Bulgaria vs Sierra Leone: Population - Est. & Proj. — Urban population, per square kilometre

Bulgaria
0.048 1000 No per square kilometre
in 2023
Sierra Leone
0.0524 1000 No per square kilometre
in 2023
Bulgaria rank
98th
Sierra Leone rank
95th

Population - Est. & Proj. — Urban population, per square kilometre over time

  • Bulgaria
  • Sierra Leone
0.010.020.030.040.05196119922023

How they compare

Sierra Leone currently reports 0.0524 1000 No per square kilometre against 0.048 1000 No per square kilometre in Bulgaria, a difference of 0.0044 1000 No per square kilometre.

That makes Sierra Leone's figure about 1.1 times Bulgaria's.

The two have swapped places 1 time across 63 shared years of data; in 1961 it was Bulgaria ahead.

Bulgaria ranks 98th and Sierra Leone ranks 95th of 190 countries.

Across the 7 decades both report, Bulgaria averaged higher in 6 and Sierra Leone in 1.

Head to head by decade

Decade Bulgaria Sierra Leone Difference Ahead
1960s 0.0337 1000 No per square kilometre 0.007 1000 No per square kilometre 0.0267 1000 No per square kilometre Bulgaria
1970s 0.0448 1000 No per square kilometre 0.0112 1000 No per square kilometre 0.0336 1000 No per square kilometre Bulgaria
1980s 0.0519 1000 No per square kilometre 0.0166 1000 No per square kilometre 0.0353 1000 No per square kilometre Bulgaria
1990s 0.0516 1000 No per square kilometre 0.0206 1000 No per square kilometre 0.031 1000 No per square kilometre Bulgaria
2000s 0.0498 1000 No per square kilometre 0.0281 1000 No per square kilometre 0.0217 1000 No per square kilometre Bulgaria
2010s 0.0489 1000 No per square kilometre 0.0404 1000 No per square kilometre 0.0085 1000 No per square kilometre Bulgaria
2020s 0.0482 1000 No per square kilometre 0.0501 1000 No per square kilometre 0.0019 1000 No per square kilometre Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population - est. & proj. — urban population, per square kilometre, Bulgaria or Sierra Leone?
Sierra Leone, at 0.0524 1000 No per square kilometre against 0.048 1000 No per square kilometre in Bulgaria as of 2023.
What is the difference in population - est. & proj. — urban population, per square kilometre between Bulgaria and Sierra Leone?
0.0044 1000 No per square kilometre, with Sierra Leone ahead.
How many years of comparable data are there for Bulgaria and Sierra Leone?
63 years are reported by both, from 1961 to 2023.
How do Bulgaria and Sierra Leone rank globally for population - est. & proj. — urban population, per square kilometre?
Bulgaria ranks 98th and Sierra Leone ranks 95th of 190 countries.
Where does this data come from?
Statizoid (derived), published as Population - Est. & Proj. — Urban population, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Sierra Leone: Population - Est. & Proj. — Urban population, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 02 September 2026, from https://labour.statizoid.com/compare/population-est-and-proj-urban-population-per-square-kilometre/bulgaria/sierra-leone/

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About this data

Indicator
Population - Est. & Proj. — Urban population, per square kilometre
Unit
1000 No per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 11,029 data points, 1961–2023
Last refreshed

Population - Est. & Proj. — Urban population divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.