Questions tagged [geocoding]

Use when converting street addresses into spatial data that can be displayed as features on a map, by a reference dataset or locator.

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46
votes
12answers
4k views

Geocoding USA addresses that cannot be sent over internet?

For a one-time project, I need to geocode a few thousand addresses. In the past I've used various online resources for this kind of thing (e.g., Google Maps API), but the addresses I'm working with ...
34
votes
12answers
43k views

Bulk geocode 20 million US addresses

Are there any free or reasonably priced databases for the US which can be searched and return latitude and longitude information?
7
votes
1answer
7k views

How to create a point along a line given distance

I have been given a non-spatial database which contains the names of lines which I have a shapefile for. The database also has names of points and the distance of each point from the origin along the ...
24
votes
8answers
35k views

Seeking open source Geocoding tool which can be used commercially?

Is there any Geocoding tool which is open source and can be used in commercial application? We tried Google geocoding API's but cannot continue with it because of some licensing limitation. Now ...
22
votes
7answers
11k views

Choosing GeoCoding service?

I'm looking for a web service providing a full address based on coordinates (and reverse). I'm ready to pay for that service. I don't want to use Google's API.
2
votes
1answer
615 views

PostGIS: How can I improve the response time for getting the routed distance between addresses?

I need the ability to calculate the driving distance between two addresses for possibly hundreds of thousands of records. I have decided on PostGIS because it can geocode and perform routing all in ...
45
votes
11answers
97k views

Obtaining up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes? [closed]

NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
15
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1answer
5k views

Batch geocoding in R

I need to find a package in R or source code in R that performs batch geocoding using Bing, Yahoo, OpenStreetmap. Do you have any suggestions?
15
votes
6answers
5k views

Advice on geocoding IP addresses

What is the best way of geocoding IP addresses? I have ~ 10,000 - 30,000 addresses to geocode once. The IP addresses are from all over the world and I only want the Long/Lat. Accuracy to the city ...
1
vote
3answers
1k views

Installing TIGER geocoder?

I am trying to install the tiger geocoder for postGIS. I am using the 2.1 version of postGIS on Windows 7. I am using this set of instruction to do so. I am confused by what they mean be edit the ...
10
votes
4answers
19k views

API to reverse geocode latitude, longitude to census tract?

I have a bunch of latitude,longitude coordinates (mostly city/town centroids) in the United States for which I'd like to find the containing census tract. For instance, input => nn.nnn, -nn.nnn ...
3
votes
1answer
647 views

Georeferencing 1990 U.S. county names / FIPS for CartoDB?

I have a data table with columns of county and state names as well as FIPS codes for 1990 U.S. counties. I cannot easily merge shape data into the data (e.g. the Census ones), but CartoDB does not ...
24
votes
6answers
13k views

Geocoding API Comparison

Is there a good updated source for comparing existing Geocoding APIs (i.e. Google, Mapquest) and their features? I'm really interested in their language support as well. For example, Google has ...
13
votes
6answers
10k views

What's the easiest way to do a one-time mass geocode? (580,000 US addresses)

I am working on a civics related project and I need to be able to display all the properties in the City of Philadelphia on a map, so I'll need to get the latitude & longitude for all 580,000 ...
23
votes
17answers
99k views

Seeking full list of ISO ALPHA-2 and ISO ALPHA-3 country codes?

I'm searching for a full list of countries with their country codes. Like on this page (need full and valid): http://www.nationsonline.org/oneworld/country_code_list.htm
15
votes
4answers
32k views

What is the difference between geocoding and georeferencing?

After some googling around both seem to be interchangable words, where we speak of tying the spatial info of a real place and storing in database. But still I am not satisfied, there should be some ...
13
votes
4answers
17k views

Geocode address once in google maps, save in database, read geocoded result from there on

Is it possible to geocode an address, save the result in a database, then read that result from there on? I'm using a Google map that is geocoding hundreds of addresses which obviously hit the ...
11
votes
1answer
3k views

How are geocoding scores calculated in ArcGIS?

