We’ve added several new boundary layers as well as made a few small updates to Geocodio Maps. 

All of these layers were already available through the Geocodio API and spreadsheet geocoding tool, and now you can visualize them as well.

New Boundary Layers

If you need to show legislators the impact of policies on people within their districts, map loan applications by Census tract, or see which municipalities your customers are in, click “Create Map” the next time you geocode a spreadsheet.

You’ll be able to visualize these new layers and more:

120th Congressional districts

This update to Geocodio’s Congressional districts includes states with 2025-2026 redistricting (California, Florida, Missouri, North Carolina, Ohio, Texas, and Utah).

Congressional districts back to the 113th Congress can be overlaid.

2025 Census geographies

With Geocodio, you can add Census tracts back to 2000 as overlays, and now, 2025 geographies are available as well. You can overlay Census tracts, places, county subdivisions, combined and metropolitan statistical areas, metropolitan divisions, Public Use Microdata Areas (PUMAs), and urban areas. 

UK electoral boundaries

UK electoral boundary layers available from Geocodio include Westminster constituencies, devolved parliament constituencies (Scottish Parliament, Senedd, and Northern Ireland Assembly), electoral wards, and county electoral divisions

Mexico municipalities

You can also overlay Mexican municipios.

Adding boundaries

You can find all of these in the boundary picker when you add a boundary layer to a map. Each layer displays which country it applies to, and you can use the country filter to narrow your options.

Try the new Maps layers: Self-Serve | Enterprise

We also fixed a few bugs

While we were updating the districts, we found a few issues that we’ve fixed. We apologize for any frustration these issues may have caused.

Hover and click work again

Hovering over a boundary highlights it, and clicking a boundary selects its matching rows in your spreadsheet.

State legislative districts no longer overlap

As anyone who works with district data can tell you, it’s been a busy year for redistricting. (We feel this ourselves, since Geocodio independently tracks redistricting and we update our district data whenever states make changes.)

Our maps were feeling the strain and for a few states, the old districts were shown simultaneously with the new districts. We’ve now fixed this, and now show only the map currently in effect for each state. 

Questions?

If you need help creating a Geocodio map or have a suggestion of a new boundary, let us know anytime at [email protected].