List of Best, Top Performing Schools in Isiolo County
List of all Senior Schools in Isiolo County
| S/No. | SCHOOL NAME | CLUSTER | TYPE | (Regular/ SNE/ | DISABILITY TYPE | ACCOMODATION TYPE | GENDER | REGION | COUNTY | SUB COUNTY | UIC | KNEC |
| 1763 | DADACHABASA SECONDARY | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | CHERAB | 8VYM | 17377102 |
| 1764 | KORBESA MIXED DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | CHERAB | D3XJ | 17377101 |
| 1765 | ALGANI GIRLS DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | GIRLS | EASTERN | ISIOLO | GARBATULLA | NWAZ | 17322203 |
| 1766 | BISANADHI HIGH SCHOOL | C2 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | GARBATULLA | WUBX | 17322201 |
| 1767 | GAFARSA MIXED DAY SECONDARY | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | GARBATULLA | Q78U | 17322102 |
| 1768 | GARBATULA HIGH SCHOOL | C1 | PUBLIC | REGULAR | NONE | BOARDING | BOYS | EASTERN | ISIOLO | GARBATULLA | ZXZL | 17300015 |
| 1769 | GARBATULLA GIRLS DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | GIRLS | EASTERN | ISIOLO | GARBATULLA | DE6M | 17322103 |
| 1770 | KULAMAWE SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | GARBATULLA | 63HE | 17322202 |
| 1771 | AREMIET MIXED SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | MUZD | 17306208 |
| 1772 | BULAMPYA DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | DYE5 | 17306205 |
| 1773 | ELSA SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | ISIOLO | YSF8 | 17306206 |
| 1774 | ISIOLO BARRACKS SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | 552A | 17306106 |
| 1775 | ISIOLO BOYS SECONDARY SCHOOL | C2 | PUBLIC | REGULAR | NONE | BOARDING | BOYS | EASTERN | ISIOLO | ISIOLO | 59YN | 17306101 |
| 1776 | ISIOLO GIRLS HIGH SCHOOL | C1 | PUBLIC | INTERGRATED | VI | BOARDING | GIRLS | EASTERN | ISIOLO | ISIOLO | WMYK | 17300009 |
| 1777 | KAMBI GARBA MIXED DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | 5KU9 | 17306209 |
| 1778 | LEPARUA MIXED DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | YR5U | 17306303 |
| 1779 | MCK KISIMA 78 SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | LL9V | 17306113 |
| 1780 | MWANGAZA GIRLS SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | GIRLS | EASTERN | ISIOLO | ISIOLO | R29X | 17306109 |
| 1781 | NGAREMARA GIRLS SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | GIRLS | EASTERN | ISIOLO | ISIOLO | ABZJ | 17306110 |
| 1782 | NGAREMARA SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | BOYS | EASTERN | ISIOLO | ISIOLO | R4NQ | 17306105 |
| 1783 | ST. PAUL’S KIWANJANI SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | QT2Q | 17306104 |
| 1784 | UHURU MIXED DAY SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | HYGN | 17306204 |
| 1785 | WASO SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | ISIOLO | W7V7 | 17306202 |
| 1786 | BILIQO MIXED SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | MERTI | YG3S | 17356104 |
| 1787 | BULESA SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | MERTI | 8MJ6 | 17356203 |
| 1788 | MERTI MUSLIM GIRLS’ SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | GIRLS | EASTERN | ISIOLO | MERTI | 2GM4 | 17356102 |
| 1789 | MERTI SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | BOYS | EASTERN | ISIOLO | MERTI | 9HG4 | 17356101 |
| 1790 | KIPSING MIXED DAY SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | OLDONYIRO | 6VCH | 17372302 |
| 1791 | LABARISHEREKI SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | OLDONYIRO | PMEG | 17372304 |
| 1792 | OLDONYIRO SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | OLDONYIRO | R8K2 | 17372301 |
| 1793 | BILIQI NUR MIXED SECONDARY SCHOOL | C4 | PUBLIC | REGULAR | NONE | DAY | Mixed | EASTERN | ISIOLO | SERICHO | FGM7 | 17373302 |
| 1794 | SERICHO SECONDARY SCHOOL | C3 | PUBLIC | REGULAR | NONE | BOARDING | Mixed | EASTERN | ISIOLO | SERICHO | ZHKU | 17373301 |
