Nesting (voting districts)

[1] The major concerns of nesting are that it may impede the creation of majority-minority districts, and that it may cause cities or other communities of interest to be split into different voting districts and therefore dilute their votes.

[3] The Scottish Parliament and Senedd Cymru are elected using an Additional member system, combining single-member constituencies with a party-list component chosen to ensure overall proportional representation across the chamber.

To elect this proportional component, single-member constituencies are nested together within larger multi-member regions.

[18] Two other states with uneven lower-upper house ratios (Rhode Island and Utah) encourage nesting between legislative and congressional districts.

Six other states (Alabama, Florida, Idaho, Indiana, Nevada and Tennessee) have lower-to-upper house seat ratios ranging from 2/1 to 4/1, but do not feature nesting in their laws on redistricting.

Example of nested districts in the Wyoming Legislature . The city of Rock Springs is split into northern and southern state house districts, but they are both combined into a single state senate district.
Law requires nesting of state house districts in state senate districts
Law suggests nesting of state house districts in state senate districts
even ratios of state house to state senate districts but no legal provision for nesting
has uneven lower-upper house legislative ratio but legally encourages nesting between both as well as with congressional districts