The latest officially reported population of Bahrain was 1,588,670 in 2024 vs 130,861,007 people in Mexico in 2024. In 2026, based on the adjusted UN estimation, the current Bahrain's population is 1,669,503 people compared to 133,323,134 in Mexico.
Population statistics:
- Mexico's population is 79.9 times bigger than Bahrain's.
- Bahrain is ranked the 151st most populous country in the world, while Mexico is the 11th.
- The countries together account for 1.63% of the world: 0.02% for Bahrain vs 1.61% for Mexico.
- For the last 10 years, Bahrain has had an average growth rate of +2.2% per year vs +0.92% in Mexico.
- Since 2006, the population of Bahrain has increased from 960K people to 1.67M (73.8% growth), while Mexico has grown from 107M to 133M (24.3% growth).
Bahrain vs Mexico: population by year and forecast
| Year | Population | |
|---|---|---|
Bahrain
|
Mexico
|
|
| 2100 | 3,082,127 | 131,182,639 |
| 2099 | 3,062,381 | 131,943,283 |
| 2098 | 3,042,626 | 132,700,369 |
| 2097 | 3,022,907 | 133,455,010 |
| 2096 | 3,003,249 | 134,204,227 |
| 2095 | 2,983,633 | 134,949,218 |
| 2094 | 2,964,048 | 135,687,085 |
| 2093 | 2,944,524 | 136,415,232 |
| 2092 | 2,925,040 | 137,127,644 |
| 2091 | 2,905,580 | 137,833,985 |
| 2090 | 2,886,217 | 138,527,198 |
| 2089 | 2,866,951 | 139,208,862 |
| 2088 | 2,847,692 | 139,874,924 |
| 2087 | 2,828,537 | 140,530,483 |
| 2086 | 2,809,429 | 141,174,372 |
| 2085 | 2,790,308 | 141,805,496 |
| 2084 | 2,771,240 | 142,415,948 |
| 2083 | 2,752,172 | 143,009,187 |
| 2082 | 2,733,129 | 143,579,768 |
| 2081 | 2,714,131 | 144,138,842 |
| 2080 | 2,695,175 | 144,677,451 |
| 2079 | 2,676,229 | 145,195,172 |
| 2078 | 2,657,278 | 145,691,242 |
| 2077 | 2,638,324 | 146,165,064 |
| 2076 | 2,619,372 | 146,616,674 |
| 2075 | 2,600,364 | 147,046,928 |
| 2074 | 2,581,289 | 147,455,761 |
| 2073 | 2,562,193 | 147,841,295 |
| 2072 | 2,543,097 | 148,201,143 |
| 2071 | 2,523,937 | 148,534,057 |
| 2070 | 2,504,829 | 148,848,168 |
| 2069 | 2,485,696 | 149,134,711 |
| 2068 | 2,466,554 | 149,395,717 |
| 2067 | 2,447,412 | 149,630,386 |
| 2066 | 2,428,336 | 149,842,125 |
| 2065 | 2,409,347 | 150,029,268 |
| 2064 | 2,390,392 | 150,187,992 |
| 2063 | 2,371,501 | 150,319,846 |
| 2062 | 2,352,705 | 150,424,224 |
| 2061 | 2,334,013 | 150,502,250 |
| 2060 | 2,315,423 | 150,555,648 |
| 2059 | 2,296,883 | 150,577,220 |
| 2058 | 2,278,395 | 150,569,044 |
| 2057 | 2,260,013 | 150,535,337 |
| 2056 | 2,241,679 | 150,475,242 |
| 2055 | 2,223,337 | 150,384,336 |
| 2054 | 2,205,001 | 150,263,237 |
| 2053 | 2,186,627 | 150,110,615 |
| 2052 | 2,168,245 | 149,923,918 |
| 2051 | 2,149,857 | 149,705,066 |
| 2050 | 2,131,404 | 149,450,774 |
| 2049 | 2,112,930 | 149,166,038 |
| 2048 | 2,094,386 | 148,836,849 |
| 2047 | 2,075,759 | 148,478,965 |
| 2046 | 2,057,011 | 148,081,688 |
| 2045 | 2,038,165 | 147,647,318 |
| 2044 | 2,019,181 | 147,173,101 |
