The Capital City of Kenya, Nairobi, has the most prestigious Senior Schools in the Country. Several highly sought-after senior secondary schools in Nairobi County include The Kenya High School, Starehe Boys Centre, Alliance Girls High School, and Pangani Girls High School. These schools are known for their strong academic performance and popularity among students. Other notable institutions include Brookhouse Schools, Hillcrest International Schools, and the International School of Kenya.
Popular Senior Secondary Schools in Nairobi County:
- The Kenya High School: Consistently ranks among the top national schools and is known for its strong academic record.
- Starehe Boys Centre: Another top-performing school, particularly known for its strong performance in the KCSE examinations.
- Alliance Girls High School: A prestigious national girls’ school, often ranked highly in national examinations.
- Pangani Girls High School: A popular choice for female students, known for its strong academic performance.
- Brookhouse Schools: An international school offering a wide range of academic programs.
- Hillcrest International Schools: Another well-regarded international school in Nairobi.
- International School of Kenya: An international school with a diverse student body.
- Nairobi Academy: Offers a British and international system of education for students aged 2-18.
- Braeburn School: Offers both British and international systems of education.
- Moi High School Kabarak: A national school with a strong reputation and history.
- German School Nairobi: An international school offering German and international curricula.
NATIONAL SENIOR SCHOOLS IN NAIROBI COUNTY
| SCHOOL NAME | GENDER | COUNTY | SUB COUNTY | UIC/ NEMIS CODE | KNEC CODE |
| LENANA SCHOOL | BOYS | NAIROBI | DAGORETTI | 3KSM | 20400001 |
| PRECIOUS BLOOD RIRUTA | GIRLS | NAIROBI | DAGORETTI | P5US | 20405004 |
| MOI FORCES | BOYS | NAIROBI | KAMUKUNJI | 3UKL | 20400008 |
| KASARANI TREESIDE FOR THE DEAF | MIXED | NAIROBI | KASARANI | BWWU | 20407056 |
| STAREHE GIRLS | GIRLS | NAIROBI | KASARANI | KJTC | 20400009 |
| MOI GIRLS SECONDARY | GIRLS | NAIROBI | KIBRA | RF7R | 20410001 |
| BURUBURU GIRLS SECONDARY | GIRLS | NAIROBI | MAKADARA | PF86 | 20401007 |
| PANGANI GIRLS | GIRLS | NAIROBI | STAREHE | DZNA | 20400006 |
| STAREHE BOYS | BOYS | NAIROBI | STAREHE | YS3B | 20400004 |
| KENYA HIGH SCH | GIRLS | NAIROBI | WESTLANDS | UX27 | 20400003 |
| NAIROBI SCH | BOYS | NAIROBI | WESTLANDS | GHXC | 20400002 |
