Below is a list of all the schools in Kisii County:
1. Nyanchwa High School – Boys Boarding – 40703102
2. Kereri Girls High School – Girls Boarding – 40703103
3. St. Lawrence Kiong’ongi Sec School – Mixed Day – 40703105
4. Bishop Charles Mugendi Secondary School – Mixed Day – 40703109
5. Our Lady of Victory Nyambera DOK Sec Sch – Mixed Day – 40703110
6. Nyaura DEB Secondary School – Mixed Day – 40703112
7. Bobaracho Mixed Secondary School – Mixed Day – 40703114
8. Kiamabundu Secondary School – Mixed Day – 40703115
9. Daraja Mbili Mixed Secondary School – Mixed Day – 40703116
10. Getembe Secondary School – Mixed Day – 40703117
11. Nyanchwa Girls Sec Sch– Girls Boarding – 40703118
12. Cardinal Otunga High School-Mosocho – Boys Boarding – 40703201
13. Kiogge Girls H. S. – Girls Boarding – 40703202
14. Nyatieko Mixed Secondary School – Mixed Day – 40703203
15. Raganga Secondary School – Mixed Day – 40703205
16. St. Patick’s Mosocho Secondary School – Mixed Day – 40703206
17. St. Luke’s Kanunda Secondary School – Mixed Day – 40703207
18. Matieko Mixed Secondary School – Mixed Day – 40703208
19. St. Ambrose Nyaore Secondary School – Mixed Day – 40703209
20. Nyakeogiro Secondary School – Mixed Day – 40703210
21. Nyagisai Secondary School – Mixed Day – 40703211
22. Ong’icha Secondry School – Mixed Day – 40703212
23. Kiogo SDA Secondary School – Mixed Day – 40703214
24. St. Catherine Iranda Secondary – Mixed Day – 40703215
25. Riotero SDA Secondary School – Mixed Day – 40703217
26. Queen of Apostles Secondary School – Mixed Day – 40703218
27. St Augustine’s Otamba secondry School – Mixed Day & Boarding – 40703301
28. Nyanko Mixed Secondary School – Mixed Day – 40703302
29. Nyaguta Secondary School – Mixed Day – 40703303
30. Senior Chief Musa Nyandusi (Kegati) Sec School – Mixed Day & Boarding – 40703304
31. Matunwa SDA Sec. School – Mixed Day – 40703305
32. Amariba Sec. School – Mixed Day – 40703306
33. Nyosia Mixed Sec. School – Mixed Day – 40703308
34. Masongo Mixed Sec. School – Mixed Day – 0703312
35. Boronyi Mixed Secondary School – Mixed Boarding – 40703313
36. St Paul’s Amasago Secondary School – Boys Boarding – 40703401
37. Gianchere Friends Sec – Mixed Day – 40703402
38. Nyamagwa SDA Sec Sch – Mixed Boarding – 40703403
39. Irondi Sec. School – Mixed Day – 40703404
40. Ibeno Sec. School – Mixed Day – 40703405
41. Riondong’a Mixed Sec. School – Mixed Boarding – 40703406
42. Kirwa Mixed Sec School – Mixed Day – 40703407
43. St. Stephen’s Nyamware Sec School – Mixed Day – 40703408
44. Keoke friends Sec. School – Mixed Day – 40703409
45. Irungu PAG Sec. School – Mixed Day – 40703410
46. St Peter’s Kerera Mixed Secondary Schoo – Mixed Day – 40703411
47. Nyansira SDA Sec. School – Mixed Day – 40703412
48. Boruma Secondary School – Mixed Day – 40703413
49. Birongo SDA Sec. School – Mixed Day – 40703414
50. Our Lady of Victory Nyabiosi ‘n’ Secondary School – Mixed Day – 40703415
51. St. Francis Kabosi Sec. School – Mixed Day – 40703416
52. Nyankororo Sec. School – Mixed Day – 40703417
53. St. Angela Sengera Girls Sec Sch – Girls Boarding – 40711101
54. Gakero ELCK Secondary School – Mixed Day – 40711102
55. Sengera Parish Secondary School – Girls Boarding – 40711103
56. Nyansara Secondary School – Mixed Day – 40711104
57. Nyamonyo Secondary School – Mixed Day & Boarding – 40711105
58. Bombaba Mixed Secondary School – Mixed Day – 40711106
59. Buyonge Secondary School – Mixed Day – 40711107
60. Tendere Secondary School – Mixed Day – 40711108
61. Machongo Secondary School – Mixed Day – 40711109
62. Matagaro Sec Sch – Mixed Day – 40711110
63. Gakero SDA Sec School – Mixed Day – 40711112
64. Getuki Mixed Secondary School – Mixed Day – 40711113
65. Kebetre SDA Secondary School – Mixed Day – 40711114
66. Kineni PEFA Secondary School – Mixed Day – 40711115
67. Maroba Mixed Secondary School – Mixed Day – 40711116
68. Nyagenke D.E.B Secondary School – Mixed Day – 40711117
69. Nyataro Mixed Secondary School – Mixed Day – 40711118
70. Nyaburumbasi Secondary School – Mixed Day – 40711119
71. St. Joseph’s Nyansakia Secondary School – Mixed Day – 40711120
72. E.L.C.K Itierio Boys High School – Boys Boarding – 40716101
73. Suneka Secondary School – Mixed Day & Boarding – 40716102
74. St. Paul’s Igonga Secondary School – Mixed Day & Boarding – 40716103
75. Ekerubo Mixed Secondary School – Mixed Day & Boarding – 40716104
76. St Vincent’s Omwari Secondary School – Mixed Day – 40716105
77. Matongo Mixed Secondary School – Mixed Day – 40716106
78. Iruma Mixed Secondary School – Mixed Day – 40716107
79. Gesero Secondary School – Mixed Day – 40716109
80. Isamwera Secondry School – Mixed Day & Boarding – 40716110
81. Botoro Secondary School – Mixed Day & Boarding – 40716112
82. St. Teresas Bogiakumu Sec. School – Mixed Day – 40716113
83. Nyabimwa Secondary School – Mixed Day – 40716114
84. Kiabusura Secondry School – Mixed Day – 40716115
85. Itibo ELCK Boys Secondary School – Boys Day – 40716117
86. E.L.C.K Itierio Girls Secondary School – Girls Boarding – 40716118
87. Nyangoge Girls Secondry School – Girls Day – 40716119
88. Mosando SDA Secondary School – Mixed Day – 40716120
89. Bogitaa Mixed ELCK Secondary School – Mixed Boarding – 40716121
90. Nduru Boys High School – Boys Boarding – 40719101
91. Tabaka Secondary School – Mixed Day & Boarding – 40719102
92. Riosiri Secondary School – Mixed Day & Boarding – 40719103
93. Nyabigena Sec School – Boys Boarding – 40719104
94. Nyakorere PAG Secondary School – Mixed Day – 40719105
95. Nyakembene Secondary School – Mixed Day – 40719106
96. Omobiri Secondry School – Mixed Day – 40719107
97. Kiabigoria Secondary School – Mixed Day – 40719108
98. Nyamue Secondary School – Mixed Day – 40719109
99. Ramoya Hill Secondary School – Mixed Day – 40719110
100. St Joseph’s Kiorori Secondary – Mixed Day – 40719111