Synopsis of Threshold Criteria and Redistricting Standards

Utah Independent Redistricting Commission Logo

Congressional817,904±817 (.2% OVERALL RANGE)817,087 (-.1%)818,721 (+.1%)
State Senate112,814±5,640 (10% OVERALL RANGE)107,714 (-5%)118,454 (+5%)
State House43,622±2,181 (10% OVERALL RANGE)41,441 (-5%)45,803 (+5%)
School Board218,108±10,905 (10% OVERALL RANGE)207,203 (-5%)229,013 (+5%)


  • No part of a district can be entirely separated from the remainder of the district.

Reasonably Compact

  • To the extent practicable, the Commission will submit maps with districts that are reasonably compact. Districts shall avoid odd shapes or contortions that cannot be explained by other legitimate redistricting criteria.

Communities of Interest

  • The Commission shall, to the extent practicable, preserve communities of interest. A “community of interest” is defined as a group of people in a contiguous geographic area that share common policy interests, whether cultural, religious, social, economic, or others that do not necessarily coincide with the boundaries of a political subdivision. A community of interest cannot be based on a relationship with a political party, incumbent, or political candidate.

Geographic Boundaries

  • The Commission shall, to the extent practicable, follow natural, geographic, or man-made features, boundaries, or barriers when drawing district boundaries. A “geographic boundary” means natural barriers, such as mountain ranges, significant rivers or large lakes, and other bodies of water. A “man-made” feature refers to prominent aspects of the built or human-designed environment, including streets and freeways.

Cores of Prior Districts

  • The Commission shall, to the extent practicable, preserve cores of prior districts. In doing so, the Commission will consider district lines as previously drawn. If possible, the Commission will utilize empirical methods of measuring congruence in prior and proposed district boundaries.

Municipalities and Counties

  • The Commission will, to the extent practicable, submit maps which minimize the division of municipalities and counties across multiple districts. The term “municipality” is defined in Utah Code § 10-1-104(5). The Commission will, to the extent practicable, rely on quantitative measurements of division.

Boundary Agreement

  • The Commission will, to the extent practicable, seek boundary agreement among the map types submitted. Specifically, the Commission will consider the alignment among the boundaries of the districts for the Utah House of Representatives, the Utah State Senate, the Utah State School Board, and the United States Congress.

Purposeful or Undue Favoring

  • The Commission will, to the extent practicable, prohibit the purposeful or undue favoring or disfavoring of an incumbent elected official, a candidate or prospective candidate for elected office, or a political party. In so doing, the Commission will consider direct or indirect evidence of intent and, where practicable, quantitative measures. The Commission will not use residential addresses of incumbents, candidates, or prospective candidates in creating its proposed maps.