| Source | UN (World Population Prospects 2024) |
| Date | 23 Dec 2024 |
As of 2024, the population of Guam is projected at 168k, compared to 167k in 2023. It is the tenth-most populous country in Oceania and ranks 192nd in the world. The population growth rate in 2024 is projected at 0.74 percent, the 123rd highest among 237 countries and dependent territories.
There are 85k males and 83k females in Guam. The percentage of the male population is 50.65%, compared to 49.35% of the female population. Guam has 2,199 more males than females. The sex ratio in Guam in 2024 will be 102.656 males per 100 females. Guam is in the 196th position in terms of the female-to-male ratio.
| Year | Population | Growth (%) | M per 100 F | ||
|---|---|---|---|---|---|
| Male | Female | Total | |||
| 1950 | 41,395 | 19,382 | 60,776 | 0.81 | 213.574 |
| 1955 | 40,648 | 23,430 | 64,078 | 1.33 | 173.487 |
| 1960 | 41,236 | 28,290 | 69,525 | 2.45 | 145.762 |
| 1965 | 45,489 | 33,443 | 78,932 | 2.44 | 136.019 |
| 1970 | 49,626 | 38,739 | 88,365 | 2.34 | 128.103 |
| 1975 | 53,629 | 45,428 | 99,057 | 2.09 | 118.053 |
| 1980 | 57,855 | 52,285 | 110,141 | 2.46 | 110.653 |
| 1985 | 65,814 | 58,302 | 124,117 | 2.28 | 112.885 |
| 1990 | 73,823 | 64,787 | 138,610 | 1.86 | 113.947 |
| 1995 | 78,159 | 71,896 | 150,054 | 1.45 | 108.711 |
| 2000 | 81,831 | 78,234 | 160,065 | 0.91 | 104.598 |
| 2005 | 84,158 | 80,207 | 164,365 | 0.31 | 104.926 |
| 2010 | 85,319 | 81,203 | 166,522 | 0.10 | 105.069 |
| 2015 | 84,211 | 80,694 | 164,905 | -0.38 | 104.358 |
| 2020 | 82,450 | 79,708 | 162,158 | 0.99 | 103.440 |
| 2021 | 83,157 | 80,573 | 163,730 | 0.94 | 103.207 |
| 2022 | 83,817 | 81,362 | 165,180 | 0.82 | 103.017 |
| 2023 | 84,417 | 82,090 | 166,506 | 0.78 | 102.835 |
| 2024 | 84,988 | 82,789 | 167,777 | 0.74 | 102.656 |
| 2025 | 85,537 | 83,462 | 168,999 | 0.71 | 102.486 |
| Year | Life expectancy | Median age | Fertility rate |
|---|---|---|---|
| 1950 | 59.569 | 22.031 | 5.210 |
| 1955 | 61.202 | 22.857 | 6.215 |
| 1960 | 62.882 | 20.163 | 5.969 |
| 1965 | 64.367 | 18.145 | 5.137 |
| 1970 | 65.811 | 19.504 | 4.343 |
| 1975 | 68.011 | 19.937 | 3.658 |
| 1980 | 70.674 | 21.333 | 3.039 |
| 1985 | 73.070 | 22.450 | 2.905 |
| 1990 | 73.455 | 24.051 | 3.015 |
| 1995 | 74.511 | 25.337 | 3.040 |
| 2000 | 74.894 | 26.405 | 2.915 |
| 2005 | 76.427 | 27.446 | 2.638 |
| 2010 | 76.095 | 28.003 | 2.973 |
| 2015 | 76.444 | 29.620 | 2.933 |
| 2020 | 75.529 | 30.831 | 2.895 |
| 2021 | 75.434 | 30.884 | 2.856 |
| 2022 | 77.102 | 30.980 | 2.819 |
| 2023 | 77.209 | 31.120 | 2.781 |
| 2024 | 77.422 | 31.282 | 2.748 |
| 2025 | 77.626 | 31.460 | 2.712 |
| Year | Total | Crude(per 1000) | ||
|---|---|---|---|---|
| Death | Birth | Crude death | Crude birth | |
