Most Populous Cities in the Roman Empire

Most populous cities within the Roman Empire by century.
According to Wikipedia
Quiz by
charlie07
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Last updated: February 24, 2022
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First submittedFebruary 1, 2020
Times taken2,270
Average score43.5%
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500 BC
24,000
Rome
 
 
400 BC
28,000
Rome
 
 
300 BC
100,000
Rome
 
 
200 BC
150,000
Rome
150,000
Carthage
100,000
Capua
 
 
100 BC
400,000
Rome
100,000
Capua
10,000
Athens
 
 
1 AD
1,000,000
Rome
100,000
Philippi
70,000
Autun
40,000
Pozzuoli
100 AD
1,000,000
Rome
375,000
Alexandria
200,000
Antioch
200,000
Carthage
90,000
Athens
90,000
Syracuse
70,000
Autun
70,000
Corinth
33,000
Ephesus
30,000
Pozzuoli
30,000
London
30,000
Milan
30,000
Thessaloniki
25,000
Augsburg
25,000
Capua
25,000
Lyons
25,000
Ostia
25,000
Salona
20,000
Cologne
12,000
Aquileia
12,000
Carnuntum
10,000
Arles
10,000
Trier
200 AD
1,000,000
Rome
500,000
Alexandria
200,000
Carthage
200,000
Antioch
90,000
Athens
90,000
Syracuse
50,000
London
50,000
Nimes
30,000
Thessaloniki
30,000
Augsburg
30,000
Lyons
30,000
Ostia
25,000
Salona
20,000
Cologne
15,000
Byzantium
12,000
Aquileia
12,000
Carnuntum
10,000
Arles
10,000
Trier
300 AD
800,000
Rome
75,000
Trier
20,000
Byzantium
 
 
400 AD
800,000
Rome
200,000
Constantinople
75,000
Arles
50,000
Milan
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18 Comments
+2
Level 73
Sep 10, 2021
Nice!
+1
Level 99
Sep 10, 2021
very nice quiz. what's your source?
+1
Level 73
Sep 10, 2021
Wikipedia Ill add that
+2
Level 80
Sep 10, 2021
Wow. The crisis of the third century was no joke.

Btw, probably Lugdunum should be changed to Lyon, given that all the other names are given in English (Rome, Milan, Athens...)

+1
Level 73
Sep 10, 2021
Thanks fixed
+1
Level 92
Sep 11, 2021
I don't understand. Why did the population drop so precipitously at that point in time?
+1
Level 48
Dec 27, 2021
Nice quiz, however you seem to have more cities in the west, even though the east was way more urbanized. For example Nicomedia, Nicaea, Miletus, Sardis, Smyrna, Tarsus, Apamea, Emesa, Damascus, Jerusalem etc seem to be missing.
+1
Level 73
Dec 27, 2021
My source is this Wikipedia page

https://en.m.wikipedia.org/wiki/Historical_urban_community_sizes

I’m double checking the statistics, it’s possible I missed these cities, or maybe were for some reason excluded from the Wikipedia page

+1
Level 48
Dec 28, 2021
I see, interesting Wikipedia page!
+1
Level 73
Dec 28, 2021
Indeed
+1
Level 68
Feb 24, 2022
Anyone know what happened to Philippi? Went from 100,000 people in 1 AD to presumably less than 10,000 only 100 years later?
+1
Level 99
Feb 24, 2022
for 300 AD there is an error, population of rome was still 800k. (i checked also with the source you provided).
+1
Level 73
Feb 24, 2022
Thanks for pointing that out, fixed.
+1
Level 87
Feb 24, 2022
Reduce the horizontal padding a bit. 300 and 400 AD are getting cut off on the right side. (Can't see the E in Constantinople!)
+1
Level 73
Feb 24, 2022
Fixed. Thanks for noticing!
+1
Level 79
Feb 24, 2022
No Adrianople? (Erdine)
+1
Level 73
Feb 24, 2022
Not in the source I was using. Its an honor btw to have you comment on my quiz.
+1
Level 73
Nov 13, 2025
really surprised to not see as many of the Gallic cities- would've fully expected Paris, Rouen, Marseille, Narbonne or Bordeaux to at least make the list at some point