Boundaries of Orleans Parish voting precincts were updated on September 25, 2015, to reflect population changes. The dataset contains polygon geometry for each precinct, as defined by the New Orleans City Charter and Louisiana state law. It is published and maintained by data.nola.gov, with a last update recorded in September 2025.
Use Cases
- Mapping precinct-level voter registration statistics using the `PRECINCTID` as a spatial join key.
- Analyzing the contiguity and compactness of electoral districts by calculating metrics from `Shape.len` and `Shape.area`.
- Creating base maps for election night reporting by visualizing the `the_geom` polygon data.
- Studying the impact of precinct boundary changes on local election outcomes by comparing `PRECINCTID` definitions over time.
Strengths
- Boundaries are legally defined by the New Orleans City Charter and Louisiana Election Code.
- Geometries (`the_geom`) are verified by the Louisiana Secretary of State's Office.
- Dataset was updated in September 2025, indicating recent maintenance.
Limitations
- Sample data and row count are unavailable, preventing assessment of dataset size.
- The temporal coverage is static, with boundaries defined for a single point in time (2015 update).
Provenance
- Source
- City of New Orleans, verified by the Louisiana Secretary of State's Office.
- Collection Method
- Defined by ordinance according to the New Orleans Home Rule Charter and state law.
- Time Range
- Boundaries reflect a 2015 update.
- Freshness
- Updated September 2025.
- Geography
- Orleans Parish, Louisiana, USA.