After a table of addresses is geocoded, ArGIS provides information about each geocoded address, among those the "match score" of the candidate to which the address was matched, which ranges from 0 to ...
5
votes
3answers
5k views

Geocode from mile marker/milepost to latitude/longitude?

I have a dataset that describes a few million incidents along Texas roadways. The vast majority of incidents only list a highway name and a milepost. For example, milepost 120 on I-20 or milepost 263 ...
6
votes
4answers
12k views

How to use Google Maps V3 Geocode with Openlayers

How to use Google Maps V3 Geocode with Openlayers. Below is my code but the function does not execute when I try to integrate it with Openlayers. This works with my original google v3 file. Below is 2 ...
3
votes
5answers
11k views

Geocoding with OpenLayers? [closed]

How can I achieve Geocoding with the JavaScript OpenLayers API, in the same fashion as the Google Maps API?
2
votes
2answers
492 views

Geometry Errors with Imported Shapefile, Unable to Fix

Software Used QGIS 2.18.10 MS Excel 2016 GitHub Repository With Files (link) Update 3 Blank file when reprojecting 1. Open the layer 2. Double-click Reproject Layer 3. Select Reprojection ...
1
vote
2answers
257 views

What are good out of the box alternative geocoding solutions to Esri's services? [duplicate]

Esri's legacy geocoding services will retire at the end of the year, what are good GIS services that can replace the North American and US Streets geocoders? I have totally excluded Esri's ...
0
votes
1answer
206 views

Geocoding block using ArcGIS Desktop?

The address table that I am trying to geocode does not have specific addresses; rather, it has blocks (e.g. 200 Block FIRESTONE LN). Is it possible for me to still geocode the table? I can't just ...
0
votes
2answers
429 views

Manually add lat and lon to ArcGIS Interactive Rematch

I have a spreadsheet full of addresses to geocode in ArcMap 10. I've added the spreadsheet to the map, then started to geocode them via the context menu's "Geocode addresses" item. Many were matched ...
14
votes
2answers
10k 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 ...
17
votes
3answers
3k views

How fast should I expect PostGIS to geocode well-formatted addresses?

How fast should I expect PostGIS to geocode well-formatted addresses? I've installed PostgreSQL 9.3.7 and PostGIS 2.1.7, loaded the nation data and all states data but have found geocoding to be much ...
22
votes
1answer
5k views

Comparison of geocoding solutions (such as Gisgraphy & PostGIS 2.0) [closed]

As I am sure many of you are aware, PostGIS has finally released Version 2.0 and included within this version they have also built a geocoder (see: http://postgis.net/docs/Extras.html). Although I ...
14
votes
4answers
2k views

Creating geocoding/gazetteer web service?

I would like to write a geocoding web service for genealogy in Java. Because it is for genealogy, I don't need to go down to the street level. I only need to go down to the county. Looking at ...
10
votes
8answers
41k views

How to Geocode a Google SpreadSheet?

I have a spreadsheet in Google Docs with about 20-30 rows, with the following 6 columns : ID, Name, Address, Cell_No, Latitude, Longitude where the last two columns are empty. What is an easy way, ...
10
votes
2answers
3k views

Is it possible to geocode street intersections using Nominatim?

Is it possible to geocode the location of a street intersection using Nominatim? Example geocode query Commonwealth Ave at Washington Street, Boston, MA Successful Geocode by Google https://maps....
8
votes
5answers
3k views

How to Geocode a City

I know that I can just call one of any number of geocoding APIs to perform this for me. This is more of a curiosity than anything else. With that aside, how does someone (like Google) turn a city ...
10
votes
2answers
18k views

How to return individual address components (city, state, etc.) from GeoPy geocoder?

I'm using GeoPy to geocode addresses to lat,lng. I would also like to extract the itemized address components (street, city, state, zip) for each address. GeoPy returns a string with the address -- ...
3
votes
2answers
2k views

How to improve poor performance times for PostGIS 2.1 Tiger Geocoder?

