Serena Cox was a 15-year-old girl when she was last seen in Mesa, Arizona, on June 17, 2025. Her disappearance was subsequently entered into the National Center for Missing & Exploited Children’s national missing-child system, placing her case before both law enforcement and the public in an effort to obtain information about where she may have gone. The official NCMEC record identifies Serena as female and confirms Mesa as the city from which she disappeared.
Beyond those basic facts, comparatively little information about the events of that day has been publicly released. The official poster does not identify the particular neighborhood, residence, business, street, or intersection where Serena was last observed, nor does it describe who last saw her or what she was doing immediately before contact with her was lost. That lack of publicly available detail leaves a significant gap in reconstructing the final known hours before her disappearance, but the date and location are firmly documented: Serena was last seen in Mesa on June 17, 2025.
As Serena's case entered the missing-child system, she was assigned NCMEC case number 2054051 and National Crime Information Center number M918475306. The Mesa Police Department is identified by NCMEC as the law-enforcement agency associated with the investigation, with the department's public contact number listed as 644-2211. NCMEC also provides its 24-hour hotline, 1-800-843-5678, for information concerning Serena's whereabouts. These identifiers are important because Serena Cox is not an uncommon enough name to eliminate the possibility of confusion with unrelated individuals; the NCMEC and NCIC numbers specifically distinguish this missing-child investigation from other records bearing the same name. An Arizona missing-person publication likewise records Serena as missing from Mesa beginning June 17, 2025 and associates her with the same NCIC number, reinforcing the identifying information contained in the national record.
What makes Serena's disappearance particularly difficult to describe in greater chronological detail is how little of the investigative background has been made public. NCMEC's official poster does not provide a clothing description from June 17, does not identify a vehicle connected to her disappearance, and does not publicly describe a person who may have been with her. It also does not state whether Serena left a particular location on foot, entered a vehicle, communicated with someone before disappearing, or was believed to have traveled to another city or state. There is similarly no publicly stated timeline showing the hour she was last seen, when she was reported missing, or what initial searches were undertaken. No circumstances explaining why contact with her was lost are included in the official public notice. Because those details have not been released through the principal public case record, it would be misleading to portray Serena's disappearance as an abduction, a voluntary departure, a runaway situation, or any other specific scenario without additional evidence. What can be established is that authorities considered the case significant enough for Serena's information and photographs to be circulated nationally through NCMEC, while the Mesa Police Department remained the law-enforcement contact for information about her case.
The public appeal surrounding Serena therefore depends heavily on recognition. NCMEC maintains photographs with her case record and directs anyone who recognizes her or has information concerning the circumstances of her disappearance to contact law enforcement or submit information through the missing-child system. Even information that may initially seem minor—such as remembering seeing Serena around the period in which she disappeared, knowing whom she was communicating with, or recalling a place she may have intended to visit—could potentially help investigators establish a clearer timeline. For Serena's family and those who care about her, the limited public information makes the uncertainty especially painful: behind the case numbers and official poster is a teenage girl whose movements after her last known sighting have not been publicly explained. In overview, Serena Cox was 15 years old when she was last seen in Mesa, Arizona, on June 17, 2025; her disappearance is documented under NCMEC case 2054051 and NCIC number M918475306, the Mesa Police Department is the listed investigating contact, and the publicly available record contains few details about the precise circumstances surrounding the moment she disappeared, leaving the central question of what happened after her last known sighting unanswered in the information authorities have made public.Last Seen: Jun 17, 2025
