Another index that measures livability, but only in the States. Pity.
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AARP has launched a Livability Index, which is the most comprehensive attempt at measuring quality of life in neighborhoods throughout the US. You can put in any address or zip code in the US and get (like Walk Score), a number from 0 to 100. The index is quick and easy to use.
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The Livability Index is a signature initiative of the Public Policy Institute to measure the quality of life in American communities across multiple dimensions: housing, transportation, neighborhood characteristics, environment, health, opportunity, and civic and social engagement. …
… the best US neighborhoods have scores in the mid-to-upper 70s—so 63 is good. The worst performing places tend to have scores in the 40s. … the usefulness of the index is limited because of the varying scales of the underlying data–some of which is reported by neighborhood while other data is countywide or from some larger area.