I've recently upgraded my PostGIS DB from 2.0 to 2.1. I initially followed the instructions from Waiting for PostGIS 2.1 - Install PostGIS Tiger Geocoder as an Extension and 2.7. Installing, ...
10
votes
3answers
5k views

Average frequency of zip code change for a given address over the course of year

This is a difficult question to answer with a high degree of accuracy, but could someone estimate to within an order of magnitude for me the chances of a zip code for a given address changing over the ...
6
votes
1answer
3k views

Is there a method to create offline geocoder using OSM xml data?

I am trying to develop an offline android map that makes use of OSM map tiles of 15 zoom level, For this purpose i used an open source library : Osmdroid Now, i m looking into the possibility of ...
5
votes
1answer
917 views

Is there an open source tool for both road network analysis and geocoding?

Is there any one open source software package that can perform both road network analysis and geocoding?
11
votes
1answer
1k views

How does IP geocoding work?

I'm trying to understand how using each part of an IP address influences the accuracy of geocoding. For example, if 15.201.xxx.xxx is used instead of 15.201.123.xxx what is the approximate ...
5
votes
2answers
2k views

Is there a public API that can be accessed with Python and will geocode Points of Interests?

I recently downloaded tagged hospital data from OpenStreetMaps.org using the API. Some of the data have a 'node' tag which are attributed with a lat/long while other data are tagged as 'way' format ...
5
votes
1answer
3k views

How to scrape addresses from a web page for geocoding purposes?

I am trying to get addresses from a web page for mapping purposes. I know I could copy and paste the addresses into an Excel file and geocode them but I was wondering if there was any faster way to ...
5
votes
1answer
9k views

Finding out if coordinate is within shapefile (.shp) using pyshp?

I'm trying to map coordinate data to a municipality. Reverse geocoders aren't as accurate as I need them to be (I was using geocoder pkg before), so I found a .shp that maps and names all the ...
3
votes
2answers
3k views

How to use Google Maps geocoding with Openlayers?

I'm making a Openlayers map with some shapefile and I have Google Maps base layer. I want to create a text area and a button. When I input a address and click the button, the map should show me the ...
10
votes
2answers
8k views

How to reverse geocode with ArcMap?

What steps to I have to take in ArcMap (ArcEditor) to input a lat / long and return nearest address? I found the Reverse Geocode tool but I can't figure out what to put in the "Input Features" and "...
8
votes
6answers
8k views

Does anyone use TRS (Township, Range, Section) data?

I recently had a request for TRS/PLSS data and I didn't know anything about it. I have researched it and it looks like it is purely mathematical (for the most part) based on geo-coordinates but I'm ...
8
votes
2answers
3k views

Getting US Highway exit geocodes using Google Maps API? [closed]

For our application, we need to get all the US interstate highway exits along with their Geocodes. Can you please explain how to get these using Google Maps API or Google Local search or otherwise? So ...
8
votes
4answers
7k views

Disambiguate messy place names in python (preferably on local machine)

I have list with several million place names that come from Flickr profiles. Users provided these placenames as free text, so they look like this: Roma, Italy Kennesaw, USA Saginaw, MI Rucker, ...
7
votes
4answers
2k views

US One Address locator style missing city, state and zip code fields?

I am using the file: C:\Program Files\ArcGIS\Desktop10.0\Locators\US One Address.lot To do address resolution on a parcel / polygon layer. I'm trying to understand why the file doesn't contain ...
5
votes
2answers
802 views

Do shapefiles sometimes contain the necessary data for address resolution?

Right now I am doing address resolution with a ESRI file called Street_Addresses_US.loc which works. I have been given a shape file that contains streets that was compiled by the state. Is it ...
5
votes
7answers
2k views

Assigning centerline address ranges

I've been given the task of assigning address ranges to a centerline feature class. I have all the data and I am just going street by street. My question: When assigning ranges, should I just enter ...
3
votes
1answer
343 views

Which Address Locator types use which .cls files?

I am attempting to edit the standards file used with ArcGIS 10's geocoding engine. Unfortunately, there are 17 files! As far as this website instructs, there should be an .lot file that tells me which ...