The latest officially reported population of the Central African Republic was 5,330,690 in 2024 vs 36,559,233 people in Poland in 2024. In 2026, based on the adjusted UN estimation, the current Central African Republic's population is 5,753,659 people compared to 35,806,942 in Poland.
Population statistics:
- Poland's population is 6.22 times bigger than the Central African Republic's.
- The Central African Republic is ranked the 118th most populous country in the world, while Poland is the 47th.
- The countries together account for 0.5% of the world: 0.07% for the Central African Republic vs 0.43% for Poland.
- For the last 10 years, the Central African Republic has had an average growth rate of +1.27% per year vs -0.36% in Poland.
- Since 2006, the population of the Central African Republic has increased from 4.38M people to 5.75M (31.4% growth), while Poland has declined from 38.1M to 35.8M (6.12% decline).
Central African Republic vs Poland: population by year and forecast
| Year | Population | |
|---|---|---|
CAR
|
Poland
|
|
| 2100 | 19,066,004 | 18,350,017 |
| 2099 | 18,985,867 | 18,541,227 |
| 2098 | 18,901,154 | 18,733,999 |
| 2097 | 18,815,607 | 18,928,169 |
| 2096 | 18,724,783 | 19,125,003 |
| 2095 | 18,626,431 | 19,323,203 |
| 2094 | 18,526,390 | 19,525,085 |
| 2093 | 18,425,013 | 19,730,030 |
| 2092 | 18,316,437 | 19,938,529 |
| 2091 | 18,205,237 | 20,151,135 |
| 2090 | 18,087,725 | 20,368,308 |
| 2089 | 17,972,896 | 20,589,970 |
| 2088 | 17,848,943 | 20,817,398 |
| 2087 | 17,721,681 | 21,050,137 |
| 2086 | 17,585,946 | 21,288,179 |
| 2085 | 17,451,621 | 21,531,674 |
| 2084 | 17,310,863 | 21,780,998 |
| 2083 | 17,164,209 | 22,036,816 |
| 2082 | 17,014,388 | 22,298,479 |
| 2081 | 16,864,906 | 22,565,373 |
| 2080 | 16,708,761 | 22,836,875 |
| 2079 | 16,556,341 | 23,113,773 |
| 2078 | 16,396,395 | 23,393,434 |
| 2077 | 16,228,166 | 23,679,569 |
| 2076 | 16,055,590 | 23,968,050 |
| 2075 | 15,881,626 | 24,259,763 |
| 2074 | 15,710,778 | 24,554,480 |
| 2073 | 15,530,355 | 24,852,006 |
| 2072 | 15,350,553 | 25,149,886 |
| 2071 | 15,162,785 | 25,447,869 |
| 2070 | 14,968,105 | 25,745,140 |
| 2069 | 14,772,746 | 26,042,079 |
| 2068 | 14,575,859 | 26,337,963 |
| 2067 | 14,373,538 | 26,632,110 |
| 2066 | 14,170,754 | 26,923,643 |
| 2065 | 13,967,146 | 27,211,946 |
| 2064 | 13,761,777 | 27,497,263 |
| 2063 | 13,548,616 | 27,778,871 |
| 2062 | 13,336,037 | 28,055,433 |
| 2061 | 13,123,628 | 28,328,948 |
| 2060 | 12,906,496 | 28,597,687 |
| 2059 | 12,688,037 | 28,864,377 |
| 2058 | 12,467,461 | 29,125,961 |
| 2057 | 12,245,441 | 29,384,759 |
| 2056 | 12,023,522 | 29,641,101 |
| 2055 | 11,801,006 | 29,893,868 |
| 2054 | 11,578,020 | 30,142,942 |
