GIS (also known as mapping)

What is GIS?

GIS is an acronym for Geographic Information Systems.

Delta County uses GIS to manage spatial information, essentially modern day mapping. A GIS system brings power to mapping and provides visual representations of problems and can analyze and interpret data to find patterns and trends. You may not know it, but you probably use a GIS application on a regular basis, for example Google maps, Zillow, Petfinder, Craiglist, and many more. In its simplest form, GIS is information attached to a location stored in a computer file with the address and GPS location that can be shown on a map. Below are some GIS maps specifically for Delta County (select the image to link to the appropriate map/page).

Adult Sex Offenders Map

So that you may know locations of sexual predators and take precautions to avoid trouble.

Interactive Delta County Property Information Map

This map contains parcels (owner name and link to assessor records), roads, commissioner districts, voter precincts , town boundaries, city zoning, water companies, address points, and 2019 aerial imagery.   In this mapping application the user can change the base layer, search parcels, draw, measure area, and print maps. The information in this map is updated on a regular daily to bi-monthly schedule.

Land Use Code Map

Land Use Code Map

Use an address or parcel identification number to find zoning information for a property.

Water Drop

West Central Public Health - Private Well Water Quality

Well water chemistry for the West Central Public Health area which includes Delta, Montrose, Gunnison, San Miguel, Ouray, and Hinsdale counties. These results are from private water wells, tested by the homeowners using the Free Well Water Testing program and kits.


Flood Hazard Map - Address Look-Up

Interactive map where you search an address and receive information regarding FEMA flooding zones currently in effect for the searched address.  Flood Zones are currently being updated (2019) by The Colorado Water Conservation Board and are available as draft as-is data by request in County GIS office.  Also includes links for USGS river level alert sign-up and flood prediction service.

In need of mapping services or have an idea of improvement, question, or looking to download GIS shapefiles, please review our Data Share Policy.  Questions?  Email us.