Top 10 Best Redistricting Software of 2026

Maptitude for Redistricting is a leading GIS-based software from Caliper Corporation, purpose-built for electoral district creation, analysis, and optimization. It offers automated districting wizards, manual drawing tools, and advanced analytics for demographics, voting patterns, and legal compliance such as the Voting Rights Act and equal population requirements. Widely adopted by U.S. states, counties, and redistricting consultants, it seamlessly integrates Census Bureau data and supports large-scale plans with high performance.

ArcGIS for Redistricting, from Esri, is a comprehensive web-based GIS solution tailored for electoral map drawing, analysis, and compliance in redistricting processes. It enables users to create district plans interactively, perform population balancing, compactness measurements, contiguity checks, and Voting Rights Act analyses using integrated census and demographic data. The platform supports collaborative workflows and automated reporting, making it suitable for complex jurisdictional needs.

Dave's Redistricting is a free, web-based platform that allows users to draw, simulate, and analyze legislative district maps using official U.S. Census Bureau data at various geographic levels. It provides comprehensive metrics such as compactness scores, partisan bias, racial demographics, and competitiveness to evaluate plans for gerrymandering or fairness. Widely used by activists, journalists, and policymakers, it supports community sharing and collaboration during redistricting cycles.

Districtr is an open-source web application developed by RStudio for interactive redistricting simulations and analysis. It enables users to draw custom district plans, generate large ensembles of random alternative plans, and evaluate them using metrics like compactness, partisan fairness, and competitiveness. The tool supports multiple U.S. states with census data integration and emphasizes transparency for public engagement in the redistricting process.

DistrictBuilder is an open-source, web-based redistricting platform developed to facilitate public participation in drawing legislative districts. Users can create plans by drawing boundaries, viewing census demographics, and running basic analyses like population equality, compactness, and racial polarization. It emphasizes transparency and collaboration, allowing plans to be shared publicly or embedded on websites for community feedback.

QGIS is a free, open-source Geographic Information System (GIS) software that enables users to visualize, edit, and analyze geospatial data through layers, maps, and spatial tools. For redistricting, it supports importing precinct shapefiles, population data integration, boundary editing, and basic compactness measurements via plugins or expressions. While versatile for custom GIS workflows, it lacks specialized redistricting algorithms for plan optimization or ensemble analysis.

EDS Redistricting Software from Election Data Services is a professional GIS-based platform tailored for electoral redistricting, enabling users to draw, analyze, and optimize district maps with high precision. It integrates the latest Census data and supports compliance analysis for criteria like population equality, compactness, contiguity, and Voting Rights Act requirements. Widely used by states and jurisdictions, it offers robust reporting and simulation tools for fair and legally defensible plans.

Muni Redistrict, from Planning Analysts, is a Windows-based software tailored for municipal redistricting, helping local governments draw fair electoral districts for city councils, school boards, and similar bodies. It provides tools for population equalization, contiguity enforcement, compactness measurements, and deviation reporting to meet legal standards. The software integrates Census data and generates maps and reports, streamlining the decennial process for smaller jurisdictions.

GerryChain is an open-source Python library designed for redistricting analysis through Markov chain Monte Carlo (MCMC) simulations, particularly using the ReCom algorithm to generate ensembles of thousands of districting plans. It enables users to evaluate plans for gerrymandering via metrics like partisan bias, compactness, and population balance. Primarily targeted at researchers, it supports custom accept/reject functions and integration with shapefiles for U.S. elections data.

MapInfo Pro is a professional-grade GIS software from Pitney Bowes that excels in spatial data visualization, analysis, and mapping, adaptable for redistricting through tools for boundary creation, demographic aggregation, and compactness metrics. It supports integration with census data via ODBC connections and offers MapBasic scripting for custom redistricting workflows. While versatile for general geospatial tasks, it lacks built-in redistricting-specific features like automated plan generation or VRA compliance checks, requiring user expertise to implement.