| 2053 | 11,354,432 | 30,389,214 |
| 2052 | 11,131,786 | 30,630,763 |
| 2051 | 10,910,913 | 30,871,146 |
| 2050 | 10,689,058 | 31,107,894 |
| 2049 | 10,471,199 | 31,341,718 |
| 2048 | 10,252,433 | 31,572,273 |
| 2047 | 10,037,332 | 31,800,868 |
| 2046 | 9,822,499 | 32,026,873 |
| 2045 | 9,608,962 | 32,250,757 |
| 2044 | 9,397,018 | 32,471,522 |
| 2043 | 9,188,292 | 32,690,423 |
| 2042 | 8,982,316 | 32,906,811 |
| 2041 | 8,777,138 | 33,118,473 |
| 2040 | 8,570,085 | 33,328,426 |
| 2039 | 8,360,267 | 33,535,096 |
| 2038 | 8,151,599 | 33,738,091 |
| 2037 | 7,944,754 | 33,936,906 |
| 2036 | 7,736,415 | 34,133,190 |
| 2035 | 7,527,731 | 34,323,827 |
| 2034 | 7,316,613 | 34,511,159 |
| 2033 | 7,106,984 | 34,693,880 |
| 2032 | 6,898,917 | 34,872,593 |
| 2031 | 6,691,778 | 35,046,775 |
| 2030 | 6,488,327 | 35,213,577 |
| 2029 | 6,287,899 | 35,374,919 |
| 2028 | 6,086,983 | 35,527,083 |
| 2027 | 5,892,506 | 35,671,012 |
| 2026 | 5,702,177 | 35,806,942 |
| 2025 | 5,514,692 | 36,233,346 |
| 2024 | 5,330,690 | 36,559,233 |
| 2023 | 5,152,421 | 36,687,353 |
| 2022 | 5,098,039 | 36,821,749 |
| 2021 | 5,112,100 | 36,981,559 |
| 2020 | 5,026,628 | 37,515,748 |
| 2019 | 4,944,703 | 37,965,475 |
| 2018 | 4,878,657 | 37,974,750 |
| 2017 | 4,793,511 | 37,974,826 |
| 2016 | 4,713,663 | 37,970,087 |
| 2015 | 4,629,320 | 37,986,412 |
| 2014 | 4,623,182 | 38,011,735 |
| 2013 | 4,642,419 | 38,040,196 |
| 2012 | 4,610,848 | 38,063,164 |
| 2011 | 4,565,021 | 38,063,255 |
| 2010 | 4,492,995 | 38,042,794 |
| 2009 | 4,529,047 | 38,151,603 |
| 2008 | 4,558,984 | 38,125,759 |
| 2007 | 4,462,770 | 38,120,560 |
| 2006 | 4,377,579 | 38,141,267 |
| 2005 | 4,288,810 | 38,165,445 |
| 2004 | 4,192,826 | 38,182,222 |
| 2003 | 4,103,086 | 38,204,570 |
| 2002 | 4,006,077 | 38,230,364 |
| 2001 | 3,919,487 | 38,248,076 |
| 2000 | 3,833,416 | 38,258,629 |
| 1999 | 3,729,450 | 38,660,271 |
| 1998 | 3,628,827 | 38,663,481 |
| 1997 | 3,531,700 | 38,649,660 |
| 1996 | 3,435,965 | 38,624,370 |
| 1995 | 3,348,052 | 38,594,998 |
| 1994 | 3,257,954 | 38,542,652 |
| 1993 | 3,157,839 | 38,461,408 |
| 1992 | 3,058,831 | 38,363,667 |
| 1991 | 2,963,191 | 38,246,193 |
| 1990 | 2,871,910 | 38,110,782 |
| 1989 | 2,783,970 | 37,961,529 |
| 1988 | 2,713,965 | 37,824,487 |
| 1987 | 2,669,155 | 37,668,045 |
| 1986 | 2,634,258 | 37,456,119 |
| 1985 | 2,600,932 | 37,201,885 |
| 1984 | 2,568,610 | 36,904,134 |
| 1983 | 2,537,399 | 36,571,808 |
| 1982 | 2,507,375 | 36,230,481 |
| 1981 | 2,478,402 | 35,898,587 |
| 1980 | 2,450,535 | 35,574,150 |
| 1979 | 2,423,794 | 35,247,217 |
| 1978 | 2,397,961 | 34,965,600 |
| 1977 | 2,372,930 | 34,689,050 |
| 1976 | 2,348,566 | 34,356,300 |
| 1975 | 2,313,916 | 34,015,199 |
| 1974 | 2,269,338 | 33,678,899 |
