Number of library materials lent to the number of persons the library serves. It is the annual circulation divided by the library's legal service area population, and indicates the average number of loans made to each resident annually.

Water quality index at sampling site(s) within the jurisdiction. The Water Quality Index, or WQI, is a number ranging from 1 to 100; a higher number indicates better water quality. In general, stations scoring 80 and above met expectations for water quality and are of "lowest concern," scores 40 to 80 indicate "moderate concern," and water quality at stations with scores below 40 did not meet expectations and are of "highest concern."

The number of students graduating on time (after four years of high school), as a percentage of their cohort

Mean travel time to work

The number of residents with high school, associate and 4-year college degrees broken down by race, ethnicity, gender and income, expressed as a percentage of all residents 25 and older in a region

The Housing Affordability Index measures whether or not a typical family earns enough income to qualify for a mortgage loan on a typical home. A value of 100 means that a family with the median income has exactly enough income to qualify for a mortgage on a median-priced home. For example, a composite HAI of 120.0 means a family earning the median family income has 120% of the income necessary to qualify for a conventional loan covering 80 percent of a median-priced existing single-family home.

The Air Quality Index is an indicator of overall air quality that takes into account all of the criteria air pollutants measured within a geographic area.

Mean money income received in the past 12 months computed for every woman, man, and child in a geographic area

Percentage of total population within a designated area that is identified as both “low income” and having “low access” to healthy food. Note that there are many ways to measure food access for individuals and for neighborhoods, and many ways to define which areas are food deserts (neighborhoods that lack healthy food sources).

The number of children under 18 living below the federally defined poverty line, expressed as a percentage of all children under 18.