Florida Resources and Environmental Analysis Center


Custom Data made by FREAC

* Note that data prepared by FREAC is likely in the US National Grid (USNG) Spatial Data Model format at a 1-km grid cell size unless otherwise specified.

High-resolution Population Estimates

Dasymetric estimation techniques have undergone rigorous testing and are unquestionably considered more accurate than non-dasymetric methods. FREAC combines census data and property appraiser data from the Florida Department of Revenue to calculate a population estimation for each of the 9 million property parcels in Florida. Data are aggregated to a 1-km grid.

Florida Walkability Measures

The Florida Department of Health, Division of Community Health Promotion has commissioned a statewide evaluation of current walkability measures. This report was commissioned to examine, analyze, and evaluate walkability measures in current academic literature, assess the data available, develop a suitable walkability metric for Florida, and design online maps to visualize Florida’s walkability using this devised formula. A broader wish for the Department of Health is that the results of this study are useful to local planners for designing more walkable communities with the long-term goal of increasing physical activity.

Land Use and Land Cover

Land use is aggregated from the Florida Department of Revenue's property appraisal data from 2014. Land cover is from the 2011 National Land Cover. Both sets of data are aggregated to a 1-km grid.

Drinking and Wastewater Sources and Population Affected

Drinking and wastewater data are from the Florida Department of Health's Florida Water Management Inventory Project. Water data is combined with population data for an easy way to assess populations using each type of public and private water facilities. Available April 2019.

Residential Property Prices

Property prices are aggregated from the Florida Department of Revenue's property appraiser database and aggregated to a 1-km grid. Fees may apply.

Data from the Land Boundary Information System (LABINS.org)

The data below is available from the Land Boundary Information System website at labins.org. For large dataset needs, contact FREAC for purchasing options.

The Interactive Mapping Interface is an alternative available for locating high-resolution imagery, DOQQ, DLG, DRG, and DEM data.

High Resolution Imagery

FREAC serves as a state repository for high resolution imagery. We currently have imagery available from 2006 to the present time. Approximately one-third of the state is flown each year and these images are available for delivery the following summer. Most imagery is 1-foot resolution; occasionally a county is flown at half-foot resolution. To see what imagery is available for each county, check the Florida Images Inventory. For large dataset needs, we have purchase options available - see the Images Inventory page for details.

Digital Orthographic Quarter-Quads (DOQQ)

FREAC maintains a library of digital orthophotography quadrangles (DOQ) for Florida and can provide imagery for a variety of needs. The imagery is available in several projections and file formats. Dates range from 1995 to 2004.

Digital Raster Graphic (DRG)

A library of digital raster graphics (DRG) of a variety of USGS maps of Florida. The US Topo "Next Generation" maps are available for 2012 and 2015.

Digital Line Graph (DLG)

These 1:24000 scale digital line graphs (DLG) are currently being used as a statewide frame work for cadastral mapping of Florida.

Digital Elevation Model (DEM)

A Digital Elevation Model (DEM) is a digital representation of the contours of the Earth's surface. The information is derived from elevation measurements at regularly spaced intervals. This data is published by the USGS and covers a 7.5-minute area with 30-meter resolution.


The Southwest Florida Water Management District (SWFWMD) has contributed data for their region. Data includes the following Florida counties: Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands, Hillsborough, Lake, Lee, Levy, Manatee, Marion, Pasco, Pinellas, Polk, and Sumter.

Florida's Original Government Survey (beginning in 1824)

The original survey of Florida is from around 1824. Data consists of the original township plats, surveyor field notes, and original sales plats.

Certified Corner Records

Certified Corner Records have been collected since 1977 and are updated regularly. All records use the recently adopted land identification program sponsored by the Bureau of Land Management. Currently there are over 100,000 corners recorded in the database.

Horizontal and Vertical Control Points

Data is from the National Geodetic Survey in Washington, D.C.

Water Boundary Data