distribution
US /ˌdɪs.trɪˈbjuː.ʃən/
UK /ˌdɪs.trɪˈbjuː.ʃən/

1.
the action of sharing something out among a number of recipients
:
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The distribution of food to the needy was organized by volunteers.
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The company handles the distribution of products across the country.
2.
the way in which something is shared out among a group or spread over an area
:
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The population distribution in the city is uneven.
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We need to analyze the wealth distribution in the country.