Gender ratio in South Korea

Source UN (World Population Prospects 2024)
Date23 May 2026
Population (2026)
Male Population 25.73M
Female Population 25.87M
Male (%) 49.86%
Female (%) 50.14%
Female Surplus 146K
Sex Ratio (2026)
Total 99.43
At Birth 106.00
Age 0–14 105.10
Age 15–64 105.89
Age 65+ 79.15

In 2026, South Korea is projected to have a nearly balanced sex ratio of 99.43 males per 100 females, indicating that females outnumber males by a small margin. Based on the overall female-to-male ratio, South Korea ranks 151st among 237 countries and territories worldwide, 24th among 51 entities in Asia, and seventh within East Asia. Its gender ratio is comparable to those of Dominica, Türkiye, and the Philippines.

There are 25,726,865 (25.73 million) males and 25,873,523 (25.87 million) females in South Korea, resulting in a female surplus of about 147K people. In percentage terms, females make up 50.14% of the population, compared to 49.86% for males. South Korea has the 20th-highest absolute female surplus in Asia and ranks 65th globally.

In South Korea, the male-to-female ratio fell from 104.36 males per 100 females in 1950 to below parity in 2019, when women began to outnumber men. This trend is expected to continue, with the ratio projected to decline further to about 89.10 males per 100 females by 2100.

The sex ratio at birth in South Korea is approximately 106.0 male births for every 100 female births. Historically, the ratio remained relatively stable from 1950 to 1989, then increased to 115.7 in 1990 before declining to 105.2 in 2016, illustrating shifts in birth sex ratios over time.

As of 2026, South Korea has more males than females in age groups under 55. The highest male-to-female ratio is found in the 30–34 age group, with 115.64 males per 100 females. Among children under 15, the sex ratio is 105.10, while in the working-age population (15–64), the ratio is moderately male-skewed at 105.89 males per 100 females. However, the ratio declines sharply among those aged 65 and older, with only 79.15 males for every 100 females. Among the elderly, women greatly outnumber men, with females outnumbering males by roughly 2 to 1 in the 85–89 age group and by about 18 to 1 among centenarians.

South Korea Sex ratio by age group (2026)

Age group Male Female M per 100 F
People(%)People(%)
00-04 635,278 51.30 603,105 48.70 105.335
05-09 818,472 51.25 778,681 48.75 105.110
10-14 1,142,171 51.21 1,088,176 48.79 104.962
15-19 1,205,370 51.48 1,136,089 48.52 106.098
20-24 1,344,765 51.94 1,244,313 48.06 108.073
25-29 1,752,250 52.33 1,596,531 47.67 109.754
30-34 1,965,051 53.63 1,699,289 46.37 115.640
35-39 1,753,722 52.88 1,562,905 47.12 112.209
40-44 1,897,659 51.75 1,768,961 48.25 107.275
45-49 2,008,271 51.03 1,927,543 48.97 104.188
50-54 2,112,897 50.60 2,062,726 49.40 102.432
55-59 2,184,638 49.90 2,193,613 50.10 99.591
60-64 2,020,054 49.78 2,038,251 50.22 99.107
65-69 1,874,646 48.40 1,998,626 51.60 93.797
70-74 1,275,951 46.90 1,444,420 53.10 88.337
75-79 835,452 44.92 1,024,362 55.08 81.558
80-84 529,063 40.23 786,090 59.77 67.303
85-89 275,754 33.03 559,159 66.97 49.316
90-94 82,873 23.51 269,594 76.49 30.740
95-99 11,844 13.09 78,663 86.91 15.057
100+ 684 5.22 12,428 94.78 5.504
Total 25,726,865 49.86 25,873,525 50.14 99.433
  • Total
  • At birth

