Sadly, this site is suspend for the foreseeable future due to the refusal of the SSP-CDMX to provide updated crime information
Crime data since 2013 comes from a FOIA request to the SSPDF. Cuadrante coordinates scraped from Consulta de Cuadrantes. The population figures are based on the 2010 Census by Manzana. Keep in mind that about 95% of crimes in Mexico City are not reported to the police and you should focus on homicides and car robberies since by their nature they are harder to ignore.
Download the complete dataset as a csv file
Visit El Crimen for crime information at the national, state and municipio level
You can download a map of cuadrantes as GeoJSON using the API
This webapp is opensource and you can view the code on GitHub