Borough (United States) in the context of "Pennsylvania"

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.

This is a list of the most populous municipal corporations of the United States. As defined by the United States Census Bureau, an incorporated place includes cities, towns, villages, boroughs, and municipalities. A few exceptional census-designated places (CDPs) are also included in the Census Bureau's listing of incorporated places. Consolidated city-counties represent a distinct type of government that includes the entire population of a county, or county equivalent. Some consolidated city-counties, however, include multiple incorporated places. This list presents only the portion of such consolidated city-counties that are not a part of another incorporated place.

The following is a list of incorporated places in the United States with a population density of over 10,000 people per square mile. As defined by the United States Census Bureau, an incorporated place is a place that has a self-governing local government and as such has been "incorporated" by the state it is in. Each state has different laws defining how a place can be incorporated. An "incorporated place" as recognized by the U.S. Census Bureau can designate a variety of places, such as a city, town, village, borough, and township.

In 45 of the 50 states of the United States, the county is used for the level of local government immediately below the state itself. Louisiana uses parishes, and Alaska uses boroughs. In Connecticut, Massachusetts, and Rhode Island, some or all counties within states have no governments of their own; the counties continue to exist as legal entities, however, and are used by states for some administrative functions and by the United States Census bureau for statistical analysis. There are 3,242 counties and county equivalent administrative units in total, including the District of Columbia and 100 county-equivalents in the U.S. territories.

There are 41 independent cities in the United States. In Virginia, any municipality that is incorporated as a city legally becomes independent of any county. Where indicated, the statistics below do not include Virginia's 38 independent cities.

Most U.S. states and territories have at least two tiers of local government: counties and municipalities. Louisiana uses the term parish and Alaska uses the term borough for what the U.S. Census Bureau terms county equivalents in those states. Civil townships or towns are used as subdivisions of a county in 20 states, mostly in the Northeast and Midwest.

Population centers may be organized into incorporated municipalities of several types, including the city, town, borough, and village. The types and nature of these municipal entities are defined by state law, and vary from state to state. In addition to these general-purpose local governments, states may also create special-purpose local governments. Depending on the state, local governments may operate under their own charters or under general law, or a state may have a mix of chartered and general-law local governments. Generally, in a state having both chartered and general-law local governments, the chartered local governments have more local autonomy and home rule. Municipalities are typically subordinate to a county government, with some exceptions. Certain cities, for example, have consolidated with their county government as consolidated city-counties. In Virginia, cities are completely independent from the county in which they would otherwise be a part. In some states, particularly in New England, towns form the primary unit of local government below the state level, in some cases eliminating the need for county government entirely. Many rural areas and even some suburban areas of many states have no municipal government below the county level.

This list ranks the top 150 U.S. cities (incorporated places) by 2025 land area. Total areas including water are also given, but when ranked by total area, a number of coastal cities appear disproportionately larger. San Francisco is an extreme example: water makes up nearly 80% of its total area of 232 square miles (601 km).

In many cases an incorporated place is geographically large because its municipal government has merged with the government of the surrounding county. In some cases the county no longer exists, while in others the arrangement has formed a consolidated city-county (or city-borough in Alaska, or city-parish in Louisiana); these are shown in bold. Some consolidated city-counties, however, include multiple incorporated places. In such cases, this list presents only that portion (or “balance”) of such consolidated city-counties that are not a part of another incorporated place; these are indicated with asterisks (*). Cities that are not consolidated with or part of any county are independent cities, indicated with two asterisks (**).

Juneau (/ˈdʒuːnoʊ/ JOO-noh; Tlingit: Dzántik'i Héeni [ˈtsʌ́ntʰɪ̀kʼɪ̀ ˈhíːnɪ̀] transl. Base of the Flounder's River), officially the City and Borough of Juneau, is the capital of the U.S. state of Alaska, located along the Gastineau Channel and the Alaskan panhandle. Juneau was named the capital of Alaska in 1906, when the government of what was then the District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900. On July 1, 1970, the City of Juneau merged with the City of Douglas and the surrounding Greater Juneau Borough to form the current consolidated city-borough, which ranks as the second-largest municipality in the United States by area and is larger than both Rhode Island and Delaware.

Downtown Juneau is nestled at the base of Mount Juneau and it is across the channel from Douglas Island. As of the 2020 census, the City and Borough had a population of 32,255, making it the third-most populous city in Alaska after Anchorage and Fairbanks, but the sixth-least populous U.S. state capital. Juneau experiences a daily influx of 21,000 people or more from visiting cruise ships between the months of May and September.

The U.S. state of Alaska is divided into 19 organized boroughs and 11 census areas in the Unorganized Borough. Boroughs and census areas are both treated as county-level equivalents by the Census Bureau.

Delegates to the Alaska Constitutional Convention wanted to avoid the traditional county system and adopted their own unique model with different classes of boroughs varying in powers and duties. Many of the most densely populated regions of the state are part of Alaska's boroughs, which function similarly to counties in other states. There are four different classifications of organized boroughs: "Unified Home Rule" or "Non-unified Home Rule" (may exercise all legislative powers not prohibited by law or charter); "First Class" (may exercise any power not prohibited by law on a non-area wide basis by adopting ordinances); and "Second Class" (must gain voter approval for authority to exercise many non-area wide powers).