The megachurch pastor also praised small church groups that meet in people's homes in strengthening Saddleback. The church has more than 3,600 small groups stretching 100 miles away from the main campus - or at least one in every city in southern California.
Warren said proudly that there are more people meeting in small groups each week - around 30,000 - than attending Sunday service.
"I could drop dead right now and the church would still be growing," Warren joked half-seriously.
The community-building guru added that the church is not built around one figure and that he spends only about half the year preaching at Saddleback and the rest travelling to speak and train pastors around the world.
Warren also highlighted that the evangelical church offers around 22 different worship styles across its campus on Sunday but listens to the same sermon.
"God likes variety," Warren said with a laugh.
Besides membership decline, many mainline churches also report decline in financial contribution.
Warren said his church does "zero" fundraising, but instead teaches biblical stewardship and generosity. Saddleback raised $7 million for Hurricane Katrina relief efforts and $1.6 million for the tsunami with one simple announcement made from the pulpit.
Personally, Warren and his wife Kay have led the church by example. The couple tithed the standard 10 per cent during their first year of marriage, but raised it one percent each year thereafter - 12 per cent during their second year or marriage, 13 per cent in their third year of marriage, and so forth.
But after the success of Warren's book The Purpose Driven Life, the couple started to practise 'reverse tithing' - giving 90 per cent to God's work and living on 10 per cent.
The Purpose Driven Life is the best-selling hardback in US history and one of the best selling books in the world.
Other points in Warren's talk on Sunday included his global P.E.A.C.E. Plan (Plant churches, Equip servant leaders, Assist the poor, Care for the sick and Educate the next generation) and his belief in the need for a second reformation - one where Christians change their behaviour to reflect what they claim to believe in.
Next week, Warren will attend the National Prayer Breakfast and hold a small meeting with DC-area pastors.
