| 101 |
Kamandio Secondary School |
Kitui Central |
Secondary |
| 102 |
Kamathitu Day Secondary School |
Mumoni |
Secondary |
| 103 |
Kamayagi Secondary School |
Thagicu |
Secondary |
| 104 |
Kambusu Day Secondary School |
Mumoni |
Secondary |
| 105 |
Kamusiliu Secondary School |
Kyuso |
Secondary |
| 106 |
Kamutei Secondary School |
Ikutha |
Secondary |
| 107 |
Kamuwongo Mixed Secondary School |
Kyuso |
Secondary |
| 108 |
Kanduti Mixed Secondary School |
Nzambani |
Secondary |
| 109 |
Kandwia Mixed Secondary School |
Kyuso |
Secondary |
| 110 |
Kangalu Mixed Day Secondary School |
Katulani |
Secondary |
| 111 |
Kangii Mixed Secondary School |
Kitui West |
Secondary |
| 112 |
Kangungi Secondary School |
Kitui West |
Secondary |
| 113 |
Kanguu Secondary School |
Nzambani |
Secondary |
| 114 |
Kanguutheni Secondary School |
Mwingi West |
Secondary |
| 115 |
Kangweni Mixed Secondary School |
Nzambani |
Secondary |
| 116 |
Kaningo Secondary School |
Tseikuru |
Secondary |
| 117 |
Kanyangi Girls Secondary School |
Lower Yatta |
Secondary |
| 118 |
Kanyuuni Mixed Secondary School |
Mwingi West |
Secondary |
| 119 |
Kanzau Mixed Secondary School |
Kisasi |
Secondary |
| 120 |
Kanziko Secondary School |
Ikutha |
Secondary |
| 121 |
Kanzui Secondary School |
Mwingi Central |
Secondary |
| 122 |
Karangeni Mixed Day Secondary School |
Tseikuru |
Secondary |
| 123 |
Karunga Secondary School |
Mwingi Central |
Secondary |
| 124 |
Kasaala Secondary School |
Ikutha |
Secondary |
| 125 |
Kasanga Secondary School |
Mwingi West |
Secondary |
| 126 |
Kasavani Highland Secondary School |
Mwingi West |
Secondary |
| 127 |
Kasevi Girls Day Secondary School |
Mwingi Central |
Secondary |
| 128 |
Kasue Secondary School |
Kitui West |
Secondary |
| 129 |
Kasyalani Secondary School |
Mumoni |
Secondary |
| 130 |
Katama Day Secondary School |
Thagicu |
Secondary |
| 131 |
Katheka Boys Secondary School |
Kitui West |
Secondary |
| 132 |
Katheuni Secondary School |
Matinyani |
Secondary |
| 133 |
Kathiiani Day Secondary School |
Mumoni |
Secondary |
| 134 |
Kathome Mixed Secondary School |
Lower Yatta |
Secondary |
| 135 |
Kathonzweni Secondary School |
Mwingi Central |
Secondary |
| 136 |
Kathungi Secondary School |
Katulani |
Secondary |
| 137 |
Kathungu Girls Secondary School |
Katulani |
Secondary |
| 138 |
Katooni Mixed Secondary School |
Mumoni |
Secondary |
| 139 |
Katoteni Secondary School |
Mwingi West |
Secondary |
| 140 |
Katulani Secondary School |
Katulani |
Secondary |
| 141 |
Katumbi Mixed Day Secondary School |
Tseikuru |
Secondary |
| 142 |
Katumbu Secondary School |
Nzambani |
Secondary |
| 143 |
Katutu Girls Secondary School |
Kitui West |
Secondary |
| 144 |
Katuuni Mixed Day |
Mumoni |
Secondary |
| 145 |
Katuyu Secondary School |
Mwingi West |
Secondary |
| 146 |
Katwala Secondary School |
Kisasi |
Secondary |
| 147 |
Katyethoka Mixed Secondary School |
Kitui Central |
Secondary |
| 148 |
Kauma Secondary School |
Matinyani |
Secondary |
| 149 |
Kaumba Mixed Secondary School |
Katulani |
Secondary |
| 150 |
Kaumu Mixed Secondary School |
Mutito |
Secondary |