Ranking of Connecticut Cities and Places By Percentage of Population with Unclassified Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 596.88K people in Connecticut with Unclassified ancestry (16.56% of Connecticut population). Among all Connecticut cities and places with a population of at least 10K, Storrs CDP had the highest percentage of its population with Unclassified ancestry (75.14%), followed by Trumbull Center CDP (23.02%), and Norwich city (22.43%).

The chart and table below shows the top 10 cities with high percentage of its population having Unclassified ancestry.

You can see similar information for other states and for other ancestry groups in Connecticut.

Data Source: US Census Bureau.
Ranking of Connecticut Cities and Places By Percentage of Population with Unclassified Ancestry in 2021
Storrs CDP
Trumbull Center CDP
Norwich city
Torrington city
Orange CDP
Ansonia city
Windsor Locks CDP
Danbury city
Meriden city
Milford city (balance)
Ranking of Connecticut Cities and Places By Percentage of Population with Unclassified Ancestry in 2021
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Rank Ciy or Place Percentage of Pop. (%)
1 Storrs CDP 75.14
2 Trumbull Center CDP 23.02
3 Norwich city 22.43
4 Torrington city 21.94
5 Orange CDP 20.68
6 Ansonia city 18.96
7 Windsor Locks CDP 18.77
8 Danbury city 18.45
9 Meriden city 18.27
10 Milford city (balance) 18.12
11 Willimantic CDP 17.97
12 Bethel CDP 17.80
13 Naugatuck borough 17.50
14 New London city 16.40
15 Wethersfield CDP 16.39
16 Shelton city 16.05
17 Bristol city 15.79
18 East Hartford CDP 15.76
19 Waterbury city 15.69
20 New Britain city 15.45
21 Norwalk city 15.24
22 Bridgeport city 15.02
23 Greenwich CDP 14.74
23 Middletown city 14.74
24 East Haven CDP 14.65
25 West Hartford CDP 14.55
26 New Haven city 14.47
27 West Haven city 14.26
28 Stamford city 14.02
29 Manchester CDP 13.97
30 Wallingford Center CDP 13.77
31 Hartford city 13.14
32 North Haven CDP 12.63
33 Derby city 12.00
34 Newington CDP 10.35