There are currently 26 schools registered with the Eco-Schools programme in the Comhairle nan Eilean Siar area.
| School Name | Location | Postcode | Green Flag Award |
|---|---|---|---|
| Bernera Primary School | Isle of Lewis | HS2 9LT | |
| Bun Sgoil Lacasdail | Isle of Lewis | HS2 0DY |  |
| Bun Sgoil Steornabhaigh | Isle of Lewis | HS1 2HP | |
| Bun Sgoil Tholastaidh | North Tolsta | HS2 0NH | |
| Bun Sgoil Uige | Isle of Lewis | HS2 9JE | |
| Bun-Sgoil Thunga | Isle of Lewis | HS2 0HJ | |
| Cothrom Og | South Uist | HS8 5SB | |
| Leverhulme Memorial School | Isle of Harris | HS5 3TS | |
| Lionel Primary School | Isle of Lewis | HS2 0XD | |
| Nicolson Institute | Stornoway | HS1 2PZ | |
| Pairc Playgroup | Isle of Lewis | HS2 9QA | |
| Sgoil a'Bhac | Back | HS2 0LB | |
| Sgoil an Iochdair | South Uist | HS8 5RQ | |
| Sgoil An Rubha | Point | HS2 0PX | |
| Sgoil an Taobh Siar | Isle of Lewis | HS2 0AR | |
| Sgoil Bhagh a' Chaisteil | Isle of Barra | HS9 5XD | |
| Sgoil Bhaile a' Mhanaich | Isle of Benbecula | HS7 5LS | |
| Sgoil Bhreascleit | Isle of Lewis | HS2 9ED | |
| Sgoil Dhalabroig | Isle of South Uist | HS8 5SS | |
| Sgoil Eolaigearraidh | Isle of Barra | HS9 5YD | |
| Sgoil Lionacleit | Benbecula | HS7 5PJ | |
| Sgoil na Pairc | Isle of Lewis | HS2 9QX | |
| Sgoil nan Loch | Leurbost | HS2 9PE | |
| Sgoil Shiaboist | Isle of Lewis | HS2 9BQ | |
| Sgoil Uibhist a Tuath | North Uist | HS6 5DS | |
| Sir E Scott School | Isle of Harris | HS3 3BG |
