The Green Party have their first councillor on Essex County Council.
Michael Hoy polled 39% of the vote in Rochford West to take win the previously Conservative-held seat. The Tories had 31% of the vote while UKIP took 21%.
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.