Proof of concept.This is an unofficial demo built by Datopian from the City of Evanston's public data. The official portal is data.cityofevanston.org. Questions or feedback: hello@datopian.com

A PortalJS proof of concept · data from the City of Evanston's ArcGIS Hub

Precincts

The City of Evanston is divided into nine wards. Each ward is then sub-divided into precincts. One alderman is elected to represent each ward.

Records
45
Formats
5
Last updated
Jul 3, 2025

Download & API

Precincts (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
Precincts (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
Precincts (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
Precincts (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
Ward-Precinct
W_P
string
Ward
WARD
string9 values: 4 (7), 6 (6), 2 (5)…
Precinct
PRECINCT
string7 values: 1 (9), 2 (9), 3 (9)…