Topographically Integrated Geographic Encoding and Referencing (TIGER) is a series of spatial data releases managed by the US Census Bureau. Many of its smaller area geographic divisions known as Census tracts and blocks are used as a standard in spatial analyses.

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Merging and snapping Tiger line files

I have several adjacent (county level) TIGER road files. I want to merge them and create one contiguous file of snapped roads for the purpose of doing network analysis. Merging them is easy but ...
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3answers
711 views

Downloading multiple files from TIGER FTP site

Hello everyone! I've been downloading TIGER data per county from the FTP site one at a time, with some states having hundreds of files. I was curious if there was a faster way to download maybe all ...
2
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1answer
200 views

Collapsing the multi-row output of a one-to-many spatial join to single-row (arcmap 10.1)

I'm working with TIGER data, looking at the relationships among incorporated places and counties. Not all places are completely contained by counties; some do span multiple counties. In the final ...
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1answer
128 views

How to geocode addresses that are outside Address Ranges of source layer?

Im using TIGER lines to geocode a table of addresses. Say for instance the address range for a street is 1100-1200. What would be the best way to match an address such as 1094?
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66 views

How to write unique ID(s) of polygons in layer A intersecting polygons in layer B to field in layer B?

I'm working in ArcGIS 10.1. Suppose that I have two polygon layers, A and B. Polygons in layer B can have one of a few relationships to those in layer A: They may be completely contained by ...
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1answer
92 views

ArcMap Geoprocessing Operation to create a layer with incorporated places and, separately, surrounding unincorporated portion of a county?

I am working with TIGER FILES, attempting to use the update (analysis) operation in ArcMap 10.1. The files I'm using are counties, and the incorporated (non-CDP) segment of the places file. I'm ...
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1answer
143 views

Vector Layers are not lining up and are scaled differently

Hey I am a first time user of GIS and I am working for a transportation map of North Carolina for a project at my work. So what I have been doing is first placing the Tiger County Boundary by using ...
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0answers
127 views

Identifying shapes in TIGERweb WMS SVG

I'm using the US Census WMS service describe here. Using code similar to that found in this example, but specifying a data format of "image/svg+xml", I've been able to get the TIGERweb WMS service to ...
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4answers
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Where can I find base data shapefiles for whole US?

I am looking for the base layers for whole U.S. - roads, hydrological lines etc with flexibilities of changing symbology and labels. TIGER is a good source but it is at county level. I am running on ...
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1answer
76 views

How does ogr2ogr determine which transformation to use and how big would the introduced error be?

I want to convert TIGER data GEOGCS["GCS_North_American_1983", DATUM["North_American_Datum_1983", SPHEROID["GRS_1980",6378137,298.257222101]], PRIMEM["Greenwich",0], ...
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2answers
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How to reduce the file size of GeoJSON data?

For my project I am trying to convert the tiger shapefile information for us states into GeoJSON format However when I use the ogr2ogr tool the data file is about 20 MB. I have seen the geoJSON file ...
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Specification for US Census GEOID?

I'm writing a program that needs to generate GEOID values from 2000 and 2010 Census data, to link the census data to TIGER/Line records. I'm starting with the state, county, region block, etc, values ...
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1answer
1k views

Where can I get zip code shapefiles for years 2000 to 2010?

I've been searching the web for zip code shapefiles (or equivalents) for years 2000 to 2010, and have only managed to find the following: http://www.icpsr.umich.edu/TIGER/index.html which carries ...
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1answer
89 views

Data attributes in Illinois legislative and senate TIGER shapefile [duplicate]

Possible Duplicate: Illinois Legislative Zip to District Match Data Set I have to download illinois legislative and Senate shapefile from the census bureau. Do I download State Legislative ...
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2answers
138 views

What GIS software did you purchase to work with Tiger data?