| ST GEORGES GIRLS | GIRLS | NAIROBI | WESTLANDS | 8XQJ | 20406011 |
| STATE HOUSE GIRLS | GIRLS | NAIROBI | WESTLANDS | HFQ3 | 20406002 |
EXTRA-COUNTY SENIOR SCHOOLS IN NAIROBI COUNTY
| SCHOOL NAME | GENDER | COUNTY | SUB COUNTY | UIC/ NEMIS CODE | KNEC CODE |
| DAGORETTI HIGH | BOYS | NAIROBI | DAGORETTI | 4TBK | 20405001 |
| ST. CLAIRE NEMBU GIRLS | GIRLS | NAIROBI | DAGORETTI | J2J5 | 20405007 |
| OLM SHAURI MOYO | GIRLS | NAIROBI | KAMUKUNJI | SRWK | 20402006 |
| UHURU SECONDARY | BOYS | NAIROBI | KAMUKUNJI | 6MR6 | 20402004 |
| UPPER HILL SECONDARY | BOYS | NAIROBI | KIBRA | DZ3D | 20410002 |
| KAREN C GIRLS SECONDARY SCHOOL | GIRLS | NAIROBI | LANGATA | EZAV | 20404022 |
| LANGATA HIGH SCHOOL | BOYS | NAIROBI | LANGATA | 9AAU | 20404001 |
| AQUINAS HIGH | BOYS | NAIROBI | MAKADARA | FCSK | 20401001 |
| HIGHWAY SECONDARY | BOYS | NAIROBI | MAKADARA | MA68 | 20401002 |
| HURUMA GIRLS HIGH | GIRLS | NAIROBI | MAKADARA | 42VP | 20401003 |
| OFAFA JERICHO HIGH | BOYS | NAIROBI | MAKADARA | STEN | 20401005 |
| OUR LADY OF MERCY SECONDARY | GIRLS | NAIROBI | MAKADARA | 83B8 | 20401004 |
| ST. ANNES GIRLS SECONDARY | GIRLS | NAIROBI | MAKADARA | K4LV | 20401020 |
| MUHURI MUCHIRI | BOYS | NAIROBI | NJIRU | TTS9 | 20409002 |
| DR. RIBERIO PARKLANDS | BOYS | NAIROBI | STAREHE | H6QR | 20403002 |
| JAMHURI HIGH | BOYS | NAIROBI | STAREHE | NKPF | 20403001 |
| NGARA GIRLS | GIRLS | NAIROBI | STAREHE | VC7M | 20403004 |
| PUMWANI BOYS | BOYS | NAIROBI | STAREHE | 9QDT | 20403003 |
| HIGHRIDGE GIRLS | GIRLS | NAIROBI | WESTLANDS | HUTR | 20406019 |
| HOSPITAL HILL HIGH | BOYS | NAIROBI | WESTLANDS | 6J98 | 20406009 |
| PARKLANDS ARYA GIRLS | GIRLS | NAIROBI | WESTLANDS | QZ9P | 20406001 |
COUNTY SENIOR SCHOOLS IN NAIROBI COUNTY
| SCHOOL NAME | GENDER | COUNTY | SUB COUNTY | UIC/ NEMIS CODE | KNEC CODE |
| MUTUINI HIGH SCHOOL | BOYS | NAIROBI | DAGORETTI | 6LBG | 20405005 |
| RUTHIMITU GIRLS SEC SCH | GIRLS | NAIROBI | DAGORETTI | WTGV | 20405008 |
| EMBAKASI GIRLS | GIRLS | NAIROBI | EMBAKASI | MP2L | 20408007 |
| MAINA WANJIGI | GIRLS | NAIROBI | KAMUKUNJI | X2SE | 20402003 |
| PCEA BOOTH GIRLS NGONG FOREST | GIRLS | NAIROBI | LANGATA | ND22 | 20404052 |
| ST.TERESA’S GIRLS SEC. SCHOOL | GIRLS | NAIROBI | MATHARE | 2WHH | 20411001 |
| RUAI BOYS | BOYS | NAIROBI | NJIRU | 6HWP | 20409025 |
| RUAI GIRLS | GIRLS | NAIROBI | NJIRU | VXQ8 | 20409024 |
| COUNTY GIRLS | GIRLS | NAIROBI | STAREHE | 5KFH | 20403024 |
| KANGEMI HIGH | BOYS | NAIROBI | WESTLANDS | ZSQY | 20406007 |
