Description
The 2015 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master
Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are
specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the
hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year.
Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others
are available only as state-based files.
The cartographic boundary files include both incorporated places (legal entities) and census designated places or CDPs (statistical
entities). An incorporated place is established to provide governmental functions for a concentration of people as opposed to a minor
civil division (MCD), which generally is created to provide services or administer an area without regard, necessarily, to population.
Places always nest within a state, but may extend across county and county subdivision boundaries. An incorporated place usually is a
city, town, village, or borough, but can have other legal descriptions. CDPs are delineated for the decennial census as the
statistical counterparts of incorporated places. CDPs are delineated to provide data for settled concentrations of population that are
identifiable by name, but are not legally incorporated under the laws of the state in which they are located. The boundaries for CDPs
often are defined in partnership with state, local, and/or tribal officials and usually coincide with visible features or the boundary
of an adjacent incorporated place or another legal entity. CDP boundaries often change from one decennial census to the next with
changes in the settlement pattern and development; a CDP with the same name as in an earlier census does not necessarily have the same
boundary. The only population/housing size requirement for CDPs is that they must contain some housing and population.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Feature Catalog for the 2015 State-Place 1:500,000 KML File | XML | The Entity and Attributes | Open resource |
| KML Files | HTML | Simplified representations of selected geographic areas from the Census Bureau's MAF/TIGER geographic database | Open resource |
| Cartographic Boundary Shapefiles | HTML | Simplified representations of selected geographic areas from the Census Bureau's MAF/TIGER geographic database | Open resource |