Norfolk County Council is now under no overall control after UKIP won in 15 divisions, 14 of them new gains.
And three of the highest profile members of the cabinet on the Conservative controlled county council have been beaten by UKIP candidates.
UKIP took seats from Graham Plant, cabinet member for planning and transportation, in Breydon and Barry Stone, cabinet member for cultural services and communications in Lothinglan.
Ann Steward, cabinet member for economic development, was another casualty to UKIP - in Swaffham.
The Conservatives have 40 divisions, Labour 14, UKIP 15, Lib Dems 10 and the Greens 4. One independent, Richard Bird, has triumphed in Sheringham but Conservative Tom Garrod saw off the threat of independent Stephen Heard in Wroxham.
UKIP, who had just one county councillor before these elections, has scored notable victories, including Holt, Gayton and Nar Valley, Watton and East Flegg, They took 11 seats from the Conservatives.
County council leader Bill Borrett survived a strong push from UKIP in Elmham and Mattishall, while Cliff Jordan, cabinet member for efficiencies hung on in Yare and All Saints.
The Conservatives had a majority of 34 going into these elections, but today's results have whittled that away, so the council is now under no overall control.
It will mean a weekend of discussions between political parties, but the likelihood is that the Conservatives will look to run a minority administration.
One division, in Thetford West, went to four recounts, with one vote between Labour and UKIP. The seat was won by Peter Georgiou, which meant UKIP became the official opposition.
Mr Borrett, current Conservative leader of Norfolk County Council, acknowledged: 'UKIP have had a very strong result and it's not what I expected. All credit to them - they are now the second largest party on Norfolk County Council.
'We now need a bit of time for reflection. All the various political groups will be meeting to discuss who will lead them. There needs to be discussions with them and when that has happened we need to talk about what happens with no party in overall control.
'Within the next week we should have a clearer idea of what's going to happen.'
Compared to 2009, the party gains and losses are: Conservatives lost 20 seats, UKIP gained 14, Labour gained 11, Liberal Democrats lost three, Greens lost three and an independent gained one seat.
In Norwich, former Norwich City Council leader Steve Morphew has taken Catton Grove from Conservatives for Labour. Labour also took Town Close and Sewell from the Greens.
The Greens were pleased, however, by their victory in Thorpe Hamlet, where Adrian Dearnley deposed Phil Hardy, who had defected from the Greens to the Conservatives in mid-term.
A total of 29.9pc people voted in the borough of Great Yarmouth resulting in five UKIP seats, three Labour and one Conservative seats.
The share of the vote was Conservative 32.6pc, UKIP 23.47pc, Labour 22.75pc, Liberal Democrat 10.97pc, Green 6.55pc, Independent 3.27pc, Christian People's Alliance 0.13pc, United People's Party 0.02pc and no description on ballot paper 0.22pc.
The county electorate was 670,383 and the total number of votes cast was 215,465. The overall percentage turnout was 32.14pc.
RESULTS:
ACLE: Brian Iles (Conservative) HOLD
ATTLEBOROUGH: Alec Byrne (Conservative) HOLD
AYLSHAM: David Harrison (Lib Dem) HOLD
BLOFIELD AND BRUNDALL: Andrew Proctor (Conservative) HOLD
BLOFIELD with SOUTH WALSHAM: Susan Lawn (Conservative) HOLD
BOWTHORPE: Mike Sands (Labour) GAIN from Conservative
BREYDON: Alan Grey (UKIP) GAIN from Conservatives
CAISTER-ON-SEA: Patrick Hacon (Labour) GAIN from Conservatives
CATTON GROVE: Steve Morphew (Labour) GAIN from Conservatives
CLAVERING: Margaret Somerville (Conservative) HOLD
