
I built a Massachusetts firearms licensing dashboard using public data
Hi, all.
Inspired by a comment in this post, specifically by u/NortheastMoose, who shared a link to the MA firearms licensing and transactions public dataset (CSV files), I built a Massachusetts firearms licensing dashboard. You can access it here.
I am not selling anything. I am a tinkerer who wanted to add some visualization to the data. I am not a developer and used Claude to whip this up.
What it shows:
- Application trends from 2006–2024
- New vs. renewal vs. replacement breakdowns
- Processing time by year (the 2013 Sandy Hook surge is visible)
- Choropleth map by zip code
- Filterable by municipality, year, and application type
- Raw data download
For the geeks:
- Python / Pandas (data wrangling)
- Plotly Express (charts)
- Streamlit (app framework + free hosting)
- GitHub (version control)