CDD> Facts and Maps> Resources Statistical and Mapping Resources Demographics and Statistics FAQ Answers to 25 basic questions about Cambridge statistics. Development Log The Development Log, published quarterly, tracks larger-scale residential and commercial development projects. Other City Data Sources Other City of Cambridge data sources. Census Tract and Zip Code Lookup Census Tract and Zip Code Lookup Cambridge Statistics Elsewhere on the Web Statistics about Cambridge found elsewhere on the web. On Line Mapping Options On-line mapping options for the public. Contact Us Staff Contacts for Cambridge statistics and mapping information.