ZIP codes are a system of geographically organized postal codes used by the United States Postal Service (USPS) since 1963. The basic format consists of five decimal numerical digits which locate over 40,000 postal delivery areas (which can include non-geographic areas such as ships at sea). An ...

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6
votes
1answer
238 views

Automatically aggregate German ZIP codes by the first two digits in a shapefile

I have a shapefile which contains all German Zip-Codes in a a five-digit format (e.g. 80637). For what I intend to do, this is way to much detail. I would like to aggregate all Zip-Code areas by the ...
3
votes
2answers
124 views

How can I create a choropleth from the 2010 census ZCTA shapefile using R and ggplot2?

I have created state and county choropleths in R using ggplot2. The method I have used for this came from Winston Chang's "R Graphics Cookbook". For those choropleths the map was already represented ...
1
vote
2answers
877 views

How to open an ArcGIS Desktop .lpk file using QGIS on a Mac?

I downloaded an LPK file from the ESRI site that contains USPS defined zip codes. Because I'm working with QGIS on a Mac, I converted the file to a .zip. There's a .lyr file that opened up in the zip, ...
0
votes
1answer
34 views

What is the best way to apply the correct ZIP Code when Geocoding

I need to batch geocode a set of addresses, some of them are missing the zip code causing the lat/lng to be placed incorrectly, is there a good way easily correct this? I am using a few geocoders, ...
5
votes
2answers
2k views

Where can I find a list of non deliverable zip codes

Here is an interesting problem I am facing... There are certain areas within the US where the USPS does not offer postal delivery to those addresses. One example here is my Zipcode 92067 which is ...
2
votes
2answers
2k views

US unemployment data by zip (or aggregating data up to county level)

I am trying to find unemployment rate data for the US that is: at 5 digit zip code level monthly, or quarterly, or even annually, for 2008-2012 free That seems to be impossible as far as I can ...
2
votes
0answers
116 views

From where can i download WKT files for US zip codes?

From where can i download WKT files for US zip codes ?? i need to plot zip code boundary on a map using open layers
2
votes
2answers
144 views

Shapefiles for US city and Zip level

I already have the information for US states and Counties. I have the information in the Json files. I want the information for ALL US city and Zip Code information. Any leads appreciated. I cant ...
0
votes
0answers
28 views

Where to download US zipcode polygons? [duplicate]

I need US zipcode areas (polygons) for a web map implementation. Can you tell me where to find it (free or paid)? Thanks!
5
votes
6answers
451 views

How to put zipcodes data onto a web map?

This is to create a cellphone coverage map. I'm being given a list of zipcodes and need to create a detailed static cellphone map (plus, ideally, an interactive zoomable map) of cellphone coverage ...
1
vote
2answers
97 views

Samples of US Residential or business addresses without zip+4?

I'm looking for a few deliverable residential or business addresses without a zip+4. By "residential or business", I mean, not a PO box and not military addresses. According to this answer on ...
1
vote
1answer
29 views

How to select route lines that fall outside ZIP boundaries

I have two tables. One of route lines, with associated Zip Codes, and another of Zip Code boundaries. Some of the lines cross over their Zip boundaries. Below is zoomed in picture demonstrating my ...
2
votes
1answer
135 views

Executing GP Task for JavaScript API

I recently started using JavaScript API in attempt to construct a web app. After taking a recent ESRI online course, I thought I had some base knowledge on how to do this. This geoprocessing service ...
1
vote
1answer
83 views

Developing visualization on zip code level data

I'm trying to use the zip code data from the census (any year that works). I have 5-digit zip code data that I need to match up to a map/shape file. The problem is that the zip code tabulation files ...
0
votes
0answers
243 views

Scrape data from Google Maps

I am a novice in using Geodata and Web scraping. I want to scrape data for all Liquor Stores in California for a class project. Is there anyway to get the data in an Excel sheet? I just need the ...
2
votes
1answer
82 views

Calculating point proximity in ArcMap 10.1

I have a geocoded point file which (theoretically) contains one point for every zip code in the U.S. I want to create a smaller list of zip codes from this file. The list should include only those zip ...
2
votes
1answer
70 views

Zip + 4 Centroids

I have a data set with ZIP +4 codes, and ideally, I'd like to map them (their centroids) as points. I'm not interested in their boundaries (since they're not really geographies anyway). Does anyone ...
1
vote
0answers
100 views

'File is too big' error when uploading QGIS Plugin

I have written a simple QGIS plugin which zooms the map canvas to a user specified UK postcode. I would like to share the plugin but the csv file, which contains stripped down OS Code-Point open data ...
0
votes
3answers
555 views

Which US zipcodes map to more than one state or more than one city?

I'm using a zip code listing, and I am curious to know how many (or which) zip codes map to more than one US state or US city? For instance I know that 42223 resolves to the same city which straddles ...
1
vote
1answer
622 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 ...
2
votes
1answer
488 views

How do I map data by zip code?

I have a set of data that corresponds to zip code, and I'd like to turn that into a map. From what I've gathered thus far, zip code shapefiles are difficult to find and work with due to the fact that ...
2
votes
1answer
114 views

What are the geometric principles and GIS techniques that I can use to generate a postcode coverage of my city at street scales?

Postal codes of Brazil and another countries are oriented to distribution logistics, and improvement of reliability in writing the postal addresses; but without much concern for the spatial ...
6
votes
4answers
9k views

How to convert zip codes to latitude and longitude?

I have a data set that includes a list of zip codes. Is there a way in R to convert these zip codes to latitude and longitude coordinates?
2
votes
0answers
54 views

Need help in how to map ZIP codes data by year [closed]

I'd like to build a graphic showing where city employees live, based on their date of hire. I have a list showing the hire date and the ZIP code for each employee. There are about 4,000 employees. I ...
-3
votes
1answer
186 views

GIS Shapefiles map to Zipcodes to districts

I have found GIS shape files from the following link: http://elections.il.gov/votinginformation/2011congressionaldistricts.aspx What would be the easiest way if possible to process/tool that I need ...