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​Welcome to the City of Ann Arbor's Data Catalog website.  This site is part of our ongoing commitment to enhance citizen participation and local government transparency.  We are pleased to make City datasets freely available to the public in machine-readable formats.

We expect the Data Catalog site to grow over time as we add additional datasets.  By downloading the data, you are agreeing to the Policies and Notices.  When creating these datasets the City has been careful to respect privacy and security concerns.

For questions or comments concerning the City of Ann Arbor Data Catalog please contact the City's IT Director at 734.794.6550.

If you have suggestions for new datasets or enhancements to existing datasets please send your request to DataCatalog@A2gov.org.

 

 Ag​ency/Unit Metadata CSV PDF DOCRSS/
GeoRSS 
KML/
KMZ 
SHP Map
AAGISAATA Bus Stops
AAGIS Building Footprints
AAGIS​Catch Basins
AAGIS City Boundary
AAGIS City Owned Land
AAGIS DDA Boundary 
AAGIS Floodplain
AAGIS Floodway
AAGIS Future LandUse
AAGIS Greenbelt Boundary
AAGIS Greenbelt Properties
AAGIS Historic Districts
AAGISHydrants​
AAGIS LandUse
AAGIS Non City Open Spaces
AAGIS Parks
AAGIS Polling Locations
AAGIS Schools
AAGIS Streetlights
AAGIS Trees
AAGIS University
AAGIS Wards and Precincts
AAGIS Watershed/Creekshed
AAGIS Zoning Districts
City Clerk City Clerk Permits      
Communications Office Public Meetings and City Events Calendar
Finance and Administrative Services Budget Worksheet - Expenses
Finance and Administrative Services Budget Worksheet - Revenues
Finance and Administrative Services Invoice Aging Report
Finance and Administrative Services City of Ann Arbor Monthly Investment Report
Finance and Administrative Services Expense Budget Performance Report
Finance and Administrative Services Employer's Quarterly Federal Tax Return
Finance and Administrative Services Monthly Financial Report
Finance and Administrative ServicesPurchase Card Transactions - Please see A2 Open Book
Finance and Administrative Services Open Purchase Orders
Finance and Administrative Services Revenue Budget Performance Report
Finance and Administrative Services Trial Balance by Fund
Finance and Administrative ServicesYTD Check Register - Please see A2 Open Book
Planning and Development Services Construction Permits
Planning and Development Services Petitions Under Review Bing
Planning and Development Services Planning and Development Projects
​Police Department

Part A&B Case Offenses - Range 2011 to year-to-date

PartAB Offenses.csv
Washtenaw County GIS BOC Districts    
Washtenaw County GIS Hospitals
Washtenaw County GIS Jurisdiction Boundary
Washtenaw County GIS Lakes
Washtenaw County GIS Parcels
Washtenaw County GIS Parks
Washtenaw County GIS Roads
Washtenaw County GIS Schools
Washtenaw County GIS School Districts
Washtenaw County GIS Streams

 

​Agency/Unit - Agency or service unit where the data originates.

Metadata - Data and information that is used to describe datasets. 

 
 CSV - File format that is used by spreadsheet, database, and statistical applications.

 PDF - Portable Document Format intended for sharing documents while maintaining a document's integrity.

 DOC - Microsoft word processing file format.

 RSS/GeoRSS - Web feed format used to publish frequently updated works in a standardized format.  GeoRSS extends the RSS standard and is used for encoding location as part of a web feed.

KML/KMZ - Keyhole Markup Language is an XML-based language schema for displaying geographic annotation.

SHP - Geospatial vector shape file data format for geographic information systems software. ​