Geospatial data about Montgomery County, Maryland Parcels. Export to CAD, GIS, PDF, CSV and access via API.

This data represents all of the County’s residential real estate properties and all of the associated tax charges and credits with that property processed at the annual billing in July of each year, excluding any subsequent billing additions and/or revisions throughout the year. This dataset excludes the names of the property owners. The addresses in this database represent the address of the property. For more information about the individual taxes and credits, please go to http://www.montgomerycountymd.gov/finance/taxes/faqs.html#credit. Update Frequency: Updated Annually in July

This dataset contains the mailing address of all businesses that operate in Montgomery County that have filed with the Maryland State Department of Assessment and Taxation. The information displayed in this dataset is based on a business being billed for their business personal property tax. Businesses are billed for this tax annually based on their filing date. The County sends out these tax bills monthly throughout the year. As such, this dataset which is updated annually, is a snapshot of the annual billing cycle as of October 2021. The following will affect the number of records in this dataset for this levy year: • The filing extension to July 15, 2022. • Tax Property Article, 7-245 which includes an exemption from business personal property assessment for business entities with assets having a total cost of less than $2,500.

The Levy Year 2012 real property tax rate dataset reflects all the rates per $100 set each year by the County Council. These rates are applied to the assessed value of the real property to derive the applicable ad valorem tax. The fully phased-in assessed value equals the full cash value of the property. The real property tax is levied annually on all taxable land and improvements. The tax rate schedule is updated annually. A detailed tax rate schedule for all tax classes is available by clicking on “Tax Rates” under the link for “County Taxes” when visiting the County website at www.montgomerycountymd.gov/finance or by calling 311 (240-777-0311). Update Frequency: Annually

Graph and download economic data for Market Hotness: Listing Views per Property in Montgomery County, MD (LDPEPRMMCOUNTY24031) from Sep 2017 to Jun 2025 about Montgomery County, MD; Washington; MD; listing; and USA.

The table below showcases the 10th, 25th, 50th, 75th, and 90th percentiles of assessed property values for each zip code in Rockville, Maryland. It's important to understand that assessed property values can vary greatly and can change yearly.

Please read all metadata before accessing the dataset. Note that records shown here are updated at different frequencies from data in products from MDP and SDAT. Please see the full documentation at https://opendata.maryland.gov/api/views/ed4q-f8tm/files/WtRzMltUzm25OasOCYtu7PgOGUfrplWsZTalSH4Iukg?download=true&filename=Real%20Property%20Records%20Documentation.pdf and review the dedicated metadata site (https://opendata.maryland.gov/dataset/Beta-Maryland-Statewide-Real-Property-Assessments-/ed4q-f8tm/about).

The table below showcases the 10th, 25th, 50th, 75th, and 90th percentiles of property tax rates for each zip code in Rockville, Maryland. It's important to understand that tax rates can vary greatly and can change yearly.

This data represents all of the County’s residential real estate properties and all of the associated tax charges and credits with that property processed at the annual billing in July of each year, excluding any subsequent billing additions and/or revisions throughout the year. This dataset excludes the names of the property owners. The addresses in this database represent the address of the property. For more information about the individual taxes and credits, please go to http://www.montgomerycountymd.gov/finance/taxes/faqs.html#credit.

Update Frequency: Updated Annually in July

Land can be protected through an agreement called a Deed of Conservation Easement. This is a legal agreement between a landowner and a land trust (like Maryland Environmental Trust), which restricts the future uses of the landowner's property. It applies to all future owners of the property.For more information, contact: GIS Manager Information Technology & Innovation (ITI) Montgomery County Planning Department, MNCPPC T: 301-650-5620

