Education CS George Magoha is set to announce the KCPE examination anytime from now.
In the 2020 exam, 590,450 or 50.07 per cent of the candidates were boys and 588,742 (49.93 per cent) girls.
Isiolo, Meru, Vihiga, Kwale, Kisii, Kisumu, Kilifi, Bomet and Uasin-Gishu were among the 20 counties that had the highest number of female candidates.
According to Prof Magoha, 12,000 candidates did not sit the exam while 26,000 candidates were under 12 years.
The highest number was aged between 13 and 14 years which is the appropriate age.
Overall performance improved.
The highest mark dropped from 440 to 433 in 2020 while public schools clinched 10 out of 15 slots of the best candidates. Girls took the first three top slots.
They were: Mumo Faith from Karimwailu (433), Wesonga Nazala from Chogoria (432) and Muriithi Angel from Maseno - (432).
The fourth was a boy, Wanyonyi Samuel from Nzoia Sugar with 431 marks.
Public schools scooped 10 out of 15 slots of overall best candidates with girls taking eight of the slots.
Five papers including English composition, Kiswahili Lugha and Mathematics recorded an improvement. Five other subjects including English, Kiswahili Insha recorded a drop.
Female candidates performed better in English and Kiswahili Insha while male candidates performed better in Maths, Science and Social studies.
Some 8,091 candidates scored above 400 marks while 282,000 had between 300 and 399 marks with 589,00 scoring between 200 and 299 marks.
Prof Magoha said 2675 candidates with special needs sat the exam. Physical disabilities led the category.
A storm arose after private schools expressed concern over the results.