| Name of School | Total enrolment | Type of School | Status of School | Name of County | Name of Sub County |
| Ofafa Jericho High school. | 950 | Boarding Boys | Extra County | Nairobi | Buruburu |
| Nembu Girls | 1007 | Boarding & Day Girls | Extra County | Nairobi | Dagoretti |
| Beth Mugo High School | 863 | Day | Sub County | Nairobi | Dagoretti |
| Ruthimitu mixed secondary | 1132 | Mixed day. Boys boarding | Sub County | Nairobi | Dagoretti |
| Precious blood Riruta | 1005 | Boarding Girls | Extra County | Nairobi | Dagoretti |
| Mutuini High School | 672 | Boys day and boarding | County | Nairobi | Dagoretti |
| Dagoretti mixed secondary school | 1172 | Day | County | Nairobi | Dagoretti |
| Ruthimitu Girls Secondary school | 676 | Boarding Girls | County | Nairobi | Dagoretti |
| LENANA SCHOOL | 1719 | Boarding Boys | National | Nairobi | DAGORETTI SOUTH |
| THE KOMAROCK SCHOOL | 820 | Day | Sub County | Nairobi | EMBAKASI |
| Embakasi Garrison Secondary School | 394 | Day | County | Nairobi | Embakasi |
| Utawala sec school | 336 | Day | Sub County | Nairobi | Embakasi |
| Embakasi Girls | 731 | Day and Boarding | County | Nairobi | Embakasi |
| Kayole south secondary school | 1100 | Day | Sub County | Nairobi | Embakasi |
| KAYOLE SOUTH SECONDARY SCHOOL | 1038 | Day | Sub County | Nairobi | EMBAKASI CENTRAL |
| Our lady of mercy sec shauri moyo | 820 | Boarding Girls | County | Nairobi | Kamukunji |
| Uhuru Secondary school | 480 | Boarding Boys | Extra County | Nairobi | Kamukunji |
| Zawadi mixed secondary school | 365 | Day | Sub County | Nairobi | Kamukunji |
| ST TERESAS BOYS SEC | 548 | Day | Sub County | Nairobi | KAMUKUNJI |
| Kamukunji secondary school | 752 | Mixed Boarding | County | Nairobi | Kamukunji |
| MAINA WANJIGI SECONDARY SCHOOL | 733 | MIxed day and boarding. | County | Nairobi | KAMUKUNJI |
| Moi forces academy Nairobi | 1883 | Boarding Boys | National | Nairobi | Kamukunji |
| Claycity secondary school | 774 | Day | Sub County | Nairobi | Kasarani |
| Mwiki Secondary school | 610 | Mixed day | County | Nairobi | Kasarani |
| Our Lady of Fatima | 893 | Day | Sub County | Nairobi | Kasarani |
| Babadogo secondary school | 745 | Day | County | Nairobi | Kasarani |
| Hon.John Njoroge | 589 | Day | Sub County | Nairobi | Kasarani |
| GITHURAI SECONDARY SCHOOL | 205 | Day | County | Nairobi | KASARANI |
| KIWANJA SECONDARY SCHOOL | 754 | Mixed Day | Sub County | Nairobi | KASARANI |
| Kasarani Treeside Secondary School for the Deaf | 56 | Mixed Boarding | National | Nairobi | Kasarani |
| Kamiti secondary school | 742 | Day | Sub County | Nairobi | Kasarani |
| Kariobangi north girls | 745 | Girls | County | Nairobi | Kasarani |
| Kahawa Garrison secondary school | 738 | Mixed day | Sub County | Nairobi | Kasarani |
| Ruaraka High School | 861 | Day | Sub County | Nairobi | Kasarani |
| Garden Estate Sec sch | 881 | Mixed day and boarding | County | Nairobi | Kasarani |
| Upper Hill | 1580 | Boarding Boys | Extra County | Nairobi | Kibra |
| Shadrack kimalel secondary | 439 | Day | Sub County | Nairobi | Kibra |
| Olympic high school | 946 | Mixed day | County | Nairobi | Kibra |
| Raila Educational Centre | 576 | Mixed Day | Sub County | Nairobi | Kibra |
| MOI GIRLS SCHOOL NAIROBI | 1450 | Girls Boarding/Integrated | Extra County | Nairobi | KIBRA |
| Mbagathi Road Secondary | 452 | Day | Sub County | Nairobi | Kibra |
