This layer displays the point locations of all providers of service (POS) in the U.S. The POS database contains the addresses and characteristics of all health care providers, including hospitals, skilled nursing facilities, rural health clinics, and more.
FEMA Flood Hazard Zones
The Flood Hazard Zones are extracted from the National Flood Hazard Layer, which is a database that contains FEMA’s flood hazard map data. The database contains flood hazard information and supporting data used to develop the information. The primary flood hazard classification is indicated in the Flood Hazard Zones layer.
Flood zones are geographic areas that FEMA has defined according to varying levels of flood risk and type of flooding. For complete information about different flood zone designations, please visit the Definitions of FEMA Flood Zones web page.
Flood Hazard Zone Descriptions:
Floodway: The stream channel and that portion of the adjacent floodplain which must remain open to permit passage of the base flood.
1% Annual Chance Flood Zone: The 100-year or base floodplain.
0.2% Annual Chance Flood Zone: Area of moderate flood hazard, usually the area between the limits of the 100-year and 500-year floodplains, but also shallow flooding areas (< 1 foot) or flood zones for small drainage areas (< 1 square mile).
Area with Reduced Risk Due to Levee: Areas protected by levees from the 100-year flood.
1% Annual Chance Future Considerations: The 100-year floodplain based on anticipated future land-use conditions.
Area of Undetermined Hazard: Area of undetermined but possible flood hazard, typically occurring in counties with partial flood studies.
This information was acquired by state-level release February, 2020. Data release dates by state range from December 07, 2016 (Vermont) to February 12, 2020 (Utah).
Location Affordability Index for Family at AMI
This layer displays the estimated percentage of household income for housing and transportation for a family earning the Area Median Income (AMI). The expected values for housing and transportation are modeled by HUD using data from the US Census Bureau and the US Department of Transportation, including:
- The average household size for a family earning AMI in the neighborhood
- The average number of workers, vehicles, and vehicle miles travelled for a family in the neighborhood
- The average utility and rental costs or average utility and mortgage costs for a housing unit to accommodate the family size above
- The proportion of housing units that are either rentals or owner-occupied in the neighborhood
Note: The LAI does not predict what families are actually paying to live in a particular area, but rather what a family would pay (either in USD or as a percentage of income) if average or reasonable housing and commuting conditions for a particular neighborhood were achieved.
Location Affordability Index for Family Below AMI
This layer displays the estimated monthly cost for housing and transportation for a low-income, single-parent family (earning 50% of the Area Median Income). The values for housing and transportation are modeled by HUD using data from the US Census Bureau and the US Department of Transportation, including:
- The average household size for a single-parent family earning 50% AMI in the neighborhood
- The average number of workers, vehicles, and vehicle miles traveled for a family in the neighborhood
- The average utility and rental costs or average utility and mortgage costs for a housing unit to accommodate the family size above
- The proportion of housing units that are either rentals or owner-occupied in the neighborhood
Note: The LAI does not predict what families earning 50% AMI are actually paying to live in a particular area, but rather what a family would pay (either in USD or as a percentage of income) if average or reasonable housing and commuting conditions for a particular neighborhood were achieved.
Cropland Data Layer
This layer displays the Cropland Data Layer (CDL) developed by the USDA National Agricultural Statistics Service (NASS). The CDL is a raster, geo-referenced, crop-specific land cover data layer created annually for the continental United States using moderate resolution satellite imagery and extensive agricultural ground truth. The CDL has a ground resolution of 30 meters, and is validated using data from the USDA Farm Services Agency and United States Geological Survey. Historical CDL products are available for use and free for download through CropScape (https://nassgeodata.gmu.edu/CropScape/).
Wildfire Perimeters
The layer displays historic wildland fire perimeters. The Geospatial Multi-Agency Coordination group, or GeoMAC, is an internet-based mapping tool originally designed for fire managers to access online maps of current fire locations and perimeters in the U.S. Perimeters are submitted to GeoMAC by field offices and made available to the public. Perimeter data is not the final or official perimeter for any incident and is provided for informational purposes only. The final official perimeter should be obtained from the host unit which can be determined by looking at the Unit ID for any specific fire.
Top Commodity Produced
This layer displays the top commodity produced in each state and county by sales.
Watershed Boundary Dataset, 10-Digit Hydrologic Units
The 10-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the fifth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with single or multiple outlet points. A 10-digit hydrologic unit, or watershed, divides sub-basins into smaller management areas. There are 18,679 10-digit hydrologic units with an average size of 226 square miles (585 sq. km.).
Watershed Boundary Dataset, 12-Digit Hydrologic Units
The 12-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the sixth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with single or multiple outlet points. A 12-digit hydrologic unit, or subwatershed, supports water resource management and planning activities at a localized and site-specific level. There are 101,779 12-digit hydrologic units with an average size of 41 square miles (107 sq. km.).
Multi-Family Assisted Housing
Layer displays the approximate locations of Multifamily Assisted Housing properties that are monitored by the US Department of Housing and Urban Development (HUD). The three largest assistance programs for Multifamily housing are Section 8 (Project Based Assistance), Section 202 (Supportive Housing for the Elderly), and Section 811 (Supportive Housing for Persons with Disabilities).