Variant of Standard Geographical Classification (SGC) 2021 for North and South
- S - South
- 35S - Southern Ontario
- 3509 - Lanark
- 3509001 - Montague
- 3509004 - Smiths Falls
- 3509010 - Drummond/North Elmsley
- 3509015 - Tay Valley
- 3509021 - Perth
- 3509024 - Beckwith
- 3509028 - Carleton Place
- 3509030 - Mississippi Mills
- 3509039 - Lanark Highlands
- S - South
- 35S - Southern Ontario
- 3509 - Lanark
- 3509001 - Montague
- 3509004 - Smiths Falls
- 3509010 - Drummond/North Elmsley
- 3509015 - Tay Valley
- 3509021 - Perth
- 3509024 - Beckwith
- 3509028 - Carleton Place
- 3509030 - Mississippi Mills
- 3509039 - Lanark Highlands
- Date modified: