| L1M 1A4 information | |
|---|---|
| Streets | 8 |
| Province | Ontario |
| Postal District | L |
| Forward sortation areas(FSA) | L1M |
| Local delivery units(LDU) | 1A4 |
| Name | Place | County | Postal Code |
|---|---|---|---|
| Baldwin Street | Whitby | Durham | L1M 1A4 |
| Baldwin Street | Whitby | Durham | L1M 1A4 |
| Campbell Street | Whitby | Durham | L1M 1A4 |
| Cassels Road East | Whitby | Durham | L1M 1A4 |
| Cassels Road East | Whitby | Durham | L1M 1A4 |
| Cassels Road East | Whitby | Durham | L1M 1A4 |
| Cassels Road East | Whitby | Durham | L1M 1A4 |
| Cassels Road West | Whitby | Durham | L1M 1A4 |