A procedure of systematically acquiring and recording information about all the members of a given population.

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221 views

How to clip Census tract shapefiles to the boundaries of City Council shapefiles

Before I ask my question, I want to say upfront that I am woefully inexperienced with coding as well as GIS, which is part of the reason why I'm here. I am currently working on a project where I am ...
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1answer
1k views

Importing Census TIGER Shape Files to SQL Server 2012?

I've been doing my research on how to import shape files into Microsoft SQL Server 2012. and am still unable to figure out how to do it after hours of playing around with it. I'll document what I've ...
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239 views

Faster way than Spatial Join to join field from attribute table to address table?

I have a table of addresses for every state in the nation. I just recently finished doing spatial joins and adding in census block/tract data per state. I have a national shapefile of ...
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39 views

Converting census data to block groups with regard to their area

I have population data for census blocks and want to convert them to block groups. I know that block groups has an extra digits, but how it will be possible to break down census data between blocks ...
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126 views

Download US census data profiles?

US census summary file information is available on the census ftp server: ftp2.census.gov/acs2013_5yr but I can't seem to find the data profiles information anywhere. The only source appears to be ...
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27 views

Historic (and current) borders of Miami, FL

I am working from Australia and am new to US mapping and Census data. I am looking for historic boundaries of Miami (FL) from maybe 100-200 years ago. Also current boundaries would be great - what ...
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124 views

Loading Tiger & ACS Data Into CartoDB

Does anyone have experience loading the pre-joined TIGER shape files and ACS 5 year data files by block group into CartoDB? I have downloaded the data from http://www.census.gov/geo/maps-data/data/...
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149 views

Septic Tank Location Data for the Southeastern United States

I am compiling a database of septic tank locations to make some rough estimates of the magnitude of return flow to the groundwater system for the Floridan aquifer system. Ideally I would have a lat/...
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26 views

German Census Demographic Data @ zip-code level

The US Census has an API to pull Census/ACS data at the ZTCA (zip-code tabulation area) level. I'm looking for the same functionality with German data. So far I've identified several websites such as ...
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57 views

Building customized data set from American Community Survey data?

I am trying to create a database in SQL Server with a customized dataset containing census information from the American Community Survey content available online. I want to show a granularity in my ...
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108 views

QGIS's “Points in Polygon” counts zero in every census tract

I am mapping the location of incidents of asthma using QGIS. I would like to count how many points are in census tracts to better understand the areas where asthma occurs most frequently. My map ...
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27 views

Finding equivalent API-supported data to the 2000 Census

I'm having some difficulty choosing Census datasets for a project that involve various SES measures at the block-group level. I'll be looking at things like median household income and percentage of ...
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14 views

Methods on aggregating census tracts for better CV's

I am working on a project that maps out poverty rates (ACS data) by census tract. Many of the tracts have CV's that are just too high for our study and I am hoping for find a sound methodology in ...
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14 views

Using ZCTA (Census ZipCode) polygones

I have downloaded some files from census website and did some cleaning to get ZCTA map for new york, but I noticed that there are overlapped regions (some regions are inside others). For some ...
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65 views

Combining Raster and Vector data

I've created a Watershed raster data set (using the Watershed Tool) for a certain area. Within that watershed raster, there are 8 basins that appear I'm trying add the total population to each of ...
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31 views

Statistical bias arising out of only comparing US census block groups that have not changed (been split) over time?

Census Block Group ("CBG") study areas are notorious for changing over time. Even from 2009 to 2013, about 10-25% of the CBG's in South Carolina have not remained consistent over that time. Seeing ...
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317 views

Does anyone have a Morocco shapefile that includes Western Sahara at the Provincial level?