| LAVINGTON GIRLS | GIRLS | NAIROBI | WESTLANDS | 9C88 | 20406018 |
| STATE HOUSE BOYS | BOYS | NAIROBI | WESTLANDS | 6BMW | 20406012 |
SUB-COUNTY SENIOR SCHOOLS IN NAIROBI COUNTY
| SCHOOL NAME | GENDER | COUNTY | SUB COUNTY | UIC/ NEMIS CODE | KNEC CODE |
| BETH MUGO HIGH SCHOOL | MIXED | NAIROBI | DAGORETTI | JKBF | 20405048 |
| DAGORETTI MIXED | MIXED | NAIROBI | DAGORETTI | M2WQ | 20405009 |
| KAGIRA MIXED SEC SCHOOL | MIXED | NAIROBI | DAGORETTI | 3DJB | 20405156 |
| MUKARARA MIXED SECONDARY SCHOOL | MIXED | NAIROBI | DAGORETTI | 67VW | 20405158 |
| MUTUINI GIRLS SEC SCH | GIRLS | NAIROBI | DAGORETTI | XQKG | 20405157 |
| NDURARUA HIGH SCHOOL | MIXED | NAIROBI | DAGORETTI | 2E6M | 20405152 |
| RIRUTA SATELLITE | GIRLS | NAIROBI | DAGORETTI | 7VW | 20405155 |
| RUTHIMITU MIXED SEC SCH | MIXED | NAIROBI | DAGORETTI | 4A53 | 20405006 |
| EMBAKASI GARRISON SEC | MIXED | NAIROBI | EMBAKASI | EPV8 | 20408029 |
| KAYOLE SOUTH SEC SCHOOL | MIXED | NAIROBI | EMBAKASI | 73KR | 20408015 |
| KWARE SEC | MIXED | NAIROBI | EMBAKASI | FYU6 | 20408016 |
| MWANGAZA SEC | MIXED | NAIROBI | EMBAKASI | WZTB | 20408020 |
| PETER KIBUKOSYA SECONDARY | MIXED | NAIROBI | EMBAKASI | XTVU | 20408014 |
| REUBEN SECONDARY SCHOOL | MIXED | NAIROBI | EMBAKASI | JYAF | 20408079 |
| THE KOMAROCK SCHOOL | MIXED | NAIROBI | EMBAKASI | 6YHU | 20408001 |
| UTAWALA SEC SCH | MIXED | NAIROBI | EMBAKASI | DNXE | 204080420 |
| EASTLEIGH HIGH | BOYS | NAIROBI | KAMUKUNJI | 4YMS | 20402001 |
| KAMUKUNJI SECONDARY | MIXED | NAIROBI | KAMUKUNJI | S7BQ | 20402005 |
| ST. TERESAS | BOYS | NAIROBI | KAMUKUNJI | YL92 | 20402002 |
| ZAWADI | MIXED | NAIROBI | KAMUKUNJI | V9EL | 20402013 |
| BABA DOGO SECONDARY | MIXED | NAIROBI | KASARANI | TWN3 | 20407005 |
| CLAY CITY MIXED SECONDAY | MIXED | NAIROBI | KASARANI | 9H8E | 20407065 |
| GARDEN ESTATE SECONDARY | MIXED | NAIROBI | KASARANI | WGLG | 20407059 |
| GITHURAI SECONDARY | MIXED | NAIROBI | KASARANI | KZ9K | 20407075 |
| GSU SECONDARY | MIXED | NAIROBI | KASARANI | 7V7J | 20407079 |
| HON. JOHN NJOROGE SECONDARY | MIXED | NAIROBI | KASARANI | UNKX | 20407063 |
| KAHAWA GARRISON SECONDARY | MIXED | NAIROBI | KASARANI | DCKZ | 20407002 |
| KAMITI SECONDARY | MIXED | NAIROBI | KASARANI | MDNM | 20407004 |
| KARIOBANGI NORTH GIRLS | GIRLS | NAIROBI | KASARANI | XSU9 | 20407037 |
| KIWANJA SECONDARY | MIXED | NAIROBI | KASARANI | FD3J | 20407068 |
| MWIKI SECONDARY | MIXED | NAIROBI | KASARANI | X7PG | 20407061 |
| OUR LADY OF FATIMA SECONDARY | MIXED | NAIROBI | KASARANI | 4JWP | 20407001 |
