Frequently Asked Questions

What is GIS?

GIS is an acronym for Geographic Information Systems. A Geographic Information System is defined as "an organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information."

What types of maps are available?

You can view a collection of our most requested maps by visiting our Map Mart. The maps are in Portable Document Format (PDF) for you to download and print at home or in your office.

How do I go about ordering a copy of a map?

If you cannot find a particular map in the Map Mart or need a hardcopy map in a different size, please contact us for further assistance.

Are copies of the St. Johns County Road Atlas available?

Yes, the most current version of the St. Johns County Road Atlas is available as a downloadable PDF from our Map Mart page as one file or by individual map page.

Copies of the 2013 Road Atlas are available to the public for $8.00 each. Supplies are limited so place your order today by contacting Joyce Jolley at (904) 209-0798.

Are digital data available for the public?

Yes, GIS data are available to the public free of charge from the GIS Data Depot page. The GIS Data Depot is a collection of data layers from our GIS Data Library, which are downloadable in shapefile or file geodatabase format. The GIS Data Depot DOES NOT include any parcel data. Please contact the St. Johns County Property Appraiser's Office for information regarding the parcel layer.

We also offer black/white aerial imagery of the County which was flown in 1999, 2002, and 2003. Color aerial imagery of the County is available for the years 2005, 2008 and 2010. Color infrared aerial imagery is also available of the County which was flown in 2002, 2005, 2008 and 2010. All of the aerial imagery is in Lizardtech's MrSID compressed file format and is provided to the public at a cost of $5.00 per DVD. ArcGIS Explorer is a free viewer that can read both shapefile and MrSid file formats. Please contact us for further assistance if you wish to order CD-ROMs or DVDs containing any of the County's GIS data.

What projection is the data in?

Projection: State Plane Coordinate System
Zone: Florida, East - 3601
Datum: NAD83
Units: Feet

What software do you use?

We use Esri software products including ArcGIS Desktop, ArcSDE and ArcGIS Server.

Where can I find more information about GIS?

A good place to start is to visit is a portal to GIS information on the Web and was created by Esri, a GIS software developer. The site is intended to educate anyone interested in geographic technology on the value that technology brings to his or her day-to-day activities.

Where is the GIS office located?

Our office is located in the St. Johns County Administration Building at 500 San Sebastian View, off of US 1 North in St. Augustine, Florida.

Maps are in Adobe PDF format using free Acrobat Reader.