Historical United States Census totals for New Haven County, Connecticut

This article shows U.S. Census totals for New Haven County, Connecticut, broken down by municipality, from 1900 to 2000.

Like most areas of New England, New Haven County is (and has been at all times since well before the 20th century) entirely divided into incorporated municipalities. There is no unincorporated territory.

There are three types of municipalities in Connecticut: towns, boroughs and cities. As in the other New England states, towns are the basic unit of municipal government.

Boroughs overlay towns and assume responsibility for some municipal services within their boundaries. Boroughs are not found in any of the other New England states, and are not very common in Connecticut today, although they were somewhat more numerous in the past. A number of boroughs have disincorporated over the years, choosing to revert to full town control.

Cities also overlay towns. This is different from the other New England states, where cities are a different type of municipality equivalent to a town (this difference is related to cities having originally developed in Connecticut from the borough model). Most current cities are coextensive with their parent town, however, such that the entire municipality functions as a city. In practice, these cities are really no different from cities in the other New England states.

It is also possible for a city in Connecticut to overlay part, but not all, of a town. There are currently only one or two examples, but it was a more common arrangement in the past. Many of today’s coextensive cities were non-coextensive at one time. As with boroughs, a number of non-coextensive cities have also disincorporated over the years, choosing to revert to full town control.

The main tables below show municipalities at the town level. For any census, adding up the totals for each town should yield the county total. In cases where a community encompassed a coextensive city, the tables in the New England Historical U.S. Census Totals series mark the community as a city. In cases where a town included a non-coextensive city, the total shown below represents the entire town, including but not limited to the city. A separate section follows with population totals for boroughs and non-coextensive cities.

For more information on the New England municipal system, see New England town.

Corporate changes since 1900

1900

County Total: 269,163

(*) not a city in its entirety, but includes a non-coextensive city that encompasses a significant percentage of the town's overall population.

1910

County Total: 337,282

(*) not a city in its entirety, but includes a non-coextensive city that encompasses a significant percentage of the town's overall population.

1920

County Total: 415,214

(*) not a city in its entirety, but includes a non-coextensive city that encompasses a significant percentage of the town's overall population.

1930

County Total: 463,449

1940

County Total: 484,316

1950

County Total: 545,784

1960

County Total: 660,315

1970

County Total: 744,948

1980

County Total: 761,325

1990

County Total: 804,219

2000

County Total: 824,008

Boroughs and Non-coextensive Cities

As of 1900, New Haven County contained five boroughs and two non-coextensive cities:

In addition to the above, there were three more cities in the county which had already been made coextensive with their parent town (New Haven, Ansonia and Derby). In 1902, Waterbury, which at the time was by far the largest non-coextensive city in the state, finally became coextensive with its parent town.

The borough and town of Naugatuck have been coextensive since at or shortly after the borough's incorporation. Naugutuck is the only borough in Connecticut which has ever been coextensive with its parent town. A sixth borough, Woodmont (within the town of Milford), was incorporated in 1903. The following changes have occurred since then:

The 1910 and 1920 Census reports make reference to a borough called Fair Haven East, which is stated to be within the city of New Haven in 1910, and within the city of New Haven and town of East Haven in 1920. Its population was not tabulated in either census, apparently because boroughs and cities both fall within the same census category (incorporated places), and Census methodology of the time would not allow one to be within another. Fair Haven East is not mentioned in the 1900 or 1930 reports, and no details are provided on how or when it was created or ceased to exist.

1900

1910

1920

1930

1940

1950

1960

1970

1980

1990

2000

Note: The population of the borough of Woodmont was not reported separately from the town of Milford in the 1950 and 1960 Censuses. It is not clear why.

Notes

1970 Census

The Census Bureau made a number of revisions to 1970 census totals subsequent to their initial release. The 1970 total for New Haven County was originally reported as 761,337; and for the town of East Haven, 25,028. The totals were later revised to those shown in the list above. In addition, as had been the case with the 1950 and 1960 Censuses, the 1970 Census did not initially report the population for the borough of Woodmont separately from the city of Milford. The revision included a separate total for Woodmont. (The villages of Jericho, Vermont and Newbury, Vermont display a similar pattern.)

2000 Census

The Census Bureau made a number of revisions to 2000 census totals subsequent to their initial release. The 2000 total for the city of New Haven was originally reported as 123,626; and for the town of Hamden, 56,913. The totals were later revised to those shown in the list above. This was apparently done to correct assignment errors between these municipalities; the collective population of the two is the same using either set of figures, so the county total was not affected.

See also

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