International Space Station (ISS) Facts and Statistics (2020)



International Space Station (ISS) Facts and Statistics

Here are the more interesting International Space Station (ISS) statistics and fun facts I was able to dig up to get you up to speed. As always, I will be adding more and updating these periodically as I find new stuff. Be sure to check back regularly.

International Space Station (ISS) Statistics and Facts

Please note that some of these International Space Station (ISS) Statistics are easier to find than others, so some of these are based on news reports and not official government tallies. All stats are linked to their source.  In other words: This is the best I can find, but I don't guarantee anything.

International Space Station (ISS) Statistics and Facts

Year the ISS launched:

1998 (it has been continuously occupied since November 2000)


Size of the ISS:

239.4 ft L x 357.5 ft W


Weight of the ISS:

925,335 lbs


Number of countries that collaborated on the ISS:

15 countries


Number of spacewalks at the ISS to date:

227 spacewalks

Last updated 5/31/20


First people to spacewalk at the ISS:

Jerry Ross and James Newman (12/7/98)


Number of people that have visited the ISS:

240 people from 19 countries

Last updated 5/30/20


Breakdown of ISS visitors by geography:

  • US: 151 individuals
  • Russia: 48 individuals
  • Japan: 9 individuals
  • Canada: 8 individuals
  • Italy: 5 individuals
  • France: 4 individuals
  • Germany: 3 individuals
  • Belgium, Netherlands, Sweden, Brazil, Denmark, Kazakhstan, Spain, UK, Malaysia, South Africa, South Korea and UAE: 1 individual each

Last updated 5/30/20 (source)


Number of spacecraft that can be connected to the ISS at the same time

6 spacecraft

Last updated 5/31/20


Astronaut with the longest single stay at the ISS:

Scott Kelly (340 days) 

Last updated 5/31/20


Astronaut with the longest cumulative stay at the ISS:

Peggy Whitson (665 days) 

Last updated 5/31/20

Recent International Space Station (ISS) News:

Last updated:




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