Niantic, IL zip code
Niantic, Illinois uses one zip code: 62551. Most of it is in Macon County. Together these zip codes are home to about 820 people.
Zip codes
1
Population
820
All zips combined
Largest zip
62551
820 residents
Zip codes in Niantic
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 62551 | 820 | $69,583 |