24 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 61761 | Normal | 54,075 |
| 61704 | Bloomington | 37,279 |
| 61701 | Bloomington | 35,136 |
| 61705 | Bloomington | 13,213 |
| 61745 | Heyworth | 4,542 |
| 61752 | Le Roy | 4,332 |
| 61753 | Lexington | 2,833 |
| 61748 | Hudson | 2,675 |
| 61736 | Downs | 2,673 |
| 61726 | Chenoa | 2,546 |
| 61744 | Gridley | 2,157 |
| 61732 | Danvers | 2,099 |
| 61728 | Colfax | 1,359 |
| 61776 | Towanda | 1,285 |
| 61754 | McLean | 1,131 |
| 61770 | Saybrook | 1,067 |
| 61774 | Stanford | 949 |
| 61722 | Arrowsmith | 658 |
| 61737 | Ellsworth | 416 |
| 61720 | Anchor | 374 |
| 61724 | Bellflower | 369 |
| 61730 | Cooksville | 361 |
| 61772 | Shirley | 273 |
| 61731 | Cropsey | 76 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 24 ZCTAs in McLean County, Illinois (US Census).