civic-data-boundaries-us-mn-precincts

Civic Boundary Data for Civic Interconnect for Minnesota precincts.

Source

• https://www.sos.mn.gov/election-administration-campaigns/data-maps/geojson-files/

GeoJSON files

GeoJSON is a geospatial data format based on JSON (JavaScript Object Notation) designed for use in online applications. They include voting precinct boundaries as well as the name, county, and election districts (US Congress, MN Senate and House, County Commissioner) for each precinct.

These files are intended to provide basic information regarding the location of election districts within the state. For the most accurate information on precincts and districts, as well as polling place information, please use the Polling Place Finder.

Minnesota precincts - April 2025 (6225 KB json)

For state and county boundaries, see civic-data-boundaries-us.

Process

Official source:
https://www.sos.mn.gov/media/2791/mn-precincts.json

        ↓

Read top-level source date:
"May 1,2026"

        ↓

Normalize:
snapshot_date = "2026-05-01"

        ↓

Derive:
snapshot_version = "2026-05"

        ↓

Save downloaded input:
data-in/states/minnesota/precincts_2026-05.json

        ↓

Build output:
data-out/states/minnesota/precincts/2026-05/

        ↓

Add to every output feature:
snapshot_version = "2026-05"
snapshot_date = "2026-05-01"

Installation

pip install civic-data-boundaries-us-mn-precincts

Pipeline

This repository uses a reproducible data pipeline built on the same conventions as other Civic Interconnect datasets (data-config/, data-in/, data-out/).

# Place statewide GeoJSON input
# data-in/states/minnesota/precincts_2025-04.json

# 1) Build (copy/normalize/add snapshot metadata)
civic-us-mn build --version 2025-04

# 2) Validate (CRS, required columns, geometry, basic uniqueness)
civic-us-mn validate --version 2025-04

# 3) Index (flat index, manifest, state layer pointers)
civic-us-mn index

Or use uv:

uv run python -m civic_data_boundaries_us_mn_precincts.build_layer --version 2025-04
uv run python -m civic_data_boundaries_us_mn_precincts.validate --version 2025-04
uv run python -m civic_data_boundaries_us_mn_precincts.index

Development

Clone and Open in VS Code

git clone https://github.com/civic-interconnect/civic-data-boundaries-us-mn-precincts.git
cd civic-data-boundaries-us-mn-precincts
code .

Set Up the Project

uvx pup-clean --delete
uv self update
uv python pin 3.14
uv python install
uv lock --upgrade
uv sync
uv audit

References

State of Minnesota - Election Administration & Campaigns - Data & Maps - GeoJSON files