| 2043 | 2,000,134 | 146,667,761 |
| 2042 | 1,981,020 | 146,123,566 |
| 2041 | 1,961,864 | 145,543,650 |
| 2040 | 1,942,729 | 144,931,633 |
| 2039 | 1,923,661 | 144,286,278 |
| 2038 | 1,904,631 | 143,601,872 |
| 2037 | 1,885,711 | 142,883,005 |
| 2036 | 1,866,890 | 142,138,929 |
| 2035 | 1,848,209 | 141,359,885 |
| 2034 | 1,829,691 | 140,554,653 |
| 2033 | 1,811,344 | 139,713,048 |
| 2032 | 1,793,151 | 138,843,644 |
| 2031 | 1,775,117 | 137,947,334 |
| 2030 | 1,757,225 | 137,023,304 |
| 2029 | 1,738,388 | 136,071,720 |
| 2028 | 1,716,506 | 135,090,755 |
| 2027 | 1,691,696 | 134,081,337 |
| 2026 | 1,661,275 | 133,042,003 |
| 2025 | 1,627,179 | 131,970,909 |
| 2024 | 1,588,670 | 130,861,007 |
| 2023 | 1,577,059 | 129,739,759 |
| 2022 | 1,524,693 | 128,613,117 |
| 2021 | 1,504,365 | 127,648,148 |
| 2020 | 1,472,204 | 126,799,054 |
| 2019 | 1,483,756 | 125,762,982 |
| 2018 | 1,503,091 | 124,573,711 |
| 2017 | 1,501,116 | 123,400,057 |
| 2016 | 1,423,726 | 122,251,351 |
| 2015 | 1,370,322 | 121,072,306 |
| 2014 | 1,314,562 | 119,784,261 |
| 2013 | 1,253,191 | 118,343,573 |
| 2012 | 1,208,964 | 116,818,208 |
| 2011 | 1,195,020 | 115,243,504 |
| 2010 | 1,228,543 | 113,623,895 |
| 2009 | 1,178,415 | 111,999,721 |
| 2008 | 1,103,496 | 110,374,288 |
| 2007 | 1,039,295 | 108,774,360 |
| 2006 | 960,424 | 107,253,666 |
| 2005 | 888,822 | 105,811,504 |
| 2004 | 823,741 | 104,394,131 |
| 2003 | 764,517 | 102,978,515 |
| 2002 | 710,553 | 101,548,624 |
| 2001 | 661,316 | 100,099,099 |
| 2000 | 637,582 | 98,625,552 |
| 1999 | 620,989 | 97,115,707 |
| 1998 | 604,842 | 95,575,245 |
| 1997 | 589,115 | 94,021,207 |
| 1996 | 573,792 | 92,452,702 |
| 1995 | 558,879 | 90,862,455 |
| 1994 | 544,366 | 89,259,205 |
| 1993 | 530,225 | 87,653,807 |
| 1992 | 516,458 | 86,044,809 |
| 1991 | 503,052 | 84,430,572 |
| 1990 | 514,797 | 82,820,170 |
| 1989 | 497,327 | 81,247,182 |
| 1988 | 479,929 | 79,695,531 |
| 1987 | 462,854 | 78,136,651 |
| 1986 | 446,286 | 76,585,637 |
| 1985 | 430,358 | 75,043,414 |
| 1984 | 415,154 | 73,506,846 |
| 1983 | 400,707 | 71,971,240 |
| 1982 | 386,983 | 70,433,260 |
| 1981 | 373,524 | 68,892,108 |
| 1980 | 358,978 | 67,300,334 |
| 1979 | 343,457 | 65,648,865 |
| 1978 | 328,046 | 63,979,046 |
| 1977 | 312,823 | 62,308,493 |
| 1976 | 297,863 | 60,645,512 |
| 1975 | 283,243 | 58,982,400 |
| 1974 | 269,038 | 57,320,149 |
| 1973 | 255,320 | 55,667,284 |
| 1972 | 242,113 | 54,030,168 |
| 1971 | 230,733 | 52,412,558 |
| 1970 | 224,809 | 50,814,953 |
| 1969 | 222,469 | 49,233,194 |
| 1968 | 219,337 | 47,668,303 |
| 1967 | 214,189 | 46,129,608 |
| 1966 | 207,543 | 44,629,106 |
| 1965 | 200,866 | 43,174,477 |
| 1964 | 193,816 | 41,772,049 |
| 1963 | 186,501 | 40,424,065 |
| 1962 | 179,349 | 39,129,200 |
| 1961 | 172,346 | 37,890,118 |
| 1960 | 165,477 | 36,724,615 |
Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).
