​​​Ann Arbor Geographic Information System (A2Spatial)

The goal of the Ann Arbor Geographic Information System (A2Spatial) is to develop a central spatial data resource serving all citywide applications and customer service needs.  The A2Spatial service offers users multiple platforms to view and interact with our spatial data, from simple map graphics, PDF's to interactive web based maps like Geocortex which uses live data from our GIS databases.  Please browse the links below to find information of some of our spatial products and tools.

If you prefer you can also download some of the spatial data (and other City documents) for free from our Data Catalog.  The Data Catalog allows you to download ESRI Shapefiles or Google KMZ files of our most popular spatial datasets.  See the link below. 

General 

• A2 Fix It
• Buy a map
• City Address search
• Data Catalog
• map Ann Arbor (City map viewer)
• MapWashtenaw (County map viewer)
• Online Assessment/Property/Tax data
• Washtenaw County Maps

Community

• Crime mapping
• Curbside collection
• Historic districts
• Housing commission
• Neighborhood associations
• Property information
• Public art
• Special events
• Voting polls and precincts

Environment

• Barton dam evacuation zone
• Creekshed health
• Deer management
• Floodplain/Flood​way
• Green​belt (PDF)
• Impervious surface
• Tree inventory 

Recreation

• Bike​ map​
• Parks and Rec
• Google Parks map
• Parks memorial finder

Development​​

• Annexation potential
• DDA
• Downtown building frontage (PDF)
• Downtown character overlay (PDF)
• eTRAKiT
• Land Use (PDF)
• Marijuana
• Petitions under review
• Planning Services 2019 Report
• Plats
• Subdivisions by name
• Zoning

Transportation

• Road and lane closures
• City construction
• Michigan Stadium events parking restrictions (PDF)
• Snow plowing
• Speed limit map (PDF)
• Crash Map
• Traffic calming
• Traffic signals (PDF)
• Truck routes (PDF)
  

Utility/Engineering

• Geodetic Reference System
• Hydrant flushing 
• Water Service Material Information map