| KIBERA SECONDARY SCHOOL | 385 | Day | Sub County | Nairobi | KIBRA |
| Langata Barracks Mixed Sec School | 515 | Day | Sub County | Nairobi | LANGATA |
| Karen c Girls Secondary School | 500 | Boarding Girls | County | Nairobi | Langata |
| Langata Boys High School | 759 | Boarding Boys | County | Nairobi | Langata |
| Huruma Girls Sec Sch | 860 | Boarding Girls | Extra County | Nairobi | Makadara |
| Nile Road secondary school | 452 | Day | Sub County | Nairobi | Makadara |
| Star of Hope Secondary School | 500 | Day | Sub County | Nairobi | Makadara |
| Buruburu Girls | 1320 | Boarding Girls | Extra County | Nairobi | Makadara |
| Highway Secondary School | 906 | Boarding Boys | Extra County | Nairobi | Makadara |
| St. Annes Girls Sec School | 610 | Boarding Girls | Extra County | Nairobi | Makadara |
| Aquinas high school | 1200 | Boarding Boys | Extra County | Nairobi | Makadara |
| Makongeni secondary school | 620 | Day | County | Nairobi | Makandara |
| OLM SOUTH B | 720 | Boarding Girls | Extra County | Nairobi | MAKANDARA |
| Huruma Mixed Secondary | 602 | Mixed Day | Sub County | Nairobi | Mathare |
| NDURURUNO SECONDARY SCHOOL | 642 | Day | Sub County | Nairobi | MATHARE |
| St Teresa’s girls secondary | 513 | Boarding Boys | County | Nairobi | Mathare |
| Mathari Mixed Secondary School | 181 | Mixed Day | County | Nairobi | Mathari |
| Dandora girls sec.school | 525 | Day | Sub County | Nairobi | Njiru |
| RUAI Girls Secondary school | 647 | Girls day and boarding | County | Nairobi | Njiru |
| Ruai Boys | 325 | Boarding Boys | County | Nairobi | Njiru |
| Drumvale Secondary School | 370 | Day | Sub County | Nairobi | Njiru |
| MIHANG’O SECONDARY SCHOOL | 378 | Mixed Day | Sub County | Nairobi | NJIRU |
| St. Dominic’s Sec School | 227 | Day | Sub County | Nairobi | Njiru |
| Dr. Mwenje Secondary | 546 | Mixed day | Sub County | Nairobi | Njiru |
| Nileroad special sec shool | 180 | Day | Sub County | Nairobi | Njiru |
| Dandora Secondary | 1079 | Day | Sub County | Nairobi | Njiru |
| PANGANI GIRLS SCHOOL | 1450 | Boarding Girls | National | Nairobi | STAREHE |
| CGHU MIXED SECONDARY SCHOOL | 270 | Day Mixed | County | Nairobi | Starehe |
| Pumwani Boys Secondary school | 687 | Boarding Boys | Extra County | Nairobi | Starehe |
| County Girls High School – Nairobi | 383 | Boarding Girls | County | Nairobi | Starehe |
| NGARA GIRLS HIGH SCHOOL | 1380 | Boarding Girls | Extra County | Nairobi | STAREHE |
| Pumwani Girls Secondary School | 517 | Day | Sub County | Nairobi | Starehe |
| Nairobi school | 2020 | Boarding Boys | National | Nairobi | Westlands |
| Farasi Lane Secondary School | 173 | Mixed Day | Sub County | Nairobi | Westlands |
| The Kenya high school | 1405 | Boarding Girls | National | Nairobi | Westlands |
| Loresho secondary school | 362 | Day | County | Nairobi | Westlands |
| Kangemi High School | 591 | Boarding Boys | Extra County | Nairobi | Westlands |
| NAIROBI MILIMANI SECONDARY SCHOOL | 386 | Boarding Boys | County | Nairobi | WESTLANDS |
| Highridge Girls secondary school | 792 | Boarding Girls | Extra County | Nairobi | Westlands |
| Lavington girl’s secondary. | 657 | Boarding Girls | County | Nairobi | Westlands |
| HOSPITAL HILL HIGH SCHOOL | 867 | Boarding Boys | Extra County | Nairobi | WESTLANDS |
| NORTH HIGHRIDGE SECONDARY | 110 | Mixed day | Sub County | Nairobi | Westlands |