Ferguson (4956) and Clarke (3400) are leading the way for Horowhenua, closely followed by Lindsay Burnell (3,337) and Geoff Kane (3,252).
Turkington (5234) leads Manawatū-Rangitikei over current chair Bruce Gordon (5213) with Gordon McKellar (4657) trailing.
As it stands, that means McKellar has fallen out of favour.
Rachel Keedwell (9,662), Jono Naylor (9176), Wiremu Kingi Te Awe Awe (8,435) and Fiona Gordon (7910) topped Palmerston North with Chris Teo-Sherrell closest on (7,308).
Kirton (1,465) had a healthy count above Richard Steele (916) in Ruapehu and Benbow (2,365) looks to be in ahead of Andrew Day (1,458) in Tararua.
Horizons electoral officer Craig Grant said that approximately 95 per cent of votes have now been counted.
"These initial results are just a snapshot, preliminary results may differ as more results come in over the weekend," Grant said.
"Results will continue to be posted on the elections page of our website throughout the week until the special votes have been accounted for."
A final declaration of results will be posted between 19 and 25 October.