| Name of School | Total enrolment | Type of School | Status of School | Name of County | Name of Sub County |
| Matondoni secondary school | 133 | Mixed day | Sub County | Lamu | Lamu central |
| Lamu Bujra secondary | 257 | Boarding Boys | Extra County | Lamu | Lamu central |
| Bright Girls Shella Secondary School | 262 | Day | Sub County | Lamu | Lamu central |
| HINDI SEC. SCHOOL | 322 | Day | Sub County | Lamu | LAMU CENTRAL |
| Mokowe Mixed day/boardimg | 410 | Mokowe Mixed day/boarsing | Sub County | Lamu | Lamu central |
| WIYONI SECONDARY SCHOOL | 349 | Day | Sub County | Lamu | LAMU CENTRAL |
| Faza Secondary School | 210 | Mixed day and boarding | County | Lamu | Lamu East |
| SIYU SECONDARY | 144 | Day | Sub County | Lamu | LAMU EAST |
| Kiunga secondary school | 180 | Day | Sub County | Lamu | Lamu East |
| Kizingitini Secondary school | 280 | Day | Sub County | Lamu | LAMU EAST |
| Patte Girls Secondary School | 55 | Day | Sub County | Lamu | Lamu East |
| mpeketoni boys high school | 935 | Boarding Boys | National | Lamu | Lamu west |
| Witu secondary school | 305 | Mixed day and boarding | Sub County | Lamu | Lamu west |
| Uziwa secondary | 245 | Mixed/day | Sub County | Lamu | Lamu west |
| Witu mjini sec. School | 660 | Day | Sub County | Lamu | Lamu west |
| MKUNUMBI SECONDARY SCHOOL | 102 | Mixed day and boarding( girls). | Sub County | Lamu | Lamu west |
| Manda Airport secondary School | 44 | Day | Sub County | Lamu | Lamu west |
| Kiongwe mixed day sec | 315 | Day | Sub County | Lamu | lamu west |
| Lamu Girls Sec School | 570 | Boarding Girls | National | Lamu | Lamu West |
| MAJEMBENI SEC. SCHOOL | 350 | Day | Sub County | Lamu | Lamu West |
| Moa secondary | 74 | Mixed Boarding | Sub County | Lamu | Lamu West |
| BAHARI SECONDARY SCHOOL | 292 | Day | Sub County | Lamu | LAMU WEST |
| Mpeketoni girls high school | 84 | Day | Sub County | Lamu | Lamu west |