Update Frequency: Daily

Master Property Record, or MPROP as it is commonly called, is a table containing a assessment record for each property in the city. It contains more than 90 elements of data describing each of the approximately 160,000 properties in the city. The file was created in 1975 to provide current and accurate property information with enough flexibility to be accessed in a variety of ways. Since it was implemented and made available, the data has become invaluable and is currently used by nearly every city department. This same data is now being broadly distributed in a format that is compatible with commonly available computer equipment and operating systems.

• NOTE: information on properties that are not assessed by the City of Milwaukee (manufacturing and tax exempt properties including city owned real estate) is limited and not maintained.

To download XML and JSON files, click the CSV option below and click the down arrow next to the Download button in the upper right on its page.

Update Frequency: Annually

To download XML and JSON files, click the CSV option below and click the down arrow next to the Download button in the upper right on its page.

City of Milwaukee parcel polygons - attribute table includes every field/column from the MPROP table - polygons representing condominiums are "stacked" (one polygon per taxkey) MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Data is selected from the MPROP to create a data driven visualization.

To download XML and JSON files, click the CSV option below and click the down arrow next to the Download button in the upper right on its page.

Parcels that have been identified as vacant lots based on MPROP land use codes of 8880 or 8885. MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Update frequency: Current datasets are refreshed every night to ensure the most current information is available. Even if there are no changes, the data will be updated nightly.

These files contain the City of Milwaukee parcel polygons.

Historical parcel shapefiles for the City of Milwaukee are available for download here, in ESRI shapefile format, back to 2001. We do not have parcel shapefiles for years before 2001.

Starting in December, 2011, we will begin posting end-of-year snapshots of our parcel shapefiles. This will provide greater accuracy when joining MPROP to parcels (relate key = TAXKEY). For years before 2011, parcel shapefiles and MPROP will join will less accuracy, as taxkeys are added and removed throughout the year.

Starting in 2009, parcel shapefiles have a record for every taxkey - including every condominium unit. The shapefiles dated earlier than 2009 do not accommodate the many-to-one nature of condominiums, and MPROP will not join to the condominium parcels.

All shapefiles are projected in Wisconsin State Plane South NAD27 (WKID 32054)

To download XML and JSON files, click the CSV option below and click the down arrow next to the Download button in the upper right on its page.

Parcels that have been identified as churches or religious organizations based on MPROP land use code 8661. MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Update Frequency: As Needed

Land Use Code definitions used in the Master Property File (MPROP).

To download XML and JSON files, click the CSV option below and click the down arrow next to the Download button in the upper right on its page.

Parcels classified by assessment class. MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Parcels classified by land use group. MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Update frequency: Datasets are refreshed every night to ensure the most current information is available. Even if there are no changes, the data will be updated nightly._

Parcels that have been identified as parks or parkways based on MPROP land use codes of 8870 (park) or 8871 (parkway) or 8860 (playground). MPROP documentation: https://itmdapps.milwaukee.gov/gis/documentation/mprop%20documentation.pdf

Update frequency: Datasets are refreshed every night to ensure the most current information is available. Even if there are no changes, the data will be updated nightly._

Parcels that have been identified as elementary or secondary schools based on MPROP land use code 8211. This data will involve parcels that are not recognized as official schools by Milwaukee Public Schools. MPROP documentation: http://itmdapps.milwaukee.gov/gis/mprop/Documentation/mprop.pdf

Polygons representing tax parcels in the City of Milwaukee; condominium polygons are "stacked" - one polygon per condominium TAXKEY value.

Parcels with MPROP and map layers based on mprop values. Layers include: assessment class, residential assessed value, occupance status, tax delinquent, tax exempt, foreclosure estimates, land use, parks and parkways, vacant lots, schools, day care centers, churches/religious organizations, and land use groups.

Parcels with MPROP and map layers based on mprop values. Layers include: assessment class, residential assessed value, occupance status, tax delinquent, tax exempt, foreclosure estimates, land use, parks and parkways, vacant lots, schools, day care centers, churches/religious organizations, and land use groups.

"Government Ownership" is identified by a property's tax exempt status and subsequent exempt class, as it is stored in MPROP. Tax exempt status and classification data are maintained by the City of Milwaukee Assessor's Office. Tax exemption information is tied to the assessment year, so all tax exemption data represents the previous calendar year. Properties whose exempt status changes this year will not be recoreded until next calendar year.

This layer does not represent of comprehensive inventory of City of Milwaukee Real Estate holdings.

Tax exempt status and classification data are maintained by the City of Milwaukee Assessor's Office.