How do I download shapefiles from the Census Bureau?
Start at the U.S. Census Bureau’s TIGER website: http://www.census.gov/geo/maps- data/data/tiger-line. html. Select the tab for the version of TIGER/Line Shapefiles (e.g. 2012) you would like to download. Click on Download and choose Web interface.
What is a block group in census data?
Block Groups (BGs) are statistical divisions of census tracts, are generally defined to contain between 600 and 3,000 people, and are used to present data and control block numbering.
What is the difference between census tracts census block groups and census blocks?
A block group is a subdivision of a census tract and contains a cluster of blocks. Block groups usually have between 250 and 550 housing units. A census block is the smallest geographic census unit. Blocks can be bounded by visible features—such as streets—or by invisible boundaries, such as city limits.
Where can I find shapefiles?
You may find more current shapefiles for the United States from the U.S. Census Bureau . These shapefiles are made available for use with Epi Info™ and Epi Map only. The administrative shapefiles provided here are in ESRI shapefile format and are contained in self-extracting WinZip EXE files.
How can I get shapefiles for free?
Shape Viewer is a free tool, which you can use to view Esri Shapefiles. You can still download the software although it was lasted updated in 2005. Natively supports wide range of vector, image, grid data formats and WMS, WFS, and WMTS services opened from the web.
How do I download shapefiles for free?
Thousands of shapefile maps can be downloaded for free from the following website https://extract.bbbike.org , including water, natural, palace, landuse, roads, and other shapefiles maps. The shapefile (or ESRI shapefile) format is a geospatial vector format, and is one of the most commonly used map formats.
What is the 2010 Census Block map series?
The 2010 Census Block Map Series, also referred to as the Geographic Unit (GU) block maps, is produced to support the 2010 Decennial Census data release. These maps display tabulation geography down to the census block level.
How many geodatabases are in the block group geography?
These geodatabases join the block group geography from the TIGER/Line Shapefiles to the 2006-2010 American Community Survey 5-year estimates for 69 tables.
Does the Tiger/Line/shapefiles contain demographic data?
The core TIGER/Line Files and Shapefiles do not include demographic data, but they do contain geographic entity codes (GEOIDs) that can be linked to the Census Bureau’s demographic data, available on data.census.gov. All legal boundaries and names are as of January 1, 2021.
How many water blocks are in the 2010 TIGER/Line shapefiles?
The 2010 TIGER/Line Shapefiles contain 633 water blocks that should be coded to no congressional district and are incorrectly assigned to congressional districts 1, 2, 5, 6, 9, 10, and 12-15.