​​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
• Address lookup
• Buy maps
• Data Catalog
• map Ann Arbor
• MapWashtenaw
• Online Assessment/Property/Tax data

Community

• Crime mapping
• Curbside collection
• Historic districts
• Housing commission
• Neighborhood associations
• Property information
• Voting precincts

Environment

• Barton Dam Evacuation Zone
• Creekshed health
• Floodplain/Flood​way
• Green​belt (PDF)
• Green e​nergy​
• Impervious surface
• Tree inventory 

Recreation

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

Development​​

• Annexation potential
  
• DDA
• eTRAKiT
• Land use
• Petitions under review
• Plats
• Subdivisions by name
• Zoning

Transportation

• Road and lane closures
  
• Snow plowing
• Speed limit map (PDF)
  
• Traffic calming
• Truck routes (PDF)
  

Utility/Engineering

• Catch basins
• Geodetic Reference System
• Hydrants
• Hydrant flushing