CLENCHWARTON & KING'S LYNN SOUTH: Alex Kemp (Labour) HOLD
COSTESSEY: Tim East (Lib Dem) HOLD
CROME: George Nobbs (Labour) HOLD
CROMER: Hilary Cox (Conversation) HOLD
DEREHAM NORTH: William Richmond (Conservative) HOLD
DEREHAM SOUTH: Paul Gilmour (UKIP) GAIN from Conservatives
DERSINGHAM: Anthony Dobson (Con) HOLD
DISS AND ROYDON: Jenny Chamberlin (Conservative) HOLD
DOCKING: Michael Chenery (Conservative) HOLD
DOWNHAM MARKET: Tony White (Conservative) HOLD
DRAYTON AND HORSFORD: Tony Adams (Conservative) HOLD
EAST DEPWADE: Martin Wilby (Conservative) HOLD
EAST FLEGG: Jonathon Childs (UKIP) GAIN from Conservatives
EATON: Brian Watkins (Lib Dem) HOLD
ELMHAM AND MATTISHALL: Bill Borrett (Conservative) HOLD
FAKENHAM: Tom Fitzpatrick (Conservative) GAIN from Lib Dem
FELTWELL: Martin Storey (Con) HOLD
FINCHAM: Brian Long (Conservative) HOLD
FOREHOE: Colin Foulger (Conservative) GAIN from Independent
GAYTON AND NAR VALLEY: Richard Coke (UKIP) GAIN
GAYWOOD SOUTH: Margaret Wilkinson (Labour) GAIN from Conservatives
GORLESTON ST ANDREWS: Matthew Smith (UKIP) GAIN from Conservatives
GUILTCROSS: Stephen Askew (Conservative) HOLD
HELLESDON: Shelagh Gurney (Conservative) HOLD
HENSTEAD: Roger Smith (Conservative) HOLD
HEVINGHAM AND SPIXWORTH: Daniel Roper (Lib Dem) GAIN from Conservative
HINGHAM: Margaret Dewsbury (Conservative) HOLD
HOLT: Michael Baker (UKIP) GAIN from Conservative
HOVETON AND STALHAM: Nigel Dixon (Conservative) HOLD
HUMBLEYARD: Judith Virgo (Conservative) HOLD
KING'S LYNN NORTH & CENTRAL: David Collis (Lab) GAIN from Conservatives
LAKENHAM: Susan Whitaker (Labour) HOLD
LODDON: Adrian Gunson (Conservative) HOLD
LONG STRATTON: Alison Thomas (Conservative) HOLD
LOTHINGLAND: Colin Aldred (UKIP) GAIN from Conservatives
MAGDALEN: Coleen Walker (Labour) HOLD
MANCROFT: Richard Bearman (Green) HOLD
MARSHLAND SOUTH: Harry Humphrey (Conservative) HOLD
MELTON CONSTABLE: David Ramsbotham (UKIP) GAIN from Conservative
MILE CROSS: Deborah Gihawi (Labour) GAIN from Greens
MUNDESLEY: Wyndham Northam (Conservative) GAIN from Lib Dems
NECTON AND LAUNDITCH: Mark Kiddle-Morris (Conservative) HOLD
NELSON: Andrew Boswell (Greens) HOLD
NORTH WALSHAM EAST: Edward Foss (Lib Dem) HOLD
NORTH WALSHAM WEST and ERPINGHAM: John Timewell (Lib Dem) HOLD
OLD CATTON: Judy Leggett (Conservative) HOLD
REEPHAM: James Joyce (Lib Dem) HOLD
SEWELL: Julie Brociek-Coulton (Labour) GAIN from Greens
SHERINGHAM: Brian Hannah (Lib Dem) HOLD
SOUTH SMALLBURGH: David Thomas (Lib Dem) HOLD
SWAFFHAM: Paul Smythe (UKIP) GAIN from Conservative
SPROWSTON: John Ward (Conservative) HOLD
TAVERHAM: Stuart Clancy (Conservative) HOLD
THE BRECKS: Ian Monson (Conservative) HOLD
THETFORD EAST: Denis Crawford (UKIP) GAIN from Conservative
THETFORD WEST: Peter Georgiou (UKIP) GAIN from Lib Dems
THORPE HAMLET: Adrian Dearnley (Greens) HOLD (Technically! It was Green at the last county council elections, so it's a hold, but the Green councillor Philip Hardy had defected to the Conservatives)
THORPE ST ANDREW: Ian Mackie (Conservative) HOLD
TOWN CLOSE: Emma Corlett (Labour) GAIN from Greens
UNIVERSITY: Bert Bremner (Labour) HOLD
WATTON: Stan Hebborn (UKIP) GAIN from Conservatives
WELLS: Marie Strong (Lib Dem) HOLD
WENSUM: Elizabeth Morgan (Greens) HOLD
WEST DEPWADE: Bev Spratt (Conservative) HOLD
WEST FLEGG: Michael Carttiss (Conservative) HOLD
WOODSIDE: Nigel Shaw (Conservative) HOLD
WROXHAM: Tom Garrod (Conservative) HOLD
WYMONDHAM: Joe Mooney (Conservative) HOLD
YARE AND ALL SAINTS: Cliff Jordan (Conservative) HOLD.
YARMOUTH NELSON & SOUTHTOWN: Rex Parkinson-Hare (UKIP) HOLD
YARMOUTH NORTH & CENTRAL: Michael Castle (Labour) GAIN from Conservatives
Make sure you keeping visiting this website for the results as they come in and get the paper tomorrow for a full round-up and reaction.
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