| 1973 | 2,226,008 | 33,357,200 |
| 1972 | 2,183,769 | 33,055,650 |
| 1971 | 2,141,450 | 32,783,500 |
| 1970 | 2,097,505 | 32,664,300 |
| 1969 | 2,051,515 | 32,548,300 |
| 1968 | 2,005,100 | 32,294,655 |
| 1967 | 1,960,444 | 31,987,155 |
| 1966 | 1,918,082 | 31,681,000 |
| 1965 | 1,877,854 | 31,444,950 |
| 1964 | 1,839,583 | 31,139,450 |
| 1963 | 1,803,063 | 30,712,000 |
| 1962 | 1,768,115 | 30,308,500 |
| 1961 | 1,734,580 | 29,964,000 |
| 1960 | 1,702,346 | 29,637,450 |
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/central-african-republic/poland | CC BY 
From 2006 to 2016, the population of the Central African Republic increased by 336,084 people (a 7.68% growth), while Poland lost 171,180 people (a 0.45% decline).
For the next 10 years, from 2016 to 2026, the Central African Republic gained 1,039,996 people (a 22.1% growth), while Poland's population decreased by 2,163,145 people (a 5.7% decline).
The Central African Republic was ranked 118th most populous country in 2006 and is still 118th in 2026. Poland was ranked 32nd in 2006 and ranked 47th now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) the Central African Republic's population will grow by 85.8% to 10,689,058 people with a rank change from 118th to 96th. The population of Poland will decrease by 13.1% to 31,107,894 people and rank change from 47th to 62nd.
The Central African Republic is projected to reach its peak in 2100 at 19.1M people, while Poland's population already peaked in 1998 at 38.7M people and is projected to decrease to 18.4M people by 2100.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
CAR
|
Poland
|
|
| 2100 | 0.42% | -1.03% |
| 2099 | 0.45% | -1.03% |
| 2098 | 0.45% | -1.03% |
| 2097 | 0.49% | -1.03% |
| 2096 | 0.53% | -1.03% |
| 2095 | 0.54% | -1.03% |
| 2094 | 0.55% | -1.04% |
| 2093 | 0.59% | -1.05% |
| 2092 | 0.61% | -1.06% |
| 2091 | 0.65% | -1.07% |
| 2090 | 0.64% | -1.08% |
| 2089 | 0.69% | -1.09% |
| 2088 | 0.72% | -1.11% |
| 2087 | 0.77% | -1.12% |
| 2086 | 0.77% | -1.13% |
| 2085 | 0.81% | -1.14% |
| 2084 | 0.85% | -1.16% |
| 2083 | 0.88% | -1.17% |
| 2082 | 0.89% | -1.18% |
| 2081 | 0.93% | -1.19% |
| 2080 | 0.92% | -1.2% |
| 2079 | 0.98% | -1.2% |
| 2078 | 1.04% | -1.21% |
| 2077 | 1.07% | -1.2% |
| 2076 | 1.1% | -1.2% |
| 2075 | 1.09% | -1.2% |
| 2074 | 1.16% | -1.2% |
| 2073 | 1.17% | -1.18% |
| 2072 | 1.24% | -1.17% |
| 2071 | 1.3% | -1.15% |
| 2070 | 1.32% | -1.14% |
| 2069 | 1.35% | -1.12% |
| 2068 | 1.41% | -1.1% |
| 2067 | 1.43% | -1.08% |
| 2066 | 1.46% | -1.06% |
| 2065 | 1.49% | -1.04% |
| 2064 | 1.57% | -1.01% |
| 2063 | 1.59% | -0.99% |
| 2062 | 1.62% | -0.97% |
| 2061 | 1.68% | -0.94% |
| 2060 | 1.72% | -0.92% |
