Mapping Software used by States
Find out what software states’ redistricting bodies are using to draw district maps
This table was last updated on . If you see any information that is out of date, please email us.
Some states have different bodies for congressional and legislative redistricting (as is the case in Pennsylvania, for example). Some states work closely with governmental offices during the redistricting process, as in the cases of South Carolina and Utah. In states where the legislature is responsible for drawing one or both sets of lines, there is sometimes a joint committee (as is the case in Mississippi), a House and Senate committee that operate somewhat independently (as is the cae in Massachusetts), and/or the parties work somewhat independently (as is the case in Illinois).
Note: all information regarding software selection comes from the nonpartisan census liaison, a staffer or outreach coordinator for the commission or legislature, or press releases from the legislature, Caliper (Maptitude), or ESRI.
| State | Software |
|---|---|
| Alabama | Maptitude |
| Alaska | AutoBound |
| Arizona | ESRI |
| Arkansas | AutoBound |
| California | Maptitude |
| Colorado | ESRI |
| Connecticut | AutoBound |
| Delaware | Maptitude |
| Florida | ESRI |
| Georgia | Maptitude |
| Hawai’i | ESRI |
| Idaho | Maptitude |
| Illinois | AutoBound(Republicans), Unconfirmed (Democrats) |
| Indiana | AutoBound |
| Iowa | Maptitude |
| Kansas | Maptitude |
| Kentucky | Maptitude |
| Louisiana | In-house software, Maptitude (as a backup) |
| Maine | Maptitude (Democrats), Unconfirmed (Republicans) |
| Maryland | Maptitude |
| Massachusetts | Maptitude (House and Senate) |
| Michigan | AutoBound |
| Minnesota | Maptitude |
| Mississippi | Maptitude |
| Missouri | Maptitude |
| Montana | Maptitude |
| Nebraska | Maptitude |
| Nevada | AutoBound |
| New Hampshire | In-house software |
| New Jersey | Unconfirmed |
| New Mexico | Maptitude |
| New York | Maptitude |
| North Carolina | Maptitude |
| North Dakota | Maptitude |
| Ohio | Maptitude DRA 2020 (Joint Committee), Maptitude* (Commission) |
| Oklahoma | Maptitude |
| Oregon | ESRI |
| Pennsylvania | Not yet selected (Commission), Unconfirmed (Legislature) |
| Rhode Island | AutoBound |
| South Carolina | Maptitude (House and Senate), ArcMap (Revenue and Fiscal Affairs) |
| South Dakota | AutoBound (House and Senate) |
| Tennessee | Maptitude (House), ESRI (Senate and Office of Property Assessments) |
| Texas | In-house software |
| Utah | AutoBound (Commission) |
| Vermont | Maptitude |
| Virginia | AutoBound |
| Washington | AutoBound (Commission) |
| West Virginia | Maptitude (House and Senate)† |
| Wisconsin | In-house software |
| Wyoming | Maptitude |
*Legal Counsel for the Speaker of the House indicated that there was no official software utilized by the commission as a whole; Maptitude was used by at least two members.
†In the House and the Senate one member each in Majority and Minority; the remainder select their own.
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