Census Data for Ansonia

Population ...

The most recent Census Estimate<1> was for 2019 and it gave Ansonia a population of 18,636 people.

The last Decennial Census<2> was in 2010, which gave Ansonia a population of 19,249 people.

The community of Ansonia is located in New Haven County. The 2010 Census gave New Haven County; a population of 863,357 people. This means that Ansonia had 2.23% of the county's total population.

At the same time, Connecticut had a population of 3,574,097 people, meaning that Ansonia had 0.54% of the total population of Connecticut.

New Haven County ...

Ansonia is located in New Haven County<3>.

The county had a population of 863,357 people at the 2010 Census. With it's population of 19,249 people, Ansonia represented 2.23% of the county's total.

For more information, please visit our Census Page for New Haven County.

Miscellaneous Information for Ansonia ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either New Haven County or the community of Ansonia:

The FIPS Codes ...
- An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
- State Code: 09 (Connecticut)
- County Code: 009 (New Haven County)
- Place Code: 01220 (Ansonia)
- State & County Code: 09/009 (Connecticut / New Haven County)
- State & Place Code: 09/01220 (Connecticut / Ansonia)

Misc. Census Codes ...
- Ansonia is located in Census Region #1 (the Northeast Region) and Division #1 (the New England Division).

For more information about the various Federal identification codes, please visit our Misc Page for Ansonia.

Footnotes ...

<1>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<2>	Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.
<3>	If you're interested in how the shape of Connecticut's counties, including New Haven, have changed over time, we recommend the Atlas of Historical County Boundaries.