| 2059 | 1.77% | -0.9% |
| 2058 | 1.81% | -0.88% |
| 2057 | 1.85% | -0.86% |
| 2056 | 1.89% | -0.85% |
| 2055 | 1.93% | -0.83% |
| 2054 | 1.97% | -0.81% |
| 2053 | 2% | -0.79% |
| 2052 | 2.02% | -0.78% |
| 2051 | 2.08% | -0.76% |
| 2050 | 2.08% | -0.75% |
| 2049 | 2.13% | -0.73% |
| 2048 | 2.14% | -0.72% |
| 2047 | 2.19% | -0.71% |
| 2046 | 2.22% | -0.69% |
| 2045 | 2.26% | -0.68% |
| 2044 | 2.27% | -0.67% |
| 2043 | 2.29% | -0.66% |
| 2042 | 2.34% | -0.64% |
| 2041 | 2.42% | -0.63% |
| 2040 | 2.51% | -0.62% |
| 2039 | 2.56% | -0.6% |
| 2038 | 2.6% | -0.59% |
| 2037 | 2.69% | -0.58% |
| 2036 | 2.77% | -0.56% |
| 2035 | 2.89% | -0.54% |
| 2034 | 2.95% | -0.53% |
| 2033 | 3.02% | -0.51% |
| 2032 | 3.1% | -0.5% |
| 2031 | 3.14% | -0.47% |
| 2030 | 3.19% | -0.46% |
| 2029 | 3.3% | -0.43% |
| 2028 | 3.3% | -0.4% |
| 2027 | 3.34% | -0.38% |
| 2026 | 3.4% | -1.18% |
| 2025 | 3.45% | -0.89% |
| 2024 | 3.46% | -0.35% |
| 2023 | 1.07% | -0.36% |
| 2022 | -0.28% | -0.43% |
| 2021 | 1.7% | -1.42% |
| 2020 | 1.66% | -1.18% |
| 2019 | 1.35% | -0.02% |
| 2018 | 1.78% | -0% |
| 2017 | 1.69% | 0.01% |
| 2016 | 1.82% | -0.04% |
| 2015 | 0.13% | -0.07% |
| 2014 | -0.41% | -0.07% |
| 2013 | 0.68% | -0.06% |
| 2012 | 1% | -0% |
| 2011 | 1.6% | 0.05% |
| 2010 | -0.8% | -0.29% |
| 2009 | -0.66% | 0.07% |
| 2008 | 2.16% | 0.01% |
| 2007 | 1.95% | -0.05% |
| 2006 | 2.07% | -0.06% |
| 2005 | 2.29% | -0.04% |
| 2004 | 2.19% | -0.06% |
| 2003 | 2.42% | -0.07% |
| 2002 | 2.21% | -0.05% |
| 2001 | 2.25% | -0.03% |
| 2000 | 2.79% | -1.04% |
| 1999 | 2.77% | -0.008% |
| 1998 | 2.75% | 0.04% |
| 1997 | 2.79% | 0.07% |
| 1996 | 2.63% | 0.08% |
| 1995 | 2.77% | 0.14% |
| 1994 | 3.17% | 0.21% |
| 1993 | 3.24% | 0.25% |
| 1992 | 3.23% | 0.31% |
| 1991 | 3.18% | 0.36% |
| 1990 | 3.16% | 0.39% |
| 1989 | 2.58% | 0.36% |
| 1988 | 1.68% | 0.42% |
| 1987 | 1.32% | 0.57% |
| 1986 | 1.28% | 0.68% |
| 1985 | 1.26% | 0.81% |
| 1984 | 1.23% | 0.91% |
| 1983 | 1.2% | 0.94% |
| 1982 | 1.17% | 0.92% |
| 1981 | 1.14% | 0.91% |
| 1980 | 1.1% | 0.93% |
| 1979 | 1.08% | 0.81% |
| 1978 | 1.05% | 0.8% |
| 1977 | 1.04% | 0.97% |
| 1976 | 1.5% | 1% |
| 1975 | 1.96% | 1% |
| 1974 | 1.95% | 0.96% |
| 1973 | 1.93% | 0.91% |
| 1972 | 1.98% | 0.83% |
| 1971 | 2.1% | 0.36% |
| 1970 | 2.24% | 0.36% |
| 1969 | 2.31% | 0.79% |
| 1968 | 2.28% | 0.96% |
| 1967 | 2.21% | 0.97% |
| 1966 | 2.14% | 0.75% |
| 1965 | 2.08% | 0.98% |
| 1964 | 2.03% | 1.39% |
| 1963 | 1.98% | 1.33% |
| 1962 | 1.93% | 1.15% |
| 1961 | 1.89% | 1.1% |
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/central-african-republic/poland | CC BY
In 2024, the population of the Central African Republic grew by 3.46%, while Poland's population declined by 0.35%.
