| Postal Code | L1B 1G9 |
| City | Newcastle |
| Province | Ontario (ON) |
| Coordinates | 43.9160000, -78.5953000 |
| Population | 53 |
| FSA (Forward Sortation Area) | L1B |
| LDU (Local Delivery Unit) | 1G9 |
| Country | Canada |
Located in Ontario, Canada is home to the sparsely populated community of Newcastle, served by postal code L1B 1G9.
Census data puts the population of this postal code at 53 residents. This is roughly in line with the Ontario average of about 47 residents.
Nearby communities in Ontario include Kleinburg, Schomberg.
The postal code for Newcastle, Ontario is L1B 1G9.
L1B 1G9 is located in Ontario, Canada.
The population of L1B 1G9 (Newcastle) is approximately 53 people.
L1B 1G9 is about average compared to the typical Ontario postal code, which averages around 47 people.
Postal code codes near L1B 1G9 include L0J 0A1, L0J 1C0, L0G 0A1.