​​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
• MapWashtenaw
• Online Assessment/Property/Tax data
• Washtenaw County Map Gallery

Community

• Crime mapping
• Curbside collection
• Historic districts
• Housing commission
• Incident Response mapping
• Neighborhood associations
• Property information
• Voting 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)
• Medical Marijuana
• Petitions under review
• Plats
• Subdivisions by name
• Zoning

Transportation

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

Utility/Engineering

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