Live population counters
|
CAR
|
Poland
|
|
|---|---|---|
| Current population |
5753659
|
35806942
|
| Population rank | 118/197 | 47/197 |
| Percent of world population | 0.07% | 0.43% |
| One net population change |
2.95 minutes
|
4.1 minutes
|
| One birth every |
2.2 minutes
|
1.94 minutes
|
| One death every |
10.8 minutes
|
1.29 minutes
|
| Daily growth/decline | +488 | -351 |
| Annual growth/decline | +178,269 | -128,120 |
| Annual growth/decline rate | +3.46% | -0.35% |
| Population growth rate rank | 9/197 | 181/197 |
| One migration net change every |
35.9 minutes
|
1.59 minutes
|
| Annual migration change | -14,693 | -330,820 |
| Net migration rank | 143/196 | 191/196 |
| Foreign-born residents | 94,556 | 1,739,901 |
| Foreign-born residents rank | 132/195 | 41/195 |
| Foreign-born share of population | 1.8% | 4.5% |
| Foreign-born share rank | 135/195 | 97/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
CAR
|
Poland
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -14,693 | - | -330,820 |
| 2024 | - | -15,357 | - | -238,062 |
| 2023 | 190,325 | -14,682 | -135,743 | -7,824 |
| 2022 | -49,456 | -17,430 | -143,605 | 967,744 |
| 2021 | 124,408 | -85,646 | -184,907 | 2,251 |
| 2020 | 156,911 | -24,745 | -120,050 | 3,920 |
| 2019 | 68,523 | -36,849 | -34,169 | 7,696 |
| 2018 | 153,361 | -52,954 | -26,582 | -223 |
| 2017 | 128,461 | -58,584 | 0 | -21,535 |
| 2016 | 142,419 | -52,607 | -3,797 | -5,675 |
| 2015 | 141,912 | -63,045 | -26,590 | 3,887 |
| 2014 | 107,448 | -174,051 | 0 | 5,525 |
| 2013 | 140,489 | -112,382 | -19,020 | 12,402 |
| 2012 | 146,791 | -111,764 | 0 | 4,635 |
| 2011 | 142,913 | -86,281 | 11,419 | 45,951 |
| 2010 | 130,539 | -43,126 | 38,043 | 119,623 |
| 2009 | -130,613 | -28,899 | 30,521 | -8,283 |
| 2008 | 128,627 | -28,983 | 34,313 | -42,288 |
| 2007 | 123,137 | -30,352 | 11,436 | -51,235 |
| 2006 | 118,882 | -41,282 | 3,814 | -68,882 |
| 2005 | 113,534 | -13,604 | -3,817 | -41,942 |
| 2004 | 108,548 | -16,510 | -7,637 | -38,216 |
| 2003 | 105,540 | -18,097 | -15,281 | -19,039 |
| 2002 | 100,588 | 5,992 | -3,823 | -16,462 |
| 2001 | 99,598 | -33,006 | 3,825 | -16,648 |
| 2000 | 97,468 | 8,079 | 11,478 | -15,921 |
| 1999 | 96,108 | 6,284 | 0 | -53,035 |
| 1998 | 94,361 | 4,479 | 19,332 | -39,509 |
| 1997 | 93,378 | 2,034 | 34,785 | -44,230 |
| 1996 | 93,369 | 2,697 | 42,487 | -45,349 |
| 1995 | 92,748 | -12,986 | 46,314 | -52,989 |
| 1994 | 90,943 | 9,496 | 96,357 | -41,845 |
| 1993 | 89,873 | 9,930 | 103,846 | -48,805 |
| 1992 | 88,939 | 9,269 | 118,928 | -46,893 |
| 1991 | 88,688 | 4,381 | 141,511 | -55,342 |
