About SanGIS

Facts & Figures

County of San Diego

San Diego County covers an area of 4,526 square miles making it larger than Delaware or Rhode Island and 82% the size of the state of Connecticut. With a 2010 population of 3,095,313, it is the fifth most-populous county in the United States giving it a population greater than 21 states. The people of San Diego County live in 18 incorporated cities, 18 Indian reservations, 16 significant naval and military locations or 64 unincorporated areas. Over 480 species of birds have been observed in San Diego County, more than any other county in the United States. Public agencies or districts own over 60% of the land in the County.

City of San Diego

The City of San Diego was founded in 1769 and chartered in 1850. It covers 342 square miles (8 % of the County), has a 2010 population of 1,307,402 (42% of the County), and includes 52 planning areas. It is the 2nd largest city in California and the 8th largest city in the United States. The City of San Diego was rated the fifth-best place to live in the United States by MONEY Magazine in 2006.


The SanGIS database is extensive and covers every incorporated and unincorporated area in the County. Following are a few facts about the volume of GIS data available to SanGIS' JPA members and the general public.

Key Landbase Data Items (as of January 2017)
1,061,753 Parcels
158,532 Road segments
125,342 Intersection Points
1,147,900 Address points
7,246 Open Space Easements
Data Warehouse Layers (as of January 2017)
Over 500 spatial data warehouse layers available to JPA members
Data replicated weekly to the City and County networks
362 publicly available layers (as shape files) in 29 categories
Monthly or quarterly updates of 30 public data layers
Key Public Data Services
Average of 1.5 standard maps created each business day for public use
Over 9 hours per month of special public requests for data extracts/special mapping
Over 8,400 registered users on the SanGIS/SANDAG Regional Data Warehouse
From January 1, 2016 through December 31, 2016 there was an average of 7,708 files downloaded each month from the SanGIS data warehouse web site. This is equivalent to a file being downloaded once every 5.7 minutes, 7 days a week, 24 hours a day, 365 days a year.