Boundary Data
Visual. Precise. Accurate.
Visual Mapping of Boundaries Data Brings Clarity to Decisions
Enhance your business processes with highly accurate location information for various map-oriented applications including listing portals, research tools, business intelligence mapping, public safety, and demographic applications. ATTOM has the most extensive boundary data for more than 158 million properties nationwide with flexible delivery solutions, such as APIs, bulk files, match & append, and more.
- Develop online or desktop mapping apps that display property information including internet listing portals or online research tools.
- Create analytics models with site location and risk analyses requiring highly accurate location information, such as boundaries data on flood zones or county fees.
- Provide robust research to clients on a given area for investment purposes.
- Drive traffic to their site by providing accurate property information to buyers, such as school attendance zones and other points of interest within a specific neighborhood.
- Make data-driven decisions based on updated area and neighborhood boundary data encompassing population and local planning initiatives.
- Make informed decisions using data to understand school utilization and other community planning objectives.
ATTOM’s Spatial Boundary Data Is Second to None
ATTOM has the largest database of spatial data for access to area and neighborhood boundaries. It starts with a hierarchy of macro-neighborhoods, neighborhoods, and sub-neighborhoods. The data is defined by multiple authoritative sources such as local government, real estate, tourism, local media, and customer feedback.
Parcel Boundary Data
Parcel boundary data includes all the properties within a county updated as property boundaries are split, combined, or modified. Parcel boundary data is sourced using geographical information systems (GIS).
School Attendance Areas
Define the area within which students are assigned to regular, neighborhood schools based on their location of residence. These are researched and hand-digitized by our in-house GIS Team.
School District Boundaries
Define the area within which a school district is financially responsible for the education of resident students. These are researched and hand-digitized by our in-house GIS Team.
Building Footprints
Offers a detailed national map featuring over 187 million building outlines, using advanced AI algorithms to accurately capture the shape and perimeter of structures for enhanced planning and analysis.
Neighborhood Boundaries
This is a multi-level, hierarchical product with boundaries and names which reflect the consensus opinion of local residents. These are researched and hand-digitized by our in-house GIS Team.
Residential Subdivisions
This product contains boundaries for purely residential areas, including subdivisions, condos, townhomes, and apartments. These are researched and hand-digitized by our in-house GIS Team.
Census Boundaries
This dataset includes State, County, County Subdivision, Place, Tract, Block Group, Core Based Statistical Area, and other boundary layers.
Postal Boundaries
Zip Code and Postal City Boundaries are researched and hand-digitized by our GIS Team using information from the United States Postal Service.
Canadian Boundaries
This dataset includes Neighborhoods, Residential, Parcels, and Census Boundaries for Canada.
Flood Zones
A geospatial database that contains current effective flood hazard data. FEMA provides flood hazard data to support the National Flood Insurance Program and to add transparency to flood risk and types of flooding.
How Can You Use ATTOM’s Boundaries Data?
Real Estate
Create online maps of neighborhoods and school zones.
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Education
Use data to determine when and if school and educational institution boundaries need to be altered to accommodate changing populations and markets.
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Government
Understand the demographics of residential areas and assess the population and neighborhoods to target.
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Insurance
Use geographic data on natural hazards for an accurate risk assessment.
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Mastering Location: How ATTOM Boundary Data Powers Precision
In today’s data-driven landscape, understanding location with precision is key to making smarter business decisions. From real estate search portals to government planning tools, accurate boundary data powers the platforms we rely on every day. Listen in as we explore how ATTOM’s industry-leading boundary datasets — including neighborhoods, school zones, and parcel boundaries — are helping companies visualize markets, reduce risk, and deliver hyperlocal experiences.
What is Boundary Data?
Boundary data is geospatial information that defines the physical and administrative borders of areas such as parcels, neighborhoods, school zones, ZIP codes, and more. In real estate, this data provides essential context, helping users understand exactly where a property sits and what zones or designations it falls within. ATTOM’s boundary data enables precise mapping, risk analysis, and location intelligence across a wide range of industries.
ATTOM’s Data is Your Business Advantage
Comprehensive
A multi-sourced, enhanced national warehouse that contains information on more than 158 million U.S. properties including:
- 70+ Billion Rows of Data
- 9,000 Data Fields
- 30TB Warehouse
- 99% Population Coverage
Flexible
Access ATTOM through a variety of flexible solutions to consume the most efficient real estate data for your specific business needs including:
Quality Data
- Property Address Standardization
- Owner Name Parsing
- ATTOM ID Matching
- Fusion of Multi-Sourced Data
- Data Governance
Learn more about ATTOM and view our Table of Data Elements.
