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Data Catalog
Frequently Asked Questions
Terms of Use

​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. Your use of the datasets on this site is governed by the City's Terms of Use.  By downloading the data, you are agreeing to these Terms of Use.  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.

If you have suggestions for new datasets or enhancements to existing datasets please send your request to


 Agency/Unit Metadata CSV PDF DOCRSS/
AAGISBuilding Footprints
AAGIS​Catch Basins
AAGISCity Boundary
AAGISCity Owned Land
AAGISDDA Boundary 
AAGISFuture LandUse
AAGISGreenbelt Boundary
AAGISGreenbelt Properties
AAGISHistoric Districts
AAGISNon City Open Spaces
AAGISPolling Locations
AAGISWards and Precincts
AAGISZoning Districts
City ClerkCity Clerk Permits     
Communications OfficePublic Meetings and City Events Calendar
Finance and Administrative ServicesBudget Worksheet - Expenses
Finance and Administrative ServicesBudget Worksheet - Revenues
Finance and Administrative ServicesInvoice Aging Report
Finance and Administrative ServicesCity of Ann Arbor Monthly Investment Report
Finance and Administrative ServicesExpense Budget Performance Report
Finance and Administrative ServicesEmployer's Quarterly Federal Tax Return
Finance and Administrative ServicesMonthly Financial Report
Finance and Administrative ServicesPurchase Card Transactions - Please see A2 Open Book
Finance and Administrative ServicesOpen Purchase Orders
Finance and Administrative ServicesRevenue Budget Performance Report
Finance and Administrative ServicesTrial Balance by Fund
Finance and Administrative ServicesYTD Check Register - Please see A2 Open Book
Planning and Development ServicesConstruction Permits
Planning and Development ServicesPetitions Under ReviewBing
Planning and Development ServicesPlanning and Development Projects
Washtenaw County GISBOC Districts    
Washtenaw County GISHospitals
Washtenaw County GISJurisdiction Boundary
Washtenaw County GISLakes
Washtenaw County GISParcels
Washtenaw County GISParks
Washtenaw County GISRoads
Washtenaw County GISSchools
Washtenaw County GISSchool Districts
Washtenaw County GISStreams





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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

 DOC - Microsoft word processing file format

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

  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




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