| 1990 | 87,507 | 1,995 | 160,066 | -50,339 |
| 1989 | 85,969 | 409 | 182,215 | -49,192 |
| 1988 | 84,654 | -31,016 | 215,599 | -101,671 |
| 1987 | 83,408 | -47,428 | 226,008 | -32,310 |
| 1986 | 81,149 | -47,332 | 258,448 | -22,520 |
| 1985 | 79,266 | -46,427 | 297,615 | -27,277 |
| 1984 | 77,395 | -45,591 | 332,137 | -18,402 |
| 1983 | 75,399 | -44,780 | 373,032 | -26,724 |
| 1982 | 73,330 | -43,908 | 369,551 | -34,980 |
| 1981 | 71,391 | -42,872 | 351,806 | -16,155 |
| 1980 | 68,759 | -41,539 | 348,627 | -42,420 |
| 1979 | 66,104 | -39,850 | 366,571 | -22,162 |
| 1978 | 63,285 | -37,874 | 339,166 | -62,936 |
| 1977 | 60,436 | -35,782 | 353,828 | -33,496 |
| 1976 | 57,725 | -33,645 | 367,612 | -25,716 |
| 1975 | 55,106 | -9,895 | 350,356 | -31,346 |
| 1974 | 53,777 | -9,838 | 346,893 | -18,273 |
| 1973 | 52,525 | -9,800 | 320,229 | -29,335 |
| 1972 | 51,390 | -9,634 | 314,028 | -15,004 |
| 1971 | 50,142 | -7,259 | 278,660 | -31,767 |
| 1970 | 48,690 | -3,693 | 280,913 | -66,859 |
| 1969 | 47,066 | -80 | 270,151 | -26,744 |
| 1968 | 45,377 | 474 | 280,963 | -11,905 |
| 1967 | 42,979 | 474 | 275,089 | -25,479 |
| 1966 | 40,804 | 474 | 297,801 | -17,158 |
| 1965 | 38,710 | 474 | 314,450 | -21,658 |
| 1964 | 36,878 | 474 | 326,965 | -23,273 |
| 1963 | 35,218 | 474 | 359,330 | -13,770 |
| 1962 | 33,731 | 474 | 360,671 | -31,021 |
| 1961 | 32,383 | 474 | 398,521 | -20,044 |
| 1960 | 31,131 | 474 | 444,562 | -6,306 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).
GeoRank.org/population/central-african-republic/poland | CC BY
Over the last 10 years, 66.7% of the population change in the Central African Republic is from natural causes (a gain of 1,164,312 people) and 33.3% is from migration (a loss of 580,593 people). In Poland 41.4% is from natural causes (a loss of 675,443 people) and 58.6% is from migration (a gain of 955,766 people).
As of 2024, 94,556 residents or 1.8% of the population were not native-born in the Central African Republic, compared to 1,739,901 people or 4.5% in Poland.
Biggest cities by population
Compare countries by 7 more topics
Population differences between the Central African Republic and Poland
|
CAR
|
Poland
|
|
|---|---|---|
| Life expectancy | 58.2 years | 79.2 years |
| Average age | 19.8 years | 42.7 years |
| Median age | 15.4 years | 42.9 years |
| Male:Female ratio | 48:52 | 48.4:51.6 |
| Fertility rate | 6.01 births per woman | 1.16 births per woman |
| Population density | 23.7 ppl/mi² | 303 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/central-african-republic/poland | 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.