2018 Tax rates (Combined Municipal & Education)
| Property Class | Sarnia , ON | Windsor, ON |
Chatham-Kent, ON | St. Thomas, ON |
| Residential | 1.5255% | 1.8135% | 1.8635% | 1.5332% |
| Commercial – Occupied | 3.5456% | 4.6577% | 4.6430% | 3.9949% |
| New Commercial | 3.2956% | 4.3930% | 3.7449% | |
| Office Building – Occupied | 3.4218% | 4.6577% | 3.7519% | 3.9949% |
| Office Building (New Construction) | 3.1718% | 4.4077% | 3.7519% | N/A |
| Industrial – Occupied | 4.1155% | 5.1529% | 4.9164% | 4.3774% |
| Industrial – Excess Land | 2.6751% | 3.6070% | 3.1956% | 2.8453% |
| Industrial – Vacant Land | 2.6751% | 3.6070% | 3.1956% | 2.8453% |
| New Industrial | 3.8655% | 4.9029% | 4.6664% | 4.1274% |
| New Industrial – Excess Land | 2.5126% | 3.4320% | 3.0332% | N/A |
| Large Industrial – Occupied | 5.4113% | 6.1688% | 4.9164% | 4.9899% |
| Large Industrial – Excess Land | 3.5173% | 4.3181% | 3.1957% | 3.2434% |
| New Large Industrial – Occupied | 5.1613% | N/A | 4.6664% | N/A |