| Chapel Hill Primary School & Nursery150736 | Primary | — | 7.6% | 356 |
| Chancellor Park Primary School, Chelmsford133661 | Primary | Outstanding | 9.6% | 209 |
| Cedar Hall School115457 | Not applicable | Requires Improvement | 30.7% | 189 |
| Castledon School141765 | Not applicable | Outstanding | 44.6% | 239 |
| Castle View School147031 | Secondary | Requires Improvement | 28.9% | 1,098 |
| Canvey Junior School114822 | Primary | Good | 25.1% | 239 |
| Canvey Island Infant School and Nursery114980 | Primary | Good | 13.4% | 216 |
| Cann Hall Primary School138911 | Primary | Good | 22.9% | 415 |
| Canewdon Church of England Primary School149618 | Primary | Requires Improvement | 25.6% | 90 |
| Camulos Academy141950 | Primary | Good | 16.7% | 406 |
| Cambian Great Dunmow School149357 | Not applicable | — | — | 15 |
| Buttsbury Primary School136734 | Primary | Outstanding | 3.8% | 863 |
| Burrsville Infant Academy139808 | Primary | Good | 26.4% | 174 |
| Burnt Mill Academy137694 | Secondary | Good | 27.6% | 959 |
| Burnham-on-Crouch Primary School114821 | Primary | Outstanding | 24.5% | 421 |
| Buckhurst Hill Community Primary School147561 | Primary | Good | 18.3% | 389 |
| Broomgrove Junior School114759 | Primary | Good | 19.8% | 212 |
| Broomgrove Infant School114756 | Primary | Good | 17.1% | 158 |
| Broomfield Primary School115292 | Primary | Good | 17.0% | 417 |
| Briscoe Primary School & Nursery138404 | Primary | Good | 50.6% | 335 |
| Brinkley Grove Primary School131219 | Primary | Good | 24.8% | 403 |
| Brightside Primary School132164 | Primary | Good | 9.0% | 621 |
| Brightlingsea Primary School and Nursery114755 | Primary | Good | 21.3% | 653 |
| Brentwood Ursuline Convent High School138834 | Secondary | Good | 10.0% | 991 |
| Brentwood School115429 | Not applicable | — | — | 1,853 |
| Brentwood County High School145474 | Secondary | Expected standard | 21.0% | 1,097 |
| Braiswick Primary School140396 | Primary | Good | 15.0% | 419 |
| Bradfield Primary School114735 | Primary | Good | 14.4% | 111 |
| Boxted St Peter's Church of England School115072 | Primary | Good | 6.8% | 206 |
| Boreham Primary School114937 | Primary | Good | 20.3% | 212 |
| Bocking Primary School148305 | Primary | Good | 15.8% | 203 |
| Bmat Stem Academy145931 | Secondary | Good | 34.9% | 240 |
| Blackmore Primary School114929 | Primary | Good | 10.8% | 166 |
| Birchanger Church of England Voluntary Controlled Primary School115127 | Primary | Good | 10.8% | 93 |
| Birch Church of England Voluntary Aided Primary School115138 | Primary | Good | 10.5% | 124 |
| Bentley St Paul's Church of England Primary School149971 | Primary | Good | 5.0% | 202 |
| Bentfield Primary School and Nursery114978 | Primary | Good | 9.0% | 208 |
| Belchamp St Paul Church of England Primary School144866 | Primary | Good | 6.5% | 46 |
| Beehive Lane Community Primary School114996 | Primary | Outstanding | 12.0% | 210 |
| Beckmead Moundwood Academy148008 | Not applicable | Good | 60.0% | 65 |
| Becket Keys Church of England Free School138239 | Secondary | Outstanding | 10.1% | 1,152 |
| Beckers Green Primary School147816 | Primary | Good | 31.2% | 317 |
| Beauchamps High School115322 | Secondary | Good | 12.6% | 1,486 |
| Baynards Primary School114767 | Primary | Expected standard | 41.8% | 98 |
| Barnes Farm Primary School146000 | Primary | Good | 16.5% | 539 |
| Barling Magna Primary Academy143948 | Primary | Good | 22.2% | 167 |
| Bardfield Academy143203 | Primary | Requires Improvement | 49.1% | 421 |
| Baddow Hall Junior School114913 | Primary | Good | 17.1% | 234 |
| Baddow Hall Infant School114898 | Primary | Good | 9.6% | 166 |
| Athena School150238 | Not applicable | — | — | 2 |