| RUARAKA HIGH SCHOOL | MIXED | NAIROBI | KASARANI | YT6P | 20407003 |
| TJ KAJWANG’ | MIXED | NAIROBI | KASARANI | YGUP | 20407078 |
| KIBERA SECONDARY | MIXED | NAIROBI | KIBRA | BPZU | 20410008 |
| MBAGATHI ROAD SECONDARY | GIRLS | NAIROBI | KIBRA | R5HL | 20410006 |
| OLYMPIC SECONDARY | MIXED | NAIROBI | KIBRA | 7KWW | 20410005 |
| RAILA EDUCATIONAL CENTRE | MIXED | NAIROBI | KIBRA | 4GLS | 20410003 |
| SHADRACK KIMALEL | MIXED | NAIROBI | KIBRA | 9ZYK | 20410004 |
| WOODLEY SECONDARY | MIXED | NAIROBI | KIBRA | D985 | 20410017 |
| KONGONI MIXED SECONDARY | MIXED | NAIROBI | LANGATA | K5UA | 20404005 |
| LANGATA BARRACKS MIXED DAY SECONDARY SCHOOL | MIXED | NAIROBI | LANGATA | J72C | 20404032 |
| MAKONGENI HIGH | MIXED | NAIROBI | MAKADARA | QLFR | 20401008 |
| NAIROBI SOUTH SECONDARY | MIXED | NAIROBI | MAKADARA | QRWK | 20401250 |
| NILE ROAD SECONDARY | GIRLS | NAIROBI | MAKADARA | 2JTD | 20401006 |
| ST PATRICK NBI MIXED SECONDARY | MIXED | NAIROBI | MAKADARA | RTG8 | 20401021 |
| STAR OF HOPE SECONDARY | MIXED | NAIROBI | MAKADARA | PTKZ | 20401249 |
| HURUMA MIXED SECONDARY SCHOOL | MIXED | NAIROBI | MATHARE | 6D74 | 20411013 |
| MATHARI MIXED SECONDARY | MIXED | NAIROBI | MATHARE | 4D84 | 20411014 |
| NDURURUNO SECONDARY | MIXED | NAIROBI | MATHARE | GBTE | 20411004 |
| DANDORA GIRLS | GIRLS | NAIROBI | NJIRU | 7J3H | 20409073 |
| DANDORA SEC | MIXED | NAIROBI | NJIRU | 4FTV | 20409001 |
| DR.MWENJE | MIXED | NAIROBI | NJIRU | 6E5C | 20409003 |
| DRUM VALE | MIXED | NAIROBI | NJIRU | 7SRC | 20409006 |
| GITUAMBA SEC | MIXED | NAIROBI | NJIRU | 2ZMT | 20409084 |
| HIGHWAY MANYATTA | MIXED | NAIROBI | NJIRU | R3H6 | 20409078 |
| JEHOVA JIRE | MIXED | NAIROBI | NJIRU | KKYM | 20409005 |
| MIHANGO SEC | MIXED | NAIROBI | NJIRU | 44JY | 20409026 |
| NILE ROAD SPECIAL | GIRLS | NAIROBI | NJIRU | 4FS3 | 20409079 |
| NJIRU MIXED | MIXED | NAIROBI | NJIRU | VH5G | 20409083 |
| ST.DOMINICS | MIXED | NAIROBI | NJIRU | 3U3G | 20409067 |
| ST.GEORGE’S ATHI | MIXED | NAIROBI | NJIRU | U87P | 20409007 |
| USHIRIKA | MIXED | NAIROBI | NJIRU | Z7N7 | 20409004 |
| CGHU MIXED SECONDARY | MIXED | NAIROBI | STAREHE | X3KC | 20403025 |
| PUMWANI GIRLS | GIRLS | NAIROBI | STAREHE | ZQXT | 20403026 |
| FARASI LANE | MIXED | NAIROBI | WESTLANDS | ZUN7 | 20406031 |
| KABETE VETLAB | MIXED | NAIROBI | WESTLANDS | 56Y9 | 20406032 |
| LORESHO SECONDARY | MIXED | NAIROBI | WESTLANDS | BJ3P | 20406034 |
| N. HIGHRIDGE SECONDARY | MIXED | NAIROBI | WESTLANDS | QAVM | 20406033 |