State of the States 2020 - Mapping USA Talk

Posted by Jennings Anderson on 21 May 2021 in English (English). Last updated on 24 May 2021.

Here are the slides from my Mapping USA Talk:


Cartogram of total edits per state in 2020. Color represents total edits per sq. km. – in equal sized bins (QGIS calculated quantiles) from purple to green to yellow (Less insightful, but more aesthetic)

Edits per day in 2019 and 2020

2020 saw 27k mappers edit OSM in the US. These mappers submitted 3.6M changesets, containing over 210M individual edits to OSM.

2020 Edits per county (per sq. km) Total edits per county, normalized by area. Note that this generally results in a population map. Top 20 counties on the right.

2020 Edits per county (per 1000 people) Total edits per county, normalized by population (using 2019 est. population per county). Top 20 counties on the right.

Daily Mappers in the US 2019-2020 Summary Stats

Daily Mappers: Amazon & Non

Paid Mappers per 1000 people each month Paid editors in the US in 2020 included Amazon (478 mappers) and other companies (270). Normalized by population

Paid Edits vs. Non

First Year editors Editors making their first US edit in 2020.

States per mapper 22,510 mappers edited in only 1 state, here’s how it breaks down for the 2 - 52.

Top 2020 Mappers Top 2020 mappers per state, excluding obvious import and revert accounts.

100th Changeset Club

All of these figures were computed from the OSM Changeset data available as an Amazon Public Dataset on AWS. This work was sponsored by Facebook.

Location: Last Chance Gulch, Helena, Lewis and Clark County, Montana, 59624, United States

Comment from Jennings Anderson on 24 May 2021 at 02:55

Congratulations on all the mapping, Adamant1! I fixed your username, apologies!

Comment from Wynndale on 25 May 2021 at 16:33

What happened in Massachusetts and Maryland?

Comment from Jennings Anderson on 26 May 2021 at 21:59

By these numbers, Massachusetts and Maryland had relatively less mapping (for their size) than the surrounding states, so they appear very squished. Not necessarily a fair visualization because Suffolk county (small) is the 10th most edited county in the US in 2020 in edits/sq. km.

I’m playing with a county-level version of this that highlights a few different trends, such as all of that mapping in Boston.

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