The 2004 Moroccan census data is available at hcp.ma. I was wondering if anyone had a Moroccan shapefile at the provincial level or commune level that matched the data available on the census and ...
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40 views

Looking for a source of data for these specific United States Demographics for People and Businesses

Sorry for if I come across ignorant. I usually hangout over at StackOverflow. I'm a developer and a client has specific demographics needs that I'm not sure where to get. I looked at some Census data ...
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55 views

QGIS join by location not returning for features

I have eight contours/features in one shapefile (contour.shp) that i want to find the number of population within each contour, this is in another shp. I am using join attributes by location to do ...
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129 views

Finding census block with highest pop. value within the census tract

In QGIS, I'm trying to plot a centroid of only the census block with the highest population within each census tract. So there should only be one point per tract- that of the block with the greatest ...
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273 views

Importing 2014 TIGER County Shape Files to 2012 SQL Server?

Last year, I figured out how to import TIGER Census Block shape files into 2012 SQL Server with no issues. I assumed I would use similar code to do the county shape files but I keep getting a few ...
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2k views

India population by town: 1981, 1991, 2001, 2011

Trying to source population data for every village, town and city in India. I have been able to extract data for 2001 & 2011 from the census site, but am having a tough time finding a reliable ...
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77 views

Making Tiles - Varying the Zoom Level by Population Density

I want to create map tiles for all of the United States at high zoom level (12 or 13). I am using TileMill and mapping census tracts (income). However, I only need the high zoom level for populated ...
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1k views

How to calculate weighted mean coordinates within polygons?

I'm using QGIS 1.8 on OSX 10.8.3. I have a polygon shapefile of all of the US state legislative districts. I also have a layer of points that are centroids of US Census Tracts, with a field for the ...
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156 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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46 views

Level of data available on FactFinder

I am trying to find data at the block level or even block group level for the SF1 files and ACS 2010 or 2009. Just recently, two months ago, I was able to get this data but for some reason I am now ...
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247 views

Street block and Census Block

Study Area: Manhattan Software: ArcGIS 10.0 I'm measuring the street density using Street Network Grain size measure = Number of Street blocks per square mile. I have the NY street network but I do ...
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18 views

Get residential coordinates by zip and crid_id

I have information about residentials from USPS (zip code, crid_id, etc.). I need to get coordinates of polygon that will wrap every residential (crid_id) in special are (zip code) Data example: http:...
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10 views

Matching census blocks with block groups according to place identification?

I'm doing a project comparing incorporated and unincorporated block groups using several variables. So far, I've got the census block assignment files and merged them in Stata with the name lookup ...
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33 views

Geocoding using the census locator

I am trying to geocode roughly 20,000 addresses using the census locator in ArcMap. I was told that I should be able to access their locator through their server connection in ArcMap. When I connect ...
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17 views

Area Normalizing Percentages after Intersect

I am summarizing Census data within custom drawn polygons. I am summarizing age data (percent male 24-29, etc.). As with whole numbers, I assumed I would need to area normalize the data AFTER the ...
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39 views

How to query Tiger Data for Layers?

I am new to this. I have data downloaded from ftp://ftp2.census.gov/geo/tiger/TIGER2015/ and I would like to learn more about how I can query that data for the different layers it offers. Here is ...
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28 views

Apportioning census data using GeoJSON?

I am working on a project now that requires me to merge/dissolve census tracts into predefined neighborhoods. I know this is possible using ESRI's apportionment functions, but I am currently working ...
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36 views

I'm looking for a shapefile of 1990 Census data for California at the Tract or Block level

Does anyone know if the 1990 Census data is available as pre-joined shapefile? I'm looking for 1990 Tract or Block-level data on Riverside and Kern Counties.
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29 views

1990 TAZ and 2000 Census Tracts data analysis issue

There is no 1990 CTPP data available at the Census Tract level for my study area. I have 1990 CTPP data by TAZ and 2000 data by TAZ and Census Tract. The TAZ are the smaller areas. I would like to ...
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363 views

How to map out commuting patterns by county?

I am looking to create a map that shows the commuting patterns in between counties. I am using data from Table 1 at this link. Obviously it will be formatted in a different way. Any ideas? Also, ...
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570 views

Census Demographic Data from DMA ID

How can I go about finding demographic data by DMA ID? Is there a data file I can download from somewhere that I can use to import into my web application?
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78 views

Congressional Redistricting

I have a project coming up where I need to create new congressional district looking at only total population data. I am planning on using the census tract level of data, but I am having some ...