South Korea Sex ratio projections

Year Male Female Percentage (%) M per 100 F
MFBirthTotal
2024 25,814,137 25,903,453 49.91 50.09 105.9 99.655
2025 25,774,811 25,892,218 49.89 50.11 105.9 99.547
2026 25,726,865 25,873,523 49.86 50.14 106.0 99.433
2027 25,670,863 25,847,982 49.83 50.17 106.0 99.315
2028 25,607,300 25,816,130 49.80 50.20 106.0 99.191
2029 25,536,117 25,777,899 49.76 50.24 106.1 99.062
2030 25,456,248 25,732,336 49.73 50.27 106.1 98.927
2031 25,368,249 25,679,926 49.69 50.31 106.1 98.786
2032 25,271,391 25,619,898 49.66 50.34 106.1 98.640
2033 25,163,767 25,550,537 49.62 50.38 106.1 98.486
2034 25,045,109 25,471,699 49.58 50.42 106.1 98.325
2035 24,916,390 25,384,343 49.53 50.47 106.1 98.157
2036 24,777,949 25,288,594 49.49 50.51 106.1 97.981
2037 24,629,496 25,183,930 49.44 50.56 106.2 97.798
2038 24,470,931 25,070,226 49.40 50.60 106.2 97.610
2039 24,303,423 24,948,466 49.35 50.65 106.2 97.414
2040 24,128,614 24,820,072 49.29 50.71 106.2 97.214
2041 23,945,982 24,684,451 49.24 50.76 106.2 97.008
2042 23,756,994 24,542,750 49.19 50.81 106.2 96.798
2043 23,563,109 24,395,931 49.13 50.87 106.2 96.586
2044 23,361,951 24,241,415 49.08 50.92 106.2 96.372
2045 23,153,817 24,079,139 49.02 50.98 106.2 96.157
2046 22,940,522 23,910,376 48.96 51.04 106.2 95.944
2047 22,719,505 23,732,555 48.91 51.09 106.2 95.731
2048 22,489,513 23,544,281 48.85 51.15 106.2 95.520
2049 22,251,383 23,345,911 48.80 51.20 106.2 95.312
2050 22,005,605 23,137,529 48.75 51.25 106.2 95.108
2051 21,752,317 22,918,833 48.69 51.31 106.2 94.910
2052 21,490,326 22,688,515 48.64 51.36 106.2 94.719
2053 21,222,644 22,449,398 48.60 51.40 106.2 94.535
2054 20,952,765 22,204,687 48.55 51.45 106.2 94.362
2055 20,679,447 21,953,223 48.51 51.49 106.2 94.198
2056 20,401,327 21,693,770 48.46 51.54 106.2 94.042
2057 20,118,477 21,426,612 48.43 51.57 106.2 93.895
2058 19,831,679 21,152,863 48.39 51.61 106.2 93.754
2059 19,544,689 20,876,343 48.35 51.65 106.2 93.621
2060 19,258,713 20,598,515 48.32 51.68 106.2 93.496
2061 18,975,422 20,321,268 48.29 51.71 106.2 93.377
