County-Level Population Data for Connecticut

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The table is sorted in ascending order by FIPS code. Click a column title to sort by that column; click again to reverse the sort.

FIPS1	County name	RUC code2	Pop. 1990	Pop. 2000	Pop. 2010	Change 1990-2000	Change 2000-10
9001	Fairfield County	2	827,645	882,622	916,829	6.6%	3.9%
9003	Hartford County	1	851,783	857,184	894,014	0.6%	4.3%
9005	Litchfield County	4	174,092	182,183	189,927	4.7%	4.3%
9007	Middlesex County	1	143,196	155,088	165,676	8.3%	6.8%
9009	New Haven County	2	804,219	823,993	862,477	2.5%	4.7%
9011	New London County	2	254,957	259,108	274,055	1.6%	5.8%
9013	Tolland County	1	128,699	136,377	152,691	6.0%	12.0%
9015	Windham County	4	102,525	109,095	118,428	6.4%	8.6%

Source: U.S. Census Bureau, 1990 and 2000 Censuses of Population (corrected), and 2010 county redistricting files.

1) The FIPS codes uniquely identify each county and are part of the Federal Information Processing Standards (FIPS) developed by the National Institute of Standards and Technology (NIST), U.S. Department of Commerce. For more information, see the NIST FIPS publication page.

2) The 2003 rural-urban continuum codes classify metropolitan counties (codes 1 through 3) by size of the Metropolitan Statistical Area (MSA), and nonmetropolitan counties (codes 4 through 9) by degree of urbanization and proximity to metro areas. See rural-urban continuum codes for precise definitions of each code.

Download the State- and county-level data in Excel format.