The County's Water and Sewer Plan assigns a water category and a sewer category to every property in the County. These service area categories serve two functions:They identify areas approved or planned for community water or sewer service and areas intended for service by individual (on-site) systemsThey identify a mechanism for staging community service for those areas planned for community service. The mechanism consists of the use of service area categories W-1 through W- 5 (for water) and S-1 through S-5 (for sewer).The Maryland Department of the Environment (MDE) requires the County to prepare a comprehensive update of the Water and Sewer Plan every three years. Between comprehensive updates, the County approves amendments to the plan (such as service area categories, new or revised policies, and technical information) through procedures described in Chapter 1 of the Plan. The County Executive, acting through the Department of Environmental Protection (DEP), prepares the Plan's comprehensive updates and also provides recommendations to the Council for action on proposed amendments. DEP, with the assistance of other agencies, develops some amendments, typically those that involve policy issues or category changes that affect groups of properties. Property owners also propose amendments, usually those involving category changes for single properties or larger tracts intended for subdivision of new lots. Under state law, the County Council is responsible for approving the plan and its amendments. MDE maintains an oversight authority over the County’s Water and Sewer Plan and its amendments. The agency administers regulations that each county must follow in the preparation of its comprehensive plan, and acts to approve, approve with modifications, or disapprove the Plan or any Plan amendment submitted by the County. As part of this process, MDE seeks guidance from the Maryland Department of Planning for consistency with local and State planning use goals, policies and objectives.For more information, contact: GIS Manager Information Technology & Innovation (ITI) Montgomery County Planning Department, MNCPPC T: 301-650-5620

Montgomery and Prince George's counties project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83 (HARN), State Plane, Feet and vertical datum of NAVD88 (GEOID12B), Feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to 1,413 individual 4000 ft x 6000 ft tiles, as tiled Intensity Rasters, and as tiled bare-earth DEM; all tiled to the same 4000 ft x 6000 ft schema. Ground Conditions: Lidar was collected in early to mid 2018, while no snow was on the ground and rivers were at or below normal levels. Sensor errors in mulitple locations were identified in processing, additonal acquisition on 7/20/2018 was completed to remedy the errors. 2016 lidar data was used with approval in a single area of restricted airspace. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc. established a total of 23 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 79 independent accuracy check points in Open Terrain and Urban landcovers were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data.This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov.Image Service Link: https://mdgeodata.md.gov/lidar/rest/services/Montgomery/MD_montgomery_dem_m/ImageServer

Market Hotness: Listing Views per Property in Montgomery County, MD was -29.43009 % Chg. from Yr. Ago in May of 2025, according to the United States Federal Reserve. Historically, Market Hotness: Listing Views per Property in Montgomery County, MD reached a record high of 134.66004 in June of 2020 and a record low of -37.99211 in August of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Market Hotness: Listing Views per Property in Montgomery County, MD - last updated from the United States Federal Reserve on July of 2025.

This data represents all of the County’s residential real estate properties and all of the associated tax charges and credits with that property processed at the annual billing in July of each year, excluding any subsequent billing additions and/or revisions throughout the year. This dataset excludes the names of the property owners. The addresses in this database represent the address of the property. For more information about the individual taxes and credits, please go to http://www.montgomerycountymd.gov/finance/taxes/faqs.html#credit.

Update Frequency: Updated Annually in July

Graph and download economic data for U.S. Granted Utility Patents Originating in Montgomery County, MD (PATENTCOUNTY24031) from 2000 to 2015 about Montgomery County, MD; patent granted; intellectual property; origination; patents; Washington; MD; and USA.

Market Hotness: Listing Views per Property Versus the United States in Montgomery County, MD was 0.76352 Ratio in May of 2025, according to the United States Federal Reserve. Historically, Market Hotness: Listing Views per Property Versus the United States in Montgomery County, MD reached a record high of 1.21430 in December of 2016 and a record low of 0.54528 in July of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Market Hotness: Listing Views per Property Versus the United States in Montgomery County, MD - last updated from the United States Federal Reserve on July of 2025.

Graph and download economic data for Combined Violent and Property Crime Offenses Known to Law Enforcement in Montgomery County, MD (DISCONTINUED) (FBITC024031) from 2004 to 2021 about Montgomery County, MD; crime; violent crime; property crime; Washington; MD; and USA.

This dataset contains the mailing address of all businesses that operate in Montgomery County. Zip codes are the postal delivery areas defined by USPS. Zip codes with mailboxes only are not included. Updated annually.

At the request of some County users of this layer, TEBS-GIS automatically adds latitude and longitude fields to this data with its weekly update from MNCPPC.Access directly in the TEBS-GIS database in SDE.PROPERTIES, SDE.Property_pts_with_data

This dataset includes County spending data for Montgomery County government. It does not include agency spending. Data considered sensitive or confidential and will be encrypted before it is posted.