Unnamed
0–30
This population is so small, there is no name for it.
Hamlet
30–50
Can also be called a “band.”
None
Village
50–100
Can also be called a “tribe.”
Small Town
100–1,000
Vatican City
Vernon, California
Medium Town
1,000–10,000
Christmas Island, the Falkland Islands, Montserrat
Hood River, Oregon
Large Town
10,000–100,000
Monaco, Liechtenstein, Greenland, Bermuda, Seychelles
Springfield, Oregon (Fictional)
City
100,000–300,000
Guam, Samoa, Barbados
Independence, Missouri
Peoria, Illinois
Large City
300,000–1,000,000
Iceland, Luxembourg, Guyana, Cyprus, Fiji
Pittsburgh, Pennsylvania
Metropolis
1,000,000–3,000,000
Estonia, Qatar, Jamaica, Armenia
Chicago, Illinois
San Jose, California
Conurbation
3,000,000–10,000,000
Ireland, New Zealand, Palestine, Norway, Israel
Gotham City, New Jersey (Fictional)
Los Angeles, California
New York City, New York
Megalopolis
10,000,000–3.4B
Canada, the United States, India, China
Metropolis, Delaware (Fictional)
Ecumenopolis
3.4B–10B
This encompasses the largest possible population of our Earth. It is capped at ten billion people for this reason.
None