GeoRank.org/population/bahrain/mexico | CC BY 
From 2006 to 2016, the population of Bahrain increased by 463,302 people (a 48.2% growth), while Mexico gained 14,997,685 people (a 14% growth).
For the next 10 years, from 2016 to 2026, Bahrain gained 245,777 people (a 17.3% growth), while Mexico's population increased by 11,071,783 people (a 9.06% growth).
Bahrain was ranked 157th most populous country in 2006 and is 151st in 2026. Mexico was ranked 11th in 2006 and still ranked 11th now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Bahrain's population will grow by 27.7% to 2,131,404 people with a rank change from 151st to 146th. The population of Mexico will increase by 12.1% to 149,450,774 people and rank change from 11th to 12th.
Bahrain is projected to reach its peak in 2100 at 3.08M people compared to the peak of 151M people in 2059 for Mexico.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
Bahrain
|
Mexico
|
|
| 2100 | 0.64% | -0.58% |
| 2099 | 0.65% | -0.57% |
| 2098 | 0.65% | -0.57% |
| 2097 | 0.65% | -0.56% |
| 2096 | 0.66% | -0.55% |
| 2095 | 0.66% | -0.54% |
| 2094 | 0.66% | -0.53% |
| 2093 | 0.67% | -0.52% |
| 2092 | 0.67% | -0.51% |
| 2091 | 0.67% | -0.5% |
| 2090 | 0.67% | -0.49% |
| 2089 | 0.68% | -0.48% |
| 2088 | 0.68% | -0.47% |
| 2087 | 0.68% | -0.46% |
| 2086 | 0.69% | -0.45% |
| 2085 | 0.69% | -0.43% |
| 2084 | 0.69% | -0.41% |
| 2083 | 0.7% | -0.4% |
| 2082 | 0.7% | -0.39% |
| 2081 | 0.7% | -0.37% |
| 2080 | 0.71% | -0.36% |
| 2079 | 0.71% | -0.34% |
| 2078 | 0.72% | -0.32% |
| 2077 | 0.72% | -0.31% |
| 2076 | 0.73% | -0.29% |
| 2075 | 0.74% | -0.28% |
| 2074 | 0.75% | -0.26% |
| 2073 | 0.75% | -0.24% |
| 2072 | 0.76% | -0.22% |
| 2071 | 0.76% | -0.21% |
| 2070 | 0.77% | -0.19% |
| 2069 | 0.78% | -0.17% |
| 2068 | 0.78% | -0.16% |
| 2067 | 0.79% | -0.14% |
| 2066 | 0.79% | -0.12% |
| 2065 | 0.79% | -0.11% |
| 2064 | 0.8% | -0.09% |
| 2063 | 0.8% | -0.07% |
| 2062 | 0.8% | -0.05% |
| 2061 | 0.8% | -0.04% |
| 2060 | 0.81% | -0.01% |
| 2059 | 0.81% | 0.005% |
| 2058 | 0.81% | 0.02% |
| 2057 | 0.82% | 0.04% |
| 2056 | 0.82% | 0.06% |
| 2055 | 0.83% | 0.08% |
| 2054 | 0.84% | 0.1% |
| 2053 | 0.85% | 0.12% |
| 2052 | 0.86% | 0.15% |
| 2051 | 0.87% | 0.17% |
| 2050 | 0.87% | 0.19% |
