Population history for Ansonia
| Year | Estimated Population |
|---|
|
2011
|
19,219
|
|
2010
|
19,249
|
|
2009
|
18,514
|
|
2008
|
18,503
|
|
2007
|
18,503
|
|
2006
|
18,533
|
|
2005
|
18,590
|
|
2004
|
18,687
|
|
2003
|
18,719
|
|
2002
|
18,658
|
|
2001
|
18,624
|
|
2000
|
18,570
|
|
1999
|
17,656
|
|
1998
|
17,719
|
|
1997
|
17,769
|
|
1996
|
17,829
|
|
1995
|
17,889
|
|
1994
|
17,955
|
|
1993
|
18,031
|
|
1992
|
18,150
|
|
1991
|
18,272
|
|
1990
|
18,440
|