The 27-year-old died on Sunday 22 March - Mother's Day - after losing her battle with cervical cancer.
Goody's mother Jackiey Budden attended the funeral.
Goody's publicist Max Clifford said: "When we left the house it was cloudy and overcast. As we moved forwards the sun started to come through and that is what in many ways Jade's life was like.
"It was difficult to start with but as she got older she took more and more control ... and people came to appreciate that."
He added: "This is a girl who was ordinary and extraordinary at the same time."
Goody's children, Bobby, five, and Freddie, four, are on holiday in Australia with their father Jeff Brazier, at her request.
Goody's husband Jack Tweed was one of the pallbearers
Tweed, her husband, was able to attend the funeral, after his sentencing for assaulting a taxi driver was postponed.
The date for the sentencing has been moved to 16 April.
Tweed was recently released from prison after being convicted of assault in a separate case last year.
In his poem, read out in the church, he said: "My life will never be the same without you by my side/ Grief almost too much to bear, pain difficult to hide/ But when we look into the sky for the brightest star above/ Bobby, me and Freddie will send you all our love."
Tweed was one of the pallbearers as Goody's coffin was brought out of the church.
A hearse took the coffin to an unspecified spot where the TV star will be buried.
Earlier, the funeral procession set off from a funeral home in Bermondsey, south-east London - where Goody grew up - and made its way to her home in Upshire, Essex.
It eventually moved on to Buckhurst Hill, where Tweed lives.
One onlooker said she was there because Goody "is a Bermondsey girl, and we wanted to say our farewells to her.
The hearse passed through Bermondsey where Goody grew up
"She'll be remembered, especially for what she's done now. She'll leave a legacy."
Another onlooker, who held flowers by the roadside while waiting for the hearse to pass, said: "I've watched her since she first went into Big Brother and just admired her all the time.
"People will remember her as a Bermondsey girl done good."
The procession stopped outside a market on Southwark Park Road, known as The Blue, where her family once had a stall.
Funeral director Barry Albin-Dyer then released a single white dove, gesture that was greeted by cheering and applause.
Simon Hughes, Liberal Democrat MP for North Southwark and Bermondsey said Jade would be remembered fondly by the local community.
Goody and Tweed got married shortly before she died
"Jade was one of our own. She was herself... she never pretended to be anything other than herself. She was proud of where she came from. Her family were absolutely rooted in the local community.
"Lots of people you bump into obviously were at primary school with her, were at secondary school with her. So she was very much a character of our age."
Former member of boy band Blue, Antony Costa, arrived at the church for the service saying he was "absolutely devastated that she's gone," and he hoped her legacy "lives on".
Also attending the service was Big Brother presenter Davina McCall.
The service was led by the Reverend Corinne Brixton, who baptised Goody and her two sons last month, and the Reverend Dr Ian Farley.
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