| 2049 | 0.89% | 0.22% |
| 2048 | 0.9% | 0.24% |
| 2047 | 0.91% | 0.27% |
| 2046 | 0.92% | 0.29% |
| 2045 | 0.94% | 0.32% |
| 2044 | 0.95% | 0.34% |
| 2043 | 0.96% | 0.37% |
| 2042 | 0.98% | 0.4% |
| 2041 | 0.98% | 0.42% |
| 2040 | 0.99% | 0.45% |
| 2039 | 1% | 0.48% |
| 2038 | 1% | 0.5% |
| 2037 | 1.01% | 0.52% |
| 2036 | 1.01% | 0.55% |
| 2035 | 1.01% | 0.57% |
| 2034 | 1.01% | 0.6% |
| 2033 | 1.01% | 0.63% |
| 2032 | 1.02% | 0.65% |
| 2031 | 1.02% | 0.67% |
| 2030 | 1.08% | 0.7% |
| 2029 | 1.27% | 0.73% |
| 2028 | 1.47% | 0.75% |
| 2027 | 1.83% | 0.78% |
| 2026 | 2.1% | 0.81% |
| 2025 | 2.42% | 0.85% |
| 2024 | 0.74% | 0.86% |
| 2023 | 3.43% | 0.88% |
| 2022 | 1.35% | 0.76% |
| 2021 | 2.18% | 0.67% |
| 2020 | -0.78% | 0.82% |
| 2019 | -1.29% | 0.95% |
| 2018 | 0.13% | 0.95% |
| 2017 | 5.44% | 0.94% |
| 2016 | 3.9% | 0.97% |
| 2015 | 4.24% | 1.08% |
| 2014 | 4.9% | 1.22% |
| 2013 | 3.66% | 1.31% |
| 2012 | 1.17% | 1.37% |
| 2011 | -2.73% | 1.43% |
| 2010 | 4.25% | 1.45% |
| 2009 | 6.79% | 1.47% |
| 2008 | 6.18% | 1.47% |
| 2007 | 8.21% | 1.42% |
| 2006 | 8.06% | 1.36% |
| 2005 | 7.9% | 1.36% |
| 2004 | 7.75% | 1.37% |
| 2003 | 7.59% | 1.41% |
| 2002 | 7.45% | 1.45% |
| 2001 | 3.72% | 1.49% |
| 2000 | 2.67% | 1.55% |
| 1999 | 2.67% | 1.61% |
| 1998 | 2.67% | 1.65% |
| 1997 | 2.67% | 1.7% |
| 1996 | 2.67% | 1.75% |
| 1995 | 2.67% | 1.8% |
| 1994 | 2.67% | 1.83% |
| 1993 | 2.67% | 1.87% |
| 1992 | 2.66% | 1.91% |
| 1991 | -2.28% | 1.94% |
| 1990 | 3.51% | 1.94% |
| 1989 | 3.63% | 1.95% |
| 1988 | 3.69% | 2% |
| 1987 | 3.71% | 2.03% |
| 1986 | 3.7% | 2.06% |
| 1985 | 3.66% | 2.09% |
| 1984 | 3.61% | 2.13% |
| 1983 | 3.55% | 2.18% |
| 1982 | 3.6% | 2.24% |
| 1981 | 4.05% | 2.37% |
| 1980 | 4.52% | 2.52% |
| 1979 | 4.7% | 2.61% |
| 1978 | 4.87% | 2.68% |
| 1977 | 5.02% | 2.74% |
| 1976 | 5.16% | 2.82% |
| 1975 | 5.28% | 2.9% |
| 1974 | 5.37% | 2.97% |
| 1973 | 5.45% | 3.03% |
| 1972 | 4.93% | 3.09% |
| 1971 | 2.64% | 3.14% |
| 1970 | 1.05% | 3.21% |
| 1969 | 1.43% | 3.28% |
| 1968 | 2.4% | 3.34% |
| 1967 | 3.2% | 3.36% |
| 1966 | 3.32% | 3.37% |
| 1965 | 3.64% | 3.36% |
| 1964 | 3.92% | 3.33% |
| 1963 | 3.99% | 3.31% |
| 1962 | 4.06% | 3.27% |
| 1961 | 4.15% | 3.17% |
Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).