| 1950 | 409 | 1,761 | 6.730 | 28.969 |
| 1955 | 412 | 2,276 | 6.430 | 35.513 |
| 1960 | 421 | 2,457 | 6.062 | 35.334 |
| 1965 | 426 | 2,413 | 5.395 | 30.575 |
| 1970 | 448 | 2,661 | 5.070 | 30.118 |
| 1975 | 463 | 2,901 | 4.673 | 29.283 |
| 1980 | 468 | 2,956 | 4.245 | 26.837 |
| 1985 | 482 | 3,143 | 3.883 | 25.324 |
| 1990 | 586 | 3,604 | 4.230 | 26.004 |
| 1995 | 652 | 3,741 | 4.343 | 24.930 |
| 2000 | 727 | 3,688 | 4.541 | 23.039 |
| 2005 | 749 | 3,196 | 4.557 | 19.442 |
| 2010 | 864 | 3,487 | 5.187 | 20.939 |
| 2015 | 979 | 3,288 | 5.939 | 19.936 |
| 2020 | 1,171 | 3,018 | 7.223 | 18.613 |
| 2021 | 1,214 | 2,996 | 7.414 | 18.296 |
| 2022 | 1,113 | 2,975 | 6.736 | 18.008 |
| 2023 | 1,144 | 2,941 | 6.868 | 17.662 |
| 2024 | 1,161 | 2,910 | 6.920 | 17.342 |
| 2025 | 1,186 | 2,878 | 7.015 | 17.030 |
| Year | Population | Urban (%) | |
|---|---|---|---|
| Urban | Rural | ||
| 1950 | 24,636 | 35,015 | 41.300 |
| 1955 | 28,605 | 34,036 | 45.665 |
| 1960 | 33,469 | 33,273 | 50.147 |
| 1965 | 41,567 | 33,263 | 55.548 |
| 1970 | 51,936 | 31,941 | 61.920 |
| 1975 | 78,072 | 15,280 | 83.632 |
| 1980 | 97,627 | 6,506 | 93.753 |
| 1985 | 107,641 | 8,931 | 92.339 |
| 1990 | 118,472 | 12,010 | 90.796 |
| 1995 | 133,996 | 11,565 | 92.055 |
| 2000 | 144,657 | 10,672 | 93.129 |
| 2005 | 148,314 | 10,088 | 93.631 |
| 2010 | 150,035 | 9,409 | 94.099 |
| 2015 | 152,953 | 8,844 | 94.534 |
| 2020 | 160,185 | 8,542 | 94.938 |
| 2021 | 161,645 | 8,481 | 95.015 |
| 2022 | 163,047 | 8,417 | 95.091 |
| 2023 | 164,397 | 8,351 | 95.166 |
| 2024 | 165,722 | 8,283 | 95.240 |
| Age group | Male | Female | Total | M per 100 F | |
|---|---|---|---|---|---|
| Persons | Share (%) | ||||
| 00-04 | 7,557 | 7,077 | 14,634 | 8.72 | 106.783 |
| 05-09 | 7,731 | 7,234 | 14,966 | 8.92 | 106.870 |
| 10-14 | 7,209 | 6,785 | 13,993 | 8.34 | 106.249 |
| 15-19 | 6,155 | 5,885 | 12,040 | 7.18 | 104.588 |
| 20-24 | 5,964 | 5,524 | 11,489 | 6.85 | 107.965 |
| 25-29 | 6,153 | 5,428 | 11,581 | 6.90 | 113.357 |
| 30-34 | 5,798 | 5,215 | 11,012 | 6.56 | 111.179 |
| 35-39 | 5,032 | 4,660 | 9,692 | 5.78 | 107.983 |
| 40-44 | 4,620 | 4,559 | 9,179 | 5.47 | 101.338 |
| 45-49 | 4,574 | 4,537 | 9,111 | 5.43 | 100.816 |
| 50-54 | 4,893 | 5,035 | 9,928 | 5.92 | 97.180 |
| 55-59 | 4,944 | 4,879 | 9,823 | 5.85 | 101.332 |
| 60-64 | 4,620 | 4,565 | 9,184 | 5.47 | 101.205 |
| 65-69 | 3,635 | 3,836 | 7,471 | 4.45 | 94.760 |
| 70-74 | 2,716 | 3,159 | 5,875 | 3.50 | 85.977 |
| 75-79 | 1,847 | 2,128 | 3,975 | 2.37 | 86.795 |
| 80-84 | 836 | 1,181 | 2,017 | 1.20 | 70.787 |
| 85-89 | 508 | 692 | 1,200 | 0.72 | 73.410 |
| 90-94 | 145 | 261 | 406 | 0.24 | 55.556 |
| 95-99 | 42 | 111 | 153 | 0.09 | 37.838 |
| 100+ | 7 | 40 | 47 | 0.03 | 17.500 |
| Total | 84,986 | 82,791 | 167,776 | 102.651 | |