World Population Density Chart by Countries

World Population Density Chart showing regional variations

It seems that life must be harsh in the northern hemisphere with the exception of western Europe and island nation Japan. Human must have migrated to warmer southern climates leading to higher densities in South east asia.

This is a list of countries ranked by human population density, and measured by the number of human inhabitants per square kilometre and per square mile. A complete list of nations can be found at this Source

Rank	Country/Region of special position	Population	Area (km2)	Area (sq mi)	Density (/km2)	Density (/sq mi)	Notes
	World (land only)	6,733,164,238	148,940,000	57,510,000	45.21	117.1	[1]
	World (with water)	6,733,164,238	510,072,000	196,940,000	13.20	34.2	[1]
1	Macau (China)	546,200	29.2	11.3	18,705	48,450	[2]
2	Monaco	32,000	1.95	0.75	16,410	42,500	[3]
3	Singapore	4,839,400	710.2	274.2	6,814	17,650	[4]
4	Hong Kong (China)	7,008,900	1,104	426	6,326	16,380	[5]
5	Gibraltar (UK)	31,000	6.8	2.6	5,119	13,260
6	Vatican City	826	0.44	0.17	1,877	4,860	[6]
7	Malta	413,609[7]	316	122	1,309	3,390
8	Bermuda (UK)	64,000	53	20	1,211	3,140
9	Bahrain	791,000[8]	720	280	1,099	2,850
10	Bangladesh	153,122,000	143,998	55,598	1,063	2,750	[9]
11	Maldives	292,000	298	115	981	2,540
12	Guernsey	65,726	78	30	842	2,180	[10]
13	Jersey	91,533	116	45	789	2,040	[11]
14	Palestinian territories	4,018,332	6,020	2,320	667	1,730
15	Republic of China (Taiwan)	22,894,384	35,980	13,890	636	1,650	[6]
16	Barbados	253,000	430	170	589	1,530
17	Saint-Martin (France)	33,102	53.2	20.5	622	1,610
18	Mauritius	1,252,000	2,040	790	614	1,590
19	Aruba (Netherlands)	101,000	193	75	561	1,450
20	Mayotte (France)	186,452	374	144	499	1,290	[12]
21	South Korea	48,456,369	99,538	38,432	487	1,260	[13]
22	Nauru	10,000	21	8.1	481	1,250
23	San Marino	30,000	61	24	461	1,190
24	Puerto Rico (US)	3,954,584	8,875	3,427	496	1,280
25	Lebanon	4,082,000	10,452	4,036	404	1,050	[8]
26	Tuvalu	10,441	26	10	402	1,040
27	Netherlands	16,423,431	41,528	16,034	395	1,020	[14]
28	Martinique (France)	398,000	1,102	425	361	930
29	Israel	7,411,000	22,072	8,522	357	920
30	India	1,130,618,000	3,287,263	1,269,219	344	890

It is interesting to see that most of the countries with the highest population density are tiny island nations. Does this mean that life in these Island is good and facilitates higher densities of population?

The countries with deserts or extremely cold  climate have one of the lowest population densities (The last column of the bottom table)

220	Chad	9,748,931	1,284,000	496,000	7.6	20
221	Central African Republic	4,037,747	622,984	240,535	6.5	17
222	Kazakhstan	15,194,000	2,724,900	1,052,100	6.0	16
223	Niue (New Zealand)	2,000	260	100	6.0	16
224	Gabon	1,383,841	267,668	103,347	5.2	13
225	Guyana	751,218	214,969	83,000	3.5	9.1
226	Libya	5,853,452	1,759,540	679,360	3.3	8.5
227	Canada	33,271,000	9,984,670	3,855,100	3	7.8
228	Botswana	1,764,926	581,730	224,610	3.0	7.8
229	Mauritania	3,068,742	1,025,520	395,960	3.0	7.8
230	Iceland	309,672	103,000	40,000	3.0	7.8
231	Suriname	452,000	163,820	63,250	3	7.8
232	Australia	21,468,700	7,682,300	2,966,200	2.84	7.4
233	Namibia	2,031,252	824,292	318,261	2.5	6.5
234	French Guiana (France)	187,056	90,000	35,000	2.1	5.4
235	Mongolia	2,646,487	1,564,116	603,909	1.7	4.4
236	Western Sahara	440,000	266,000	103,000	1.3	3.4
237	Falkland Islands (UK)	3,140	12,173	4,700	0.26	0.67
238	Greenland (Denmark)	56,700	2,175,600	840,000	0.026	0.067	[27]

Two major land masses in the Northern Hemisphere, Russia and Canada with population density of 22/sq mile and 7.8/sq mile respectively.

213	Saudi Arabia	24,573,100	2,149,690	830,000	11.4	30
214	Niger	13,956,980	1,267,000	489,000	11.0	28
215	Mali	13,518,420	1,240,192	478,841	10.9	28
216	Turkmenistan	4,833,266	488,100	188,500	9.9	26
217	Russia	143,201,600	17,098,242	6,601,668	8.4	22
218	Bolivia	9,182,015	1,098,581	424,164	8.4	22
219	Oman	2,577,000	309,500	119,500	8.3	21
220	Chad	9,748,931	1,284,000	496,000	7.6	20
221	Central African Republic	4,037,747	622,984	240,535	6.5	17
222	Kazakhstan	15,194,000	2,724,900	1,052,100	6.0	16
223	Niue (New Zealand)	2,000	260	100	6.0	16
224	Gabon	1,383,841	267,668	103,347	5.2	13
225	Guyana	751,218	214,969	83,000	3.5	9.1
226	Libya	5,853,452	1,759,540	679,360	3.3	8.5
227	Canada	33,271,000	9,984,670	3,855,100	3	7.8
228	Botswana	1,764,926	581,730	224,610	3.0	7.8
229	Mauritania	3,068,742	1,025,520	395,960	3.0	7.8
230	Iceland	309,672	103,000	40,000	3.0	7.8

Availability of water seems to be one of the major factor in supporting higher human densities.