2062 18,694,504 20,044,540 48.26 51.74 106.2 93.265
2063 18,415,313 19,767,854 48.23 51.77 106.2 93.158
2064 18,139,686 19,493,137 48.20 51.80 106.2 93.057
2065 17,867,593 19,220,474 48.18 51.82 106.2 92.961
2066 17,599,644 18,950,668 48.15 51.85 106.2 92.871
2067 17,335,130 18,683,388 48.13 51.87 106.2 92.784
2068 17,074,376 18,419,044 48.11 51.89 106.2 92.700
2069 16,815,590 18,156,224 48.08 51.92 106.2 92.616
2070 16,558,229 17,894,758 48.06 51.94 106.2 92.531
2071 16,304,551 17,637,147 48.04 51.96 106.2 92.444
2072 16,054,595 17,383,540 48.01 51.99 106.2 92.355
2073 15,808,683 17,134,342 47.99 52.01 106.2 92.263
2074 15,566,225 16,889,257 47.96 52.04 106.2 92.166
2075 15,326,897 16,647,936 47.93 52.07 106.2 92.065
2076 15,090,665 16,410,523 47.91 52.09 106.2 91.957
2077 14,857,128 16,176,525 47.87 52.13 106.2 91.844
2078 14,626,736 15,946,215 47.84 52.16 106.2 91.725
2079 14,399,550 15,719,865 47.81 52.19 106.2 91.601
2080 14,174,901 15,496,607 47.77 52.23 106.2 91.471
2081 13,951,701 15,275,456 47.74 52.26 106.2 91.334
2082 13,730,869 15,057,478 47.70 52.30 106.2 91.190
2083 13,512,813 14,842,906 47.65 52.35 106.2 91.039
2084 13,297,263 14,631,338 47.61 52.39 106.2 90.882
2085 13,083,735 14,422,190 47.57 52.43 106.2 90.719
2086 12,871,767 14,214,801 47.52 52.48 106.2 90.552
2087 12,661,723 14,009,030 47.47 52.53 106.2 90.383
2088 12,454,063 13,804,860 47.43 52.57 106.2 90.215
2089 12,249,293 13,602,483 47.38 52.62 106.2 90.052
2090 12,047,453 13,401,641 47.34 52.66 106.2 89.895
2091 11,849,212 13,202,681 47.30 52.70 106.2 89.749
2092 11,655,011 13,005,809 47.26 52.74 106.2 89.614
2093 11,465,535 12,811,590 47.23 52.77 106.2 89.493
2094 11,281,486 12,620,588 47.20 52.80 106.2 89.390
2095 11,102,776 12,432,769 47.17 52.83 106.2 89.303
2096 10,930,118 12,248,974 47.16 52.84 106.2 89.233
2097 10,763,763 12,069,700 47.14 52.86 106.2 89.180
2098 10,602,446 11,894,034 47.13 52.87 106.2 89.141
2099 10,446,246 11,722,209 47.12 52.88 106.2 89.115
2100 10,294,718 11,554,074 47.12 52.88 106.2 89.100

