Kitui just like other 21 counties failed to produce a candidate in the 2019 KCPE top 100 list, nationally. The best candidate in the County scored 428 marks out of 500.
Here are the Kitui County top candidates and their schools in the 2019 KCPE exams:
| INDEXNO | NAME | GE | ENG | KIS | KSL | MAT | SCI | SSR | TOT | School_code | School_Name |
| 13302124005 | WAFULA PEACE NEKESA | F | 93A | 93A | = = | 82A | 77A- | 83A | 428 | 13302124 | ST MICHAEL’S |
| 13339120022 | SAMMY JIMMY MUMO | M | 86A | 83A | = = | 85A | 80A | 87A | 421 | 13339120 | MIGWANI TUMAINI ACADEMY |
| 13332143001 | REUBEN KELVIN MUSEMBI | M | 92A | 84A | = = | 81A | 80A | 82A | 419 | 13332143 | ST.JOSEPHINE BAKHITA |
| 13310143001 | MUNYASYA TRACY KANINI | F | 93A | 87A | = = | 83A | 76A- | 80A | 419 | 13310143 | MUTHAINGA ACADEMY |
| 13338224021 | NGUNDI MOSES SAFARI | M | 87A | 84A | = = | 83A | 84A | 80A | 418 | 13338224 | PRECIOUS MOMENT |
| 13338210037 | JOHN MUSYOKA | M | 83A | 82A | = = | 85A | 79A- | 89A | 418 | 13338210 | UKASI |
| 13302124007 | MALUKI PHILOMENA MWATHI | F | 89A | 88A | = = | 81A | 76A- | 84A | 418 | 13302124 | ST MICHAEL’S |
| 13302124011 | GEOFFREY ELIZABETH MWENDE | F | 85A | 89A | = = | 82A | 79A- | 83A | 418 | 13302124 | ST MICHAEL’S |