Skip to content


Repository files navigation

Little Geocoder

Download the latest release

Batch geocode CSV files in a nice visual interface

Geocoding is a pain in the neck. If you're just looking at US addresses, though, Little Geocoder is here to help! Latitude and longitude, just for you.

Little Geocoder takes in CSV files and geocodes them with the Census Bureau's Batch Geocoding service - all without knowing Python or using the command line!

It's more or less a very thin later on top of the LA Times' Census Batch Geocoder, with the addition of a few simple tools to help you break out street addresses and city names.

As a fun bonus, you don't need to upload your data into ✨🌪✨ The Cloud ✨🌪✨ (well, the addresses go to the Census Bureau, sure, but not the rest of it).

Using Little Geocoder


You can download the latest release from GitHub - just pick the one that's appropriate for your system.

Simple How-To

  1. Click Browse... to select your file
  2. Pick your columns that contain address, city, state and zipcode (state and zipcode are optional)
  3. Click the Geocode button and pick a destination for your new geocoded CSV
  4. Wait and wait and wait
  5. A brand-new CSV file shows up, full of latitudes and longitudes!
  6. 🎉🎉🎉

How long does it take?

It's a mystery to me, but it took a little under ten minutes for the 3000-row schools.csv file, and a little over 1 minute for the 30-row schools_sample.csv.

What platforms does it work on?

OS X and Windows, at the very least. It might work on Linux if you build it yourself.

Cleaning your data with "Adjustments"

The Census Bureau requires you do split address, city, state, and zipcode into separate fields. But what if your addresses aren't all in one column and look like this?

name addr
Your House 540 NW Avenue, Townsville, NC
My House 101 Rock St, Apt 3, Guitar City, NV

Oh no! Do we need to split it apart? Do we need to fight against that Apt 3C? No! No! We're too lazy for that!

Little Geocoder has built-in data cleaning tools called Adjustments to make splitting long addresses up easy. You just pick an adjustment from a dropdown and it'll clip out the part you're interested in.

540 NW Ave, Townsville, NC 101 Rock St, Apt 3, Guitar City, NV Use as
Comma split: first section 540 NW Ave 101 Rock St address
Comma split: second Townsville Apt 3 -
Comma split: third NC Guitar City -
Comma split: second-to-last Townsville Guitar City city
Comma split: last NC NV state

See, it's easy to pick out the parts you're interested in! You can also split on newlines/linebreaks if you want.

Have another kind of adjustment you'd like to see? Create an issue and I'll take a peek.


Help! I can't open it on OS X because my computer is scared of it!

Try to right-click (control+click) and select Open.

You can also go into System Preferences > Security & Privacy and change Allow apps downloaded from: to be App Store and identified developers. You might need to click the lock on the bottom-left corner of the window before it'll let you change anything.

Help! I'm building this app on my own and it's HUGE!

Anaconda on Windows installs versions of numpy & friends that include something called MKL. MKL is big. Anaconda doesn't play nice with venv so the only way I could figure out to get around it was to just uninstall Anaconda and install everything from instead.


Icon made by Smashicons from and is licensed by CC 3.0 BY


A tool to allow US addresses to be geocoded/georeferenced easily, without using Python or the command line or paid services or anything.






No packages published