South Korea Sex ratio estimates

Year Male Female Percentage (%) M per 100 F
MFBirthTotal
1950 10,089,463 9,667,859 51.07 48.93 106.2 104.361
1951 10,018,324 9,850,666 50.42 49.58 106.3 101.702
1952 10,144,220 10,085,659 50.14 49.86 106.3 100.581
1953 10,415,249 10,360,076 50.13 49.87 106.3 100.533
1954 10,751,397 10,664,176 50.20 49.80 106.3 100.818
1955 11,129,887 10,995,216 50.30 49.70 106.3 101.225
1956 11,516,740 11,357,694 50.35 49.65 106.3 101.400
1957 11,911,603 11,749,189 50.34 49.66 106.3 101.382
1958 12,319,762 12,154,165 50.34 49.66 106.2 101.362
1959 12,732,865 12,565,368 50.33 49.67 106.2 101.333
1960 13,142,885 12,972,495 50.33 49.67 106.2 101.313
1961 13,518,340 13,334,612 50.34 49.66 106.2 101.378
1962 13,859,317 13,649,921 50.38 49.62 106.2 101.534
1963 14,192,897 13,952,642 50.43 49.57 106.2 101.722
1964 14,508,782 14,236,194 50.47 49.53 106.2 101.915
1965 14,793,712 14,490,626 50.52 49.48 106.2 102.092
1966 15,079,543 14,766,397 50.52 49.48 106.2 102.121
1967 15,399,825 15,095,904 50.50 49.50 106.2 102.013
1968 15,734,718 15,440,572 50.47 49.53 106.2 101.905
1969 16,068,365 15,784,396 50.45 49.55 106.1 101.799
1970 16,408,688 16,133,509 50.42 49.58 106.1 101.706
1971 16,764,507 16,475,346 50.43 49.57 106.1 101.755
1972 17,132,133 16,804,333 50.48 49.52 106.1 101.951
1973 17,498,278 17,127,572 50.54 49.46 106.1 102.164
1974 17,854,607 17,433,230 50.60 49.40 106.1 102.417
1975 18,172,463 17,703,280 50.65 49.35 106.1 102.650
1976 18,431,423 17,948,502 50.66 49.34 106.1 102.691
1977 18,658,113 18,185,523 50.64 49.36 106.1 102.599
1978 18,872,127 18,409,807 50.62 49.38 106.1 102.511
1979 19,081,885 18,629,014 50.60 49.40 106.1 102.431
1980 19,294,155 18,846,952 50.59 49.41 106.1 102.373
1981 19,564,785 19,124,404 50.57 49.43 107.4 102.303
1982 19,894,327 19,461,827 50.55 49.45 107.3 102.222
1983 20,215,161 19,785,781 50.54 49.46 107.7 102.170
1984 20,514,881 20,083,419 50.53 49.47 108.7 102.148
1985 20,795,318 20,353,645 50.54 49.46 109.7 102.170
1986 21,096,896 20,621,608 50.57 49.43 111.2 102.305
1987 21,424,621 20,897,470 50.62 49.38 110.2 102.523
1988 21,753,730 21,169,248 50.68 49.32 112.7 102.761
1989 22,086,858 21,437,909 50.75 49.25 112.8 103.027
1990 22,397,804 21,683,623 50.81 49.19 115.7 103.294
1991 22,598,261 21,840,890 50.85 49.15 113.0 103.468
1992 22,718,936 21,934,758 50.88 49.12 113.8 103.575
1993 22,853,958 22,033,766 50.91 49.09 115.2 103.722
1994 22,996,873 22,133,967 50.96 49.04 115.0 103.899
1995 23,136,768 22,231,658 51.00 49.00 113.2 104.071
1996 23,285,924 22,352,776 51.02 48.98 111.5 104.175
1997 23,444,765 22,496,772 51.03 48.97 108.9 104.214
1998 23,597,630 22,633,247 51.04 48.96 110.0 104.261
1999 23,742,864 22,757,519 51.06 48.94 109.7 104.330
2000 23,887,084 22,879,577 51.08 48.92 110.0 104.404
2001 24,021,270 23,022,198 51.06 48.94 109.3 104.340
2002 24,130,655 23,168,466 51.02 48.98 109.7 104.153
2003 24,220,929 23,293,232 50.98 49.02 108.8 103.983
2004 24,295,854 23,401,222 50.94 49.06 108.2 103.823
2005 24,355,325 23,496,319 50.90 49.10 107.8 103.656
2006 24,416,622 23,589,895 50.86 49.14 107.4 103.505
2007 24,490,415 23,687,703 50.83 49.17 106.4 103.389
2008 24,568,989 23,787,503 50.81 49.19 106.3 103.285
2009 24,655,061 23,891,625 50.79 49.21 106.4 103.195
2010 24,755,452 24,013,880 50.76 49.24 106.6 103.088
2011 24,895,999 24,231,645 50.68 49.32 105.8 102.742
2012 25,068,874 24,530,706 50.54 49.46 105.7 102.194
2013 25,241,689 24,829,476 50.41 49.59 105.4 101.660
2014 25,412,647 25,126,408 50.28 49.72 105.3 101.139
2015 25,576,742 25,407,170 50.17 49.83 105.3 100.667
2016 25,698,156 25,599,683 50.10 49.90 105.2 100.385
2017 25,775,545 25,710,726 50.06 49.94 106.1 100.252
2018 25,836,216 25,804,678 50.03 49.97 105.5 100.122
2019 25,882,760 25,885,087 50.00 50.00 105.6 99.991
2020 25,903,431 25,955,050 49.95 50.05 105.7 99.801
2021 25,876,232 25,972,166 49.91 50.09 105.7 99.631
2022 25,840,655 25,941,857 49.90 50.10 105.8 99.610
2023 25,831,859 25,916,880 49.92 50.08 105.8 99.672