66
|-
| |Turkey ||Estimate ||35,350,000 ||1,812,048 ||20
|-
| |Sweden and Norway ||1865-7 ||5,897,046 ||291,903 ||19
|-
| |United States ||1870 ||38,272,112 ||2,819,811 ||14
|-
| |Russia ||1858 ||73,920,000 ||7,210,374 ||10
|-
| |Mexico ||1857 ||7,995,426 ||1,030,442 ||7
|-
| |Persia ||Estimate ||4,400,000 ||648,000 ||6
|-
| |Brazil ||Estimate ||11,780,000 ||4,891,394 ||2
|}