GeoRank.org/population/bahrain/mexico | CC BY
In 2024, the population of Bahrain grew by 0.74%, while Mexico's population grew by 0.86%.
Live population counters
|
Bahrain
|
Mexico
|
|
|---|---|---|
| Current population |
1669503
|
133323134
|
| Population rank | 151/197 | 11/197 |
| Percent of world population | 0.02% | 1.61% |
| One net population change |
45.3 minutes
|
28.1 seconds
|
| One birth every |
26.7 minutes
|
15.5 seconds
|
| One death every |
2.66 hours
|
39.5 seconds
|
| Daily growth/decline | +32 | +3,072 |
| Annual growth/decline | +11,611 | +1,121,248 |
| Annual growth/decline rate | +0.74% | +0.86% |
| Population growth rate rank | 117/197 | 110/197 |
| One migration net change every |
29.1 minutes
|
4.88 minutes
|
| Annual migration change | +18,128 | -108,037 |
| Net migration rank | 34/196 | 181/196 |
| Foreign-born residents | 840,202 | 1,726,089 |
| Foreign-born residents rank | 66/195 | 42/195 |
| Foreign-born share of population | 52.3% | 1.3% |
| Foreign-born share rank | 7/195 | 149/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Bahrain
|
Mexico
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | 18,128 | - | -108,037 |
| 2024 | - | 22,699 | - | -104,581 |
| 2023 | 16,356 | 20,002 | 1,238,366 | -101,044 |
| 2022 | 17,058 | 18,975 | 1,224,397 | -108,438 |
| 2021 | 15,401 | 11,882 | 936,682 | -122,791 |
| 2020 | 15,056 | -5,048 | 1,031,637 | -147,456 |
| 2019 | 16,639 | -31,967 | 1,357,485 | -169,628 |
| 2018 | 17,445 | -25,978 | 1,366,076 | -175,356 |
| 2017 | 18,140 | 21,958 | 1,384,178 | -227,499 |
| 2016 | 17,996 | 46,833 | 1,445,256 | -304,472 |
| 2015 | 18,193 | 36,809 | 1,508,439 | -291,044 |
| 2014 | 17,826 | 40,815 | 1,587,620 | -228,816 |
| 2013 | 17,044 | 35,574 | 1,642,609 | -120,058 |
| 2012 | 16,219 | 12,801 | 1,656,599 | -128,485 |
| 2011 | 15,990 | -26,107 | 1,659,161 | -37,826 |
| 2010 | 16,474 | -19,329 | 1,658,682 | -40,845 |
| 2009 | 15,795 | 46,467 | 1,661,180 | -30,809 |
| 2008 | 15,541 | 47,674 | 1,670,846 | -50,347 |
| 2007 | 15,393 | 47,500 | 1,684,915 | -105,524 |
| 2006 | 15,248 | 46,615 | 1,706,084 | -244,140 |
| 2005 | 15,196 | 45,682 | 1,732,663 | -310,278 |
| 2004 | 14,454 | 45,413 | 1,759,250 | -346,912 |
| 2003 | 13,243 | 45,571 | 1,788,016 | -369,183 |
| 2002 | 11,875 | 45,952 | 1,820,665 | -379,812 |
| 2001 | 10,948 | 34,371 | 1,836,418 | -378,348 |
| 2000 | 11,339 | 2,886 | 1,845,383 | -356,433 |
| 1999 | 11,397 | 3,130 | 1,859,475 | -328,773 |
| 1998 | 10,970 | 3,733 | 1,871,650 | -321,385 |
| 1997 | 10,739 | 4,036 | 1,898,383 | -340,546 |
| 1996 | 10,607 | 4,162 | 1,922,554 | -343,399 |
| 1995 | 10,824 | 3,842 | 1,941,458 | -340,091 |
| 1994 | 11,133 | 3,387 | 1,959,775 | -354,573 |
| 1993 | 11,521 | 2,850 | 1,963,708 | -358,039 |
| 1992 | 11,577 | 2,768 | 1,956,659 | -344,313 |
| 1991 | 11,491 | 4,562 | 1,942,832 | -326,691 |
| 1990 | 12,337 | 5,090 | 1,926,480 | -321,764 |
