| Caistor Yarborough Academy136958 | Secondary | Good | 25.7% | 611 |
| Caistor Grammar School136350 | Secondary | Good | 6.3% | 669 |
| Caistor CofE and Methodist Primary School120590 | Primary | Good | 23.9% | 209 |
| Bythams Primary School120506 | Primary | Requires Improvement | 40.4% | 52 |
| Burton Hathow Preparatory School139235 | Not applicable | — | — | 103 |
| Bucknall Primary School120443 | Primary | Good | 44.1% | 34 |
| Brown's Church of England Primary School143258 | Primary | Good | 35.9% | 64 |
| Bridge House Independent School139264 | Not applicable | — | — | 86 |
| Brant Broughton Church of England and Methodist Primary School120594 | Primary | Requires Improvement | 20.0% | 70 |
| Branston Junior Academy138486 | Primary | Good | 23.4% | 175 |
| Branston Community Academy136358 | Secondary | Requires Improvement | 22.5% | 1,152 |
| Branston Church of England Infant Academy144122 | Primary | Outstanding | 15.9% | 132 |
| Bracebridge Infant and Nursery School139142 | Primary | Good | 26.2% | 86 |
| Bracebridge Heath St John's Primary Academy137794 | Primary | Good | 15.0% | 367 |
| Bourne Westfield Primary Academy137599 | Primary | Good | 13.3% | 693 |
| Bourne Grammar School137793 | Secondary | Good | 6.4% | 1,740 |
| Bourne Elsea Park Church of England Primary Academy140214 | Primary | Good | 18.5% | 270 |
| Bourne Academy137572 | Secondary | Good | 23.3% | 1,571 |
| Bourne Abbey Church of England Primary Academy136354 | Primary | Good | 26.0% | 696 |
| Boston West Academy138291 | Primary | Good | 23.6% | 415 |
| Boston Pioneers Free School Academy139597 | Primary | Good | 36.9% | 415 |
| Boston Nursery School126564 | Nursery | Good | 0.0% | 81 |
| Boston High School139140 | Secondary | Good | 11.9% | 816 |
| Boston Endeavour Academy142666 | Not applicable | Good | 49.6% | 157 |
| Boston College130761 | 16 plus | — | — | — |
| Blyton Cum Laughton Church of England School120619 | Primary | Good | 40.0% | 130 |
| Bishop Grosseteste University133835 | Not applicable | — | — | — |
| Binbrook CofE Primary School120565 | Primary | Good | 47.6% | 82 |
| Billingborough Primary School151274 | Primary | Good | 21.2% | 113 |
| Benjamin Adlard Primary School138063 | Primary | Good | 66.7% | 232 |
| Belton Lane Community Primary School120392 | Primary | Good | 41.0% | 307 |
| Belmont Community Primary School120401 | Primary | Requires Improvement | 36.0% | 203 |
| Beacon Primary Academy139702 | Primary | Good | 36.9% | 206 |
| Baston CE Primary School120514 | Primary | Good | 8.7% | 184 |
| Bassingham Primary School145437 | Primary | Good | 16.3% | 166 |
| Barrowby Church of England Primary School120513 | Primary | Outstanding | 12.9% | 240 |
| Barkston and Syston CofE Primary School120689 | Primary | Good | 16.8% | 95 |
| Bardney Church of England and Methodist Primary School120589 | Primary | Good | 37.7% | 183 |
| Ayscoughfee Hall School120731 | Not applicable | — | — | 120 |
| Athena School131277 | Not applicable | Good | 56.8% | 118 |
| Aspiration House School148189 | Not applicable | — | — | 9 |
| Ancaster CofE Primary School120512 | Primary | Good | 22.8% | 197 |
| Allington with Sedgebrook Church of England Primary School120511 | Primary | Good | 11.6% | 95 |
| Alford Primary School120440 | Primary | Good | 42.0% | 312 |
| Aegir - A Specialist Academy142136 | Not applicable | Good | 60.7% | 141 |
| Acorn Free School139774 | Not applicable | Good | 0.0% | 0 |
| Acacia School151916 | Not applicable | — | — | — |