''Note: The sources and years from 1810 to 2100 come from this video: When more than 20 countries reach a milestone, such as the 50 million milestone, the sources come from this video: '' This is a list of population milestones by country (and year first reached). Only existing countries are included, not former countries.

20 million milestone

25 million milestone

30 million milestone

35 million milestone

40 million milestone

45 million milestone

50 million milestone

60 million milestone

70 million milestone

80 million milestone

90 million milestone

100 million milestone

# : Unknown, most likely 664 A.D. # : Unknown, most likely 1175 A.D. # : 1914 # : 1948 # : 1965 # : 1967 # : 1972 # : 1988 # : 1988 # : 1992 # : 1999 # : 2014 # : 2016 # : 2019 # : 2021 # : 2023 # : 2038 (est.); # : 2041 (est.) # : 2061 (est.) # : 2062 (est.) # : 2066 (est.) # : 2067 (est.) # : 2075 (est.) # : 2080 (est.) # : 2091 (est.) # : 2095 (est.) # : 2097 (est.)

110 million milestone

# : Unknown, most likely 936 A.D. # : Unknown, most likely 1714 # : 1921 # : 1955 # : 1969 # : 1974 # : 1976 # : 1991 # : 1992 # : 1996 # : 2007 # : 2020 # : 2021 # : 2025 (est.) # : 2027 (est.) # : 2038 (est.) # : 2041 (est.) # : 2052 (est.) # : 2061 (est.) # : 2066 (est.) # : 2067 (est.) # : 2069 (est.) # : 2072 (est.) # : 2086 (est.)

120 million milestone

# : Unknown, most likely 993 A.D. # : Unknown, most likely 1720 # : 1926 # : 1961 # : 1972 # : 1980 # : 1983 # : 1995 # : 1996 # : 2000 # : 2012 # : 2021 # : 2027 (est.) # : 2030 (est.) # : 2031 (est.) # : 2044 (est.) # : 2057 (est.) # : 2070 (est.) # : 2071 (est.) # : 2071 (est.) # : 2075 (est.) # : 2080 (est.) # : 2096 (est.)

130 million milestone

# : Unknown, most likely 1480 # : Unknown, most likely 1731 # : 1938 # : 1971 # : 1976 # : 1985 # : 1999 # : 2001 # : 2004 # : 2021 # : 2027 (est.) # : 2033 (est.) # : 2034 (est.) # : 2037 (est.) # : 2048 (est.) # : 2061 (est.) # : 2076 (est.) # : 2078 (est.) # : 2080 (est.) # : 2082 (est.) # : 2091 (est.)

140 million milestone

# : Unknown, most likely 1610 # : Unknown, most likely 1738 # : 1943 # : 1979 # : 1983 # : 1987 # : 2001 # : 2004 # : 2006 # : 2025 (est.) # : 2031 (est.) # : 2036 (est.) # : 2041 (est.) # : 2042 (est.) # : 2051 (est.) # : 2065 (est.) # : 2080 (est.) # : 2083 (est.) # : 2089 (est.) # : 2096 (est.)

150 million milestone

# : Unknown, most likely 1647 # : Unknown, most likely 1742 # : 1948 # : 1981 # : 1991 # : 1992 # : 2004 # : 2008 # : 2009 # : 2032 (est.) # : 2033 (est.) # : 2039 (est.) # : 2048 (est.) # : 2049 (est.) # : 2054 (est.) # : 2069 (est.) # : 2081 (est.) # : 2084 (est.) # : 2096 (est.)

200 million milestone

# : Unknown, most likely 1761 # : 1855 # : 1967 # : 1997 # : 2012 # : 2018 # : 2019 # : 2038 (est.) # : 2043 (est.) # : 2046 (est.) # : 2069 (est.) # : 2091 (est.)

250 million milestone

# : 1775 # : 1907 # : 1989 # : 2013 # : 2025 (est.) # : 2028 (est.) # : 2063 (est.) # : 2068 (est.) # : 2084 (est.) # : 2109 (est.)

300 million milestone

# : 1795 # : 1934 # : 2006 # : 2032 (est.) https://www.worldometers.info/world-population/indonesia-population/ # : 2035 (est.) # : 2036 (est.) # : 2067 (est.) # : 2072 (est.) # : 2099 (est.)

350 million milestone

# : 1810 # : 1947 # : 2028 (est.) # : 2043 (est.) # : 2054 (est.) # : 2090 (est.) # : 2117 (est.)

400 million milestone

# : 1900 # : 1954 # : 2049 (est.) # : 2056 (est.) # : 2058 (est.) # : 2091 (est.)

450 million milestone

# : 1916 # : 1961 # : 2055 (est.) # : 2104 (est.) # : 2132 (est.)

500 million milestone and over

References

Pre-2003 source

# Populstat historic tables used as source for current nations with dates before 2003, e.g

for each nation listed. {{Population country lists

Milestones A milestone is a marker of distance along roads. Milestone may also refer to: Measurements *Milestone (project management), metaphorically, markers of reaching an identifiable stage in any task or the project *Software release life cycle state, s ...