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LA County Street & Address File

Current data date: June 2014

Important note: This is the first output of the final data structure. In the next few weeks we will begin providing weekly updates as well as a number of related symbolization files.

Data Download

Click here to download the current dataset (zipped shapefile format) Related layer files for [...]

NOAA merged Bathymetry & Topography DEM

NOAA’s Bathymetry website (http://ngdc.noaa.gov/mgg/bathymetry/relief.html) has an integrated DEM and Topgraphy dataset at 10 meter resolution for download.

The Santa Monica quad (found via the NGDC bathymetry website) covers all the waters of LA County and is available in two different vertical datums:

http://www.ngdc.noaa.gov/dem/squareCellGrid/download/663 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/726 [...]

USGS Map Services

The USGS supports a number of map services:

These allow you to view nationwide data from The National Map in your GIS software. To use these in ArcGIS – select Add Data button then choose GIS Server from the list, then “add ArcGIS Server”

 

To add the tiled map cache (these are background topographic [...]

Coastal LIDAR data from NOAA

The California Ocean Protection Council, in partnership with USGS and NOAA Coastal Services Center, funded a LiDAR data collection effort along the California coast and San Francisco Bay, between 2009-2011. The data were made available last year through the NOAA Coastal Service Center’s Digital Coast Data Access Viewer.

The entire LiDAR [...]

2011 LAR-IAC Imagery – Public Domain (1 foot) – FREE

USGS Earth Explorer

This dataset represents natural color, leaf-off, 1 foot high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011, and made public with the partnership of the US Geological Survey (USGS). The DEM represents bare earth, whereas a related product (DSM) contains elevations and includes [...]

100 Meter National Grid – Los Angeles County

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100 Meter National Grid for Los Angeles County

US Geological Survey (USGS) Topographic Maps

Layering

The US Geological Survey has made its standard topo maps available for download through The National Map Viewer. NOTE – through research I have found that the USGS topo Store is a better place to go to download the maps. Click here to go to the store

There are now [...]

USGS site for LIDAR and Elevation Data

USGS CLICK site

This site is a valuable resource for downloading LIDAR and Elevation data, including recent hi-resolution LIDAR along the coastlines of the United States.

Click to go to the USGS Center for LIDAR Information Coordination and Knowledge (CLICK).

Weather related GIS data

NOAA provides a wealth of GIS data, including updates of its weather predictions.

Here are some useful links:

The NWS GIS Data Portal, where you can download kml and shapefiles. From there, you can go to: The NWS Web Services Page, where you can get the connection information for live [...]

Census Data and Boundaries (Historic)

NHGIS Site

The National Historical Geographic Information System (NHGIS) website recently is an incredibly valuable tool for historic demographics information. You just need to register.

From their site:

The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States [...]

Census Blocks (2010)

Census Geography Background

The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data [...]

Census Tracts (2010)

Census Geography Background

The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data with [...]

FCC Licensing Database Extracts

The FCC makes a number of datasets available that cover the various communications data out there.

Their primary GIS data download page is here: http://wireless.fcc.gov/geographic/index.htm?job=licensing_database_extracts

To download LA County Data

The LA County extract of this data is part of the Locations/Points of Interest dataset that is available for download from this site. [...]

DMSP Live Satellite Imagery

Defense Meteorological Satellite Program (DMSP), low, earth-orbiting satellites have provided the military with important environmental information.

Some cool things you can find:

Nighttime lights of the world – – here’s a KMZ file I downloaded: DMSP_Nighttime_Lights.kmz Visible and Infrared imagery

Link to their sensors: http://www.ngdc.noaa.gov/dmsp/sensors.html

The DMSP satellites “see” such environmental [...]

Watershed Boundaries

This dataset contains watershed boundaries for watersheds covering Los Angeles County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features [...]

Hydrologic Points

This dataset contains hydologic points (gaging stations, gates, rock features, springs, water intakes, wells, waterfalls, reservoir points) in LA County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide [...]

Lakes & Reservoirs

This dataset contains lakes & reservoirs in LA County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features and conveyance. [...]

Rivers, Streams, Water Conveyance (pipelines, aqueducts)

This dataset contains rivers, streams, and water conveyance mechanisms (pipelines, aqueducts).

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features [...]

2010 TIGER Roads

The TIGER road file is a street centerline network used by the US Census Bureau to help locate and find citizens during its decennial census.

Historically this file has had a number of identified issues with its geographic accuracy, but the 2010 file has been tested by LA County and found to be highly accurate [...]

Alternative Fuel Stations

I downloaded and created a data layer of alternative fuel stations from NREL – I look forward to adding to our service locator and various maps.

Here is a link to a download from NREL for alternative fuel stations: http://www.afdc.energy.gov/afdc/data_download/

Data links:

Alternative Fuel Stations (United States) – zipped shapefile