| 1989 | 12,293 | 5,220 | 1,927,752 | -386,467 |
| 1988 | 11,995 | 5,294 | 1,936,601 | -374,544 |
| 1987 | 11,709 | 5,152 | 1,971,231 | -415,521 |
| 1986 | 11,455 | 4,822 | 1,998,043 | -451,756 |
| 1985 | 10,924 | 4,657 | 1,983,622 | -445,447 |
| 1984 | 10,269 | 4,557 | 1,960,428 | -425,467 |
| 1983 | 9,821 | 4,252 | 1,939,193 | -402,937 |
| 1982 | 9,396 | 3,980 | 1,921,772 | -382,048 |
| 1981 | 9,020 | 4,523 | 1,904,384 | -361,791 |
| 1980 | 8,802 | 6,741 | 1,893,158 | -252,177 |
| 1979 | 8,587 | 6,908 | 1,908,018 | -246,034 |
| 1978 | 8,358 | 6,974 | 1,921,419 | -243,714 |
| 1977 | 8,093 | 7,017 | 1,902,964 | -239,521 |
| 1976 | 7,818 | 6,993 | 1,891,958 | -229,450 |
| 1975 | 7,535 | 6,900 | 1,880,241 | -216,556 |
| 1974 | 7,265 | 6,711 | 1,868,809 | -207,995 |
| 1973 | 7,012 | 6,450 | 1,845,593 | -200,688 |
| 1972 | 6,763 | 6,190 | 1,823,302 | -193,965 |
| 1971 | 6,650 | 3,159 | 1,790,990 | -185,062 |
| 1970 | 6,973 | -4,939 | 1,753,370 | -164,100 |
| 1969 | 7,277 | -4,638 | 1,711,297 | -137,051 |
| 1968 | 7,584 | -3,952 | 1,671,918 | -116,358 |
| 1967 | 7,492 | -829 | 1,620,534 | -98,680 |
| 1966 | 7,342 | -718 | 1,566,170 | -87,018 |
| 1965 | 7,148 | -415 | 1,508,344 | -78,288 |
| 1964 | 6,873 | 491 | 1,447,360 | -72,581 |
| 1963 | 6,557 | 714 | 1,387,678 | -66,515 |
| 1962 | 6,232 | 810 | 1,328,319 | -59,833 |
| 1961 | 5,882 | 1,076 | 1,265,833 | -56,174 |
| 1960 | 5,513 | 1,266 | 1,206,955 | -85,591 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).
GeoRank.org/population/bahrain/mexico | CC BY
Over the last 10 years, 55.9% of the population change in Bahrain is from natural causes (a gain of 170,110 people) and 44.1% is from migration (a gain of 134,281 people). In Mexico 87.5% is from natural causes (a gain of 13,080,136 people) and 12.5% is from migration (a loss of 1,876,544 people).
As of 2024, 840,202 residents or 52.3% of the population were not native-born in Bahrain, compared to 1,726,089 people or 1.3% in Mexico.
Biggest cities by population
Compare countries by 7 more topics
Population differences between Bahrain and Mexico
|
Bahrain
|
Mexico
|
|
|---|---|---|
| Life expectancy | 81.7 years | 75.6 years |
| Average age | 33.3 years | 32.7 years |
| Median age | 34.2 years | 30.3 years |
| Male:Female ratio | 62:38 | 48.5:51.5 |
| Fertility rate | 1.82 births per woman | 1.91 births per woman |
| Population density | 5,378 ppl/mi² | 177.3 ppl/mi² |
Population map with other countries
Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).
GeoRank.org/population/bahrain/mexico | CC BY
Help us show the world through your eyes
Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.
Data sources:
- World Bank | Health (1960–2025, retrieved 2026-04-06)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
- U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
- Wikidata (2026, retrieved 2026-02-08)
Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.