The Administrative Guide to State Government presents what an informed person should know about the major processes of state government .
DTMB has multiple Boards and Commissions for which they have administrative oversight.
DTMB Reports to the Michigan legislature organized by fiscal year
The State Administrative Board has general supervisory control over the administrative activities of all state departments and agencies.
Information technology (IT) Policies document the DTMB's authority to establish Standards and Procedures in the specified areas.
At the heart of the DTMB organization are the fundamental governance elements that define the department's authorities, processes, and procedures
The Archives of Michigan is responsible for preserving the records of Michigan government and other public institutions. The collections also include documents, maps, photographs and film from private individuals and organizations.
Cybersecurity information for the state of Michigan and resources for the public. Featuring educational and support information for local government, schools and more.
The State of Michigan Geographic Information Systems (GIS) and Mapping Site provides access to GIS data, and information across the GIS community in Michigan.
DTMB Delivery Services provides comprehensive transport services tailored to the needs of each customer as well as ID Mail and moving services.
DTMB Mail and Delivery Services offers a full range of automated and manual mail handling and delivery services.
The DTMB Real Estate Division provides real estate and occupancy services for State of Michigan agency needs.
Information and services for local government agencies about managing records and data in the most effective, cost efficient, and legally compliant manner.
The State of Michigan’s Enterprise Risk Management (ERM) section is responsible for insuring and protecting the people, property, and activities of state government.
Details on state surplus property, auctions, and eligibility for federal surplus programs.
Information for state employees and vendors, including hotel listings, travel rates, forms, and regulations.
Design & Construction Information
The Contract Connect website provides info to vendors interested in doing business with the State of Michigan. Contract Connect is managed by State of Michigan Procurement.
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This page looks at the most commonly used boundary layers housed in the Michigan Geographic Framework (MGF) Data Hub, many of which are available from the Michigan GIS Open Data Portal. Information on the MGF and Open Data Portal is provided below along with a listing of the various boundary layers, the data authority for those layers, and where they are available. In the Boundary Question and Answer Section, we discuss Annexations, School Districts, Parcels, and Legislative Boundaries in more detail, including the roles of local, state, and federal government and who to contact with questions, concerns, or corrections.
Learn more about the history and development of the Michigan Geographic Framework (MGF)
While the MGF is the hub for Michigan's geospatial data, the Michigan GIS Open Data Portal is where you can find all publicly available data including statewide boundary data. From the Open Data Portal, you can search for data not just within DTMB CSS, but across local, state, and federal agencies. It is your one stop shop for GIS data in Michigan.
| Layer | Description | Available in Open Data? |
| County | The County layer is maintained by CSS. Counties are the primary legal divisions within the state and as a rule do not change, although occasionally errors are found requiring correction and a new release. Counties are available for download on the Open Data Portal. | Yes |
| MCD | MCD or Minor Civil Division refers to the governmental and administrative subdivisions within counties. In Michigan, the MCD layer contains township and city data for the state. It is available on the Open Data Portal. In addition, a City layer derived from the MCD layer is also available. The MCD boundaries are maintained by CSS and is updated throughout the year. Currently, updates are released annually but may be available more frequently in the future. Learn more about MCDs here. | Yes |
| Village | As the name implies, the Village layer contains village boundaries for the state. Villages are not included with the MCD because in Michigan they remain tied to the township as opposed to cities that maintain their own governments. CSS maintains the Village layer, which is updated in the same cadence as MCDs. It is available for download on the Open Data Portal. | Yes |
| School Districts and ISDs | A school district is an educational unit designated by the state based on a number of factors, including geographic proximity to K-12 schools or primary schools. ISDs or Intermediate School Districts consist of groupings of contiguous school districts, provide administrative support to those districts, and interact with the Michigan Department of Education (MDE). Learn more about school districts here. | Yes |
| Legislative Boundaries and Voting Precincts | The legislative boundaries consist of the Michigan State House, State Senate, and the U.S. Congress. The source for the latest boundaries is the Independent Citizens Redistricting Commissions (ICRC) and information on the redistricting process and boundary data produced by the commission are available on their website at Michigan Independent Citizens Redistricting Commission. Copies of the legislative boundaries also reside in the MGF and are also available for download on the Open Data Portal. | Yes |
| PSAP | A PSAP or Public Safety Answering Point is responsible for receiving 911 calls and dispatching emergency services within the bounds of its jurisdiction. Individual PSAP layers are maintained by the PSAP or a designated vendor and updated on an as required basis. A single layer containing all the PSAPs is maintained by the CSS for download on the Open Data Portal. Learn more about PSAPs here. | Yes |
| Tax Parcels | Parcels are individual properties within a city, township, or village and are zoned for different types of land use, development, and taxation. Parcels are maintained by individual counties. While the MGF does store a statewide parcel layer, this data is for internal use only and is not available in the Open Data Portal. Parcel layers are available on individual county websites and may have a fee associated with downloading. Find county parcel download information here. | No - download through county sites here |
Visit our Frequently Asked Questions page for more information on boundaries, MGF, and points of contact
