Some nonpartisan organizations are truly such; others are nominally nonpartisan but in fact are generally identifiable with a political party. For example, the National Rifle Association is technically a nonpartisan organization, but at the national level at least functions almost as an adjunct of the United States Republican Party. Conversely, although technically a nonpartisan organization, at the national level the National Association for the Advancement of Colored People has for many years functioned as almost a subsidiary organization to the United States Democratic Party. The same can be said of most American right-to-life organizations with regard to the Republicans and of most U.S. labor unions with regard to the Democrats.
Today, nonpartisan elections are generally held for municipal and county offices, especially school board, and are also common in the election of judges. In some nonpartisan elections, it is common knowledge which candidates are members of and backed by which parties; in others, parties are almost wholly uninvolved and voters make choices with little or no regard to partisan considerations.
Churches are by law supposed to remain nonpartisan in order to retain the status of contributions to them being tax-deductible (contributions to overtly partisan groups, even tax-exempt ones, are not); this has recently been called into question with regard to both many predominantly African-American churches being involved in Democratic activism and with many predominantly white evangelical churches being openly aligned with activist groups largely associated with Republicans such as the Christian Coalition. On the other hand, the Brookings Institution, a Washington, D.C. think tank, has at various times in its history been headed by both identifiable Republicans as well as identifiable Democrats and hence would be judged by many to be nonpartisan in practice as well as in theory.