Minor civil division in the context of Government

The barrios of Puerto Rico are the third-level administrative divisions defined with geographic boundaries serving as the primary legal subdivisions of the 78 municipalities in the archipelago and island of Puerto Rico, an unincorporated territory of the U.S. Amounting to 902 wards or boroughs equivalent to minor civil divisions in the U.S., like cities, townships, and parishes, barrios are under the governmental authority of the popularly elected strong mayor and unicameral legislature governing the municipality within which they are located. Barrios are subdivided into numerous subbarrios, districts, communities, and/or sectors.

Except for San Juan, Ponce, Florida, and Vieques, all municipalities have a barrio equivalent to a downtown area in the U.S. called pueblo, officially known as barrio-pueblo (literally "neighborhood-town"), which typically is the site of the historic Spanish colonial settlement, administrative center, and urban core of the municipality. Of the 902 barrios proper, 828 are barrios and 74 barrios-pueblos.

A New England city and town area (NECTA) was a geographic and statistical entity defined by the U.S. federal government for use in the six-state New England region of the United States. NECTAs are analogous to metropolitan statistical areas and micropolitan statistical areas and are defined using the same criteria, except that they are defined on the basis of New England towns instead of entire counties. NECTAs are classified as either metropolitan or micropolitan NECTAs. A micropolitan NECTA has an urban core with a population of at least 10,000 but less than 50,000, whereas a metropolitan NECTA has an urban core with a population of at least 50,000. Tabulations of census information by NECTA was discontinued effective July 2023.

In New England, towns (which are classified by the United States Census Bureau as minor civil divisions) are a much more important level of government than counties. Because towns are smaller than counties, a NECTA usually provides a much closer approximation to the real metropolitan area than a metropolitan statistical area does.

A civil township is a widely used unit of local government in the United States that is subordinate to a county, most often in the northern and midwestern parts of the country. The term town is used in New England, New York, as well as Wisconsin to refer to the equivalent of the civil township in these states; Minnesota uses "town" officially but often uses it and "township" interchangeably. Specific responsibilities and the degree of autonomy vary in each state. Civil townships are distinct from survey townships, but in states that have both, the boundaries often coincide, especially in Indiana, Ohio, and Illinois, and may completely geographically subdivide a county. The U.S. Census Bureau classifies civil townships as minor civil divisions. Currently, there are 20 states with civil townships, including Indiana, Ohio, Illinois, Michigan, Iowa, Minnesota, Wisconsin, Missouri, Kansas, Nebraska, South Dakota, North Dakota, Pennsylvania, and West Virginia (in certain areas).

Township functions are generally overseen by a governing board (the name varies from state to state) and a clerk, trustee, or mayor (in New Jersey and the metro townships of Utah). Township officers frequently include justice of the peace, road commissioner, assessor, and constable, in addition to surveyor. In the 20th century, many townships also added a township administrator or supervisor to the officers as an executive for the board. In some cases, townships run local libraries, senior citizen services, youth services, disabled citizen services, and cemetery services, besides emergency assistance. In some states, a township and a municipality that is coterminous with that township may wholly or partially consolidate their operations.

A Census County Division (CCD) is a subdivision of a county used by the United States Census Bureau for the purpose of presenting statistical data. A CCD is a relatively permanent statistical area delineated cooperatively by the Census Bureau and state and local government authorities. CCDs are defined in 21 states that do not have well-defined and stable minor civil divisions (MCDs), such as townships, with local governmental purposes, or where the MCDs are deemed to be "unsatisfactory for the collection, presentation, and analysis of census statistics".

CCDs are non-governmental units and have no legal or governmental functions. Their boundaries usually follow visible features, such as roads, railroads, streams, power transmission lines, or mountain ridges, and coincide with the boundaries of census tracts. CCDs do not span county lines. Each CCD is given a name based on the name of the largest population center in the area, a prominent geographic feature, the county name, or another well-known local name that identifies its location.

Massachusetts is a state located in the Northeastern United States. Municipalities in the state are classified as either towns or cities, distinguished by their form of government under state law. Towns have an open town meeting or representative town meeting form of government; cities, on the other hand, use a mayor-council or council-manager form. Based on the form of government, as of 2023, there are 292 towns and 59 cities in Massachusetts. Over time, many towns have voted to become cities; 14 municipalities still refer to themselves as "towns" even though they have a city form of government.

The Census Bureau classifies towns in Massachusetts as a type of "minor civil division" and cities as a type of "populated place". However, from the perspective of Massachusetts law, politics, and geography, cities and towns are the same type of municipal unit, differing primarily in their form of government and some state laws which set different rules for each type.

The U.S. State of Colorado is divided into 64 counties. Two of these, the City and County of Denver, which serves as the state capital, and the City and County of Broomfield, have consolidated city and county governments. In addition to Denver and Broomfield, Pitkin County and Weld County operate as home rule counties with their own county charters. The other 60 counties operate under state regulations per Dillon's Rule. Counties are important units of government in Colorado since there are no civil townships or other minor civil divisions.

The United States Census Bureau estimates that El Paso County remains the most populous county in Colorado with a population estimate of 752,772, as of July 1, 2024, while Hinsdale County with a population of 747 is now the least populous. Five of the 64 Colorado counties now have more than 500,000 residents, while 12 counties have fewer than 5,000 residents.

Census divisions, in Canada and the United States, are areas delineated for the purposes of statistical analysis and presentation; they have no government in and of themselves. The census divisions of Canada are second-level census geographic unit, below provinces and territories, and above "census subdivisions" and "dissemination areas". In provinces where they exist, the census division may correspond to a county, a regional municipality or a regional district.

In the United States, the Census Bureau divides the country into four census regions and nine census divisions. The bureau also divides counties (or county equivalents) into either census county divisions or minor civil division, depending on the state.