UKIP now have seven Essex County Councillors for the following divisions:
- Wickford Crouch
- Laindon Park & Fryerns
- South Benfleet
- Rayleigh South
- Basildon Westley Heights
The surge in support for the anti-EU party will severely dent the Conservative majority on the council which was the safest Tory council in the Anglia region.
Regardless of the result in Thursday's election, Northamptonshire will have fewer county councils because of boundary changes.
The Tories have been sent a warning in their traditional Essex heartland, losing nine county council seats to a bullish UKIP.
Suffolk County Council has been Conservative-controlled since 2005. On Thursday there were elections for 75 councillors.