Mexico City's C5 monitored 113,814 street cameras in March 2026, watched from seven regional C2 centres. Most sit on masts that also carry loudspeakers, a strobe and a panic button that opens an intercom to a C2 operator; the same speakers relay the national seismic alert from about 13,900 poles. The city expects roughly 119,000 cameras before the 2026 World Cup. Officials say the cameras store no biometric data, and a facial-recognition upgrade announced in 2019 has never been independently confirmed as running.
Peer-reviewed findings are split: a 2025 study links the camera programme to a significant fall in pedestrian robbery (2018-2019 data), while a 2023 study found no effect on delivery robberies from the 2019 MiCalle expansion. Data Civica and R3D found about 60% of crimes happen within 200 m of a C5 camera, yet police use the footage in under 1% of investigations.
🎓 Lesson
Coverage is not evidence. The network sees most of the city's crime and still rarely feeds a case file, and 60% of panic-button presses were misuse in early 2026 — the binding constraint is the institution that has to consume the data, not the mast that collects it.
Evidence🔬 Peer-reviewed
Scale🏙️ City-wide
Cost≈US$459M for the 2009-11 Ciudad Segura build; ≈MX$13bn (US$660M) on infrastructure and software by 2021; MX$600M for the 2025 camera batch
FundingMexico City government budget
Sources
↗ C5 CDMX — Difusión de la Alerta Sísmica desde los postes del C5 (operator)Operator page: 13,934 C5 poles reproduce the seismic alert through their speakers, each covering up to 200 m, across all 16 boroughs. The c5.cdmx.gob.mx domain returned 503 to automated fetching on 2026-07-26; figure corroborated by IMER Noticias and Milenio coverage of the annual speaker tests.
↗ C5 CDMX — Boton de Auxilio (operator)Operator definition of the artefact: 'El Boton de auxilio es un intercomunicador de contacto directo con los C2' — press once, an operator at a C2 answers by intercom, files a report and dispatches the relevant emergency service. Page 503s to automated fetching; wording matched by TV Azteca and Telediario explainers.
↗ Mediotiempo — CDMX se blinda rumbo al Mundial 2026 (23 Mar 2026)C5 coordinator Salvador Guerrero Chipres: 'Estamos hablando de 113 mil 814 camaras, y antes del Mundial yo creo que vamos a llegar a 119 mil camaras' ('113,814 cameras, and before the World Cup I think we will reach 119,000'). Same piece: seven C2 centres 'distribuidos estrategicamente' for faster territorial response, and 29 participating institutions.
↗ Expansion Politica — C5 va por 40,200 camaras en 2025 (8 May 2025)'Actualmente operan 83,414 camaras distribuidas en las 16 alcaldias'; MX$600M for 40,200 new cameras; totems ~MX$75,000 each with panic button and strobe, intelligent poles over MX$500,000 with 'boton de auxilio, internet gratuito y sistema de alertamiento sismico'. Also the source for the operator statement that the cameras do not store biometric data.
↗ Rest of World — Where surveillance cameras work, but the justice system doesn't (19 Jan 2021)Reporting the Data Civica and R3D analysis: 'approximately 60% of crimes in the city take place within 200 meters of a C5 camera, but police use C5 footage in less than 1% of investigations.' Also 'The city has spent more than $660 million (about MX$13 billion) in total on the infrastructure and software.' Spanish version republished by Animal Politico.
↗ Applied Geography — Testing the local and spatial spillover effects of police monitored CCTV systems on crime (2023)Peer-reviewed difference-in-differences spatial panel on the MiCalle rollout (from mid-2019, poles in the 333 highest-crime neighbourhoods): 'no evidence connecting delivery robbery crime rates to the Mexico City MiCalle program', which 'has been geographically unfocused and appears to have been ineffective in reducing delivery robberies.' Publisher page returned 403 to automated fetching; abstract read via the search index.
↗ El Universal — Mal uso de botones de auxilio alcanza 60% (11 Feb 2026)'El 60 % de las activaciones de los botones de auxilio del Centro de Comando, Control, Computo, Comunicaciones y Contacto Ciudadano (C5) es por mal uso' — 60% of panic-button activations are misuse, against 70% a year earlier. C5 figures reported by the press, not an independent audit.
↗ Excelsior — C-5 se renueva con reconocimiento facial y lectura de placas (8 Aug 2019)Then-coordinator Juan Manuel Garcia Ortegon on 18,500 new HD cameras: 'reconocimiento facial, como la lectura automatica de placas que ahora se pueden integrar porque tendremos un software nuevo' — announced as a planned capability. No source found confirming facial recognition in operation on the CDMX network; the confirmed deployment is the neighbouring State of Mexico's separate Nexus system (Jan 2026).
↗ Infodefensa — Thales y Telmex se adjudican el proyecto Ciudad Segura (12 Mar 2009)Origin of the network and the basis for yearStart 2009: the Ciudad Segura contract awarded to Telmex with Thales at about US$460M, building 8,000 simultaneous video-surveillance points; 8,088 STV masts were installed from 2009 under the CAEPCCM, the C5's predecessor.
📎 Cite this project
1001 Smart Cities (2026). “C5 Camera, Panic-Button and Seismic-Alert Network” — Mexico City, Mexico. The Smart City Atlas. https://1001smartcities.org/projects/mexico-city-c5/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.
