Okereke is extremely shy. He has expressed disdain for interviews, asking one interviewer from Skyscraper magazine, "Why is it important to know what I had for breakfast? Or who I went to bed with? Or what sneakers I am wearing? If it's relevant to understanding my music, then so be it. But if it's purely to satisfy the media's obsession with celebrity, then no thanks. I don't want to play that game." The focus of one interview with NME in July 2005 was largely to do with his dislike of being interviewed. In it he implied that the media placed deliberate emphasis on conflicts between bands and did not want to be drawn into such publicity, saying that "public feuding between bands is completely pointless." Okereke has also said, "people think that I hate being approached but that's not true" in NME on 15 September 2005.
In March 2010 Okereke came out as gay in a BUTT magazine article, and he then gave an interview and appeared on the front cover of the June 2010 issue of attitude magazine. Previously he had been reluctant to discuss his sexuality, though he had compared himself to famous bisexuals Brian Molko and David Bowie, as well as Morrissey. He also discussed the homoerotic story behind the Bloc Party song "I Still Remember" and the semi-autobiographical nature of it. In June 2010 Okereke was named as the Sexiest Out Gay Male Artist by music website LP33 in its annual survey.
In 2010, Okereke launched a personal photoblog at iamkele.com. On 7 June, whilst being interviewed by Steve Lamacq, Okereke said he would be moving to Manhattan at the end of the year. As of July 2010, Okereke was still living in Shoreditch in East London.
In a 2014 interview with NBHAP, Okereke told that he is "excited about the future. There is a lot going on, a lot of upheaval but with change comes the opportunity for rebirth, which is my favourite kind of experience."