It looks like in Tiger line file the user must have mapping or Geographic Information System (GIS) software that can import TIGER/Line data. Has anyone worked with the TIGER/Line data. What GIS ...
2
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1answer
273 views

TileStache & UTF Grid provider is having unexpected results

I am having some weird output by the UTF grid provider in Tilestache on specific shapefiles; Specifically shapefiles reprojected from Census TIGER files. I know my server is configured correctly ...
3
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1answer
393 views

Where are TIGER's “Consolidated Cities”?

The TIGER reference docs make numerous references to Consolidated Cities. It's also one of the checkboxes on TIGERWeb. But there are only 5 files in the Consolidate cities directory and available for ...
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3answers
571 views

Is Tiger/Line 2010 Data Inaccurate? What's more reliable?

I followed the instructions at: http://www.letseehere.com/postgis-geocoder-using-tiger-2010-data To get postgres working with postgis, but some of the addresses are off 500 ft to as much as 1 mile in ...
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3answers
1k views

What is the highest resolution of population density data that I can obtain for USA freely?

Ok so as far as my understanding goes the most high resolution dataset available that factors in many other things (other than Census data ) at a 1X1 km resolution is Landscan data created by Oak ...
6
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1answer
183 views

How is the “place” determined for this Tiger 2010 shapefile address record?

In most cases, an ADDR.DBF record links to an EDGES.DBF record that links to a FACES.DBF record that links to a PLACE.DBF record that contains the place. Sometimes, the place key in FACES.DBF is ...
7
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1answer
18k views

How to change the unit of measure from degrees to meters in QGIS?

I am running QGIS 1.7.0 on windows, and I donwloaded a shapefile of census block group boundaries from TIGER. This file appears to be in the WGS 84 coordinate system, and when I open it in QGIS the ...
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2answers
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US Tiger or Open Street Map Route Data: One Way Street & Intersection Data

We're building a U.S. street routing application (finding paths for cars between two or more locations using public roads) and would like to use open source data US Tiger Data or Open Street Map or ...
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7answers
15k views

Where can I find a shapefile of city boundaries in the US?

Where can I find a shapefile that contains boundaries for the major cities in the United States? I have tried the census website but could not find anything.
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2answers
565 views

Comparing TIGERLine 2006 (and prior) With New Shapefile Format

I have created a geo database using MySQL and the TIGERLine data files available from the US Census. This is actually an MSSQL database I created that I've transfered to MySQL. Everything works ...
5
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3answers
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2010 Census Tiger County shp file with defined coastal land area

I am looking for a 2010 Census Tiger Shape file that hugs the coastline and doesn't include the ocean in county boundaries. I have a pre 2010 file that did this and I can't seem to find a 2010 ...
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1answer
7k views

Geocode quality: Nominatim vs. PostGIS Geocoder vs. Geocoder::US 2.0

I occasionally need to geocode >> 500,000 US street addresses (no features or intersections). I'd like to set up a geocoding service locally to handle these bulk geocodes. I've used the Tiger-based ...
4
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4answers
407 views

The shapes of the USA map

I'm newbie in GIS. I want use the shapefiles of USA map for my Geoserver. Where can I download shapes for USA? I know about the TIGER\Line shapes but it is separate shapes of counties and thematic ...
5
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4answers
2k views

What is a best practice way to display/feed US census/tiger data into Google Maps API?

Let's say I want to display age, income, etc based on census block groups on Google maps. What is the best practice or recommended way to do so and also to allow to do simple queries?
3
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1answer
1k views

Loading Tiger 2010 Edge Shape File w/ ogr2ogr Produces Reversed Latitude and Longitude

I'm attempting to build a MySQL database that will allow me to reverse geo-code addresses using the MBR functions within MySQL. I've downloaded the latest set (2010) of TIGER edge shape files from ...
6
votes
1answer
527 views

Programming a Tessellation in MATLAB and Using Map Data As Input

First of all, I hope this question isn't too basic, obvious or inappropriate for this forum. I'm very new to using map data. I'm working on a project on locating service terminals in a geographic ...
3
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2answers
600 views

TIGER/Line processing

Does anyone know of scripts for merging TIGER/Line shp files? It is for extracting the road features only, but for the whole of USA. They are provided as shp files for one county at a time here: ...