Area code 331

General Info

Area code 331 is in Illinois (IL). Popular cities using area code 331 are Aurora, Joliet, Naperville, see full list here

The timezone within area code 331 is (America/Chicago). The current time is 22:18:01

Popular zip codes include 60505(Aurora), 60506(Aurora), 60440(Bolingbrook), see full list here

Area code 331 Map

Here is the full area code map for state Illinois

331

Popular Cities:

City Name State Population Percent of area code in city Percent of city in area code
Aurora Illinois 197899 5 100
Joliet Illinois 147433 0 6
Naperville Illinois 141853 4 100
Bolingbrook Illinois 73366 2 91
Wheaton Illinois 52894 1 100
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Popular Zip Codes:

Zip Code Primary City County State Timezone Population Housing Count
60505 Aurora Kane County Illinois America/Chicago 76573 23262
60506 Aurora Kane County Illinois America/Chicago 53013 18743
60440 Bolingbrook Will County Illinois America/Chicago 52911 17217
60148 Lombard DuPage County Illinois America/Chicago 51468 21662
60126 Elmhurst DuPage County Illinois America/Chicago 46371 17417
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