Massachusetts' Largest Ancestry Groups

Irish-Americans dominate in Massachusetts. Over 23% over residents claim Irish heritage, making it the state's largest ancestry group. Here is a look at the top 50 largest ancestries in Massachusetts:

Rank	Ancestry	Massachusetts Estimated Population	Percentage of Total Population
	Total:	6,557,254	100.0%
1	Irish	1,521,511	23.2%
2	Italian	889,338	13.6%
3	English	706,577	10.8%
4	French (except Basque)	516,110	7.9%
5	German	423,503	6.5%
6	Polish	326,749	5.0%
7	Portuguese	314,493	4.8%
8	French Canadian	257,393	3.9%
9	American	211,334	3.2%
10	Scottish	163,574	2.5%
11	Russian	126,183	1.9%
12	Swedish	123,920	1.9%
13	Greek	83,943	1.3%
14	Brazilian	73,312	1.1%
15	Haitian	73,201	1.1%
16	European	62,463	1.0%
17	Canadian	60,108	0.9%
18	Cape Verdean	54,323	0.8%
19	Lithuanian	51,763	0.8%
20	Scotch-Irish	45,868	0.7%
21	Dutch	45,130	0.7%
22	Norwegian	34,872	0.5%
23	Lebanese	33,695	0.5%
24	Armenian	33,095	0.5%
25	Eastern European	31,003	0.5%
26	British	29,713	0.5%
27	African	28,650	0.4%
28	Jamaican	26,526	0.4%
29	Finnish	24,960	0.4%
30	Ukrainian	23,381	0.4%
31	Hungarian	23,133	0.4%
32	Welsh	22,854	0.3%
33	Austrian	17,010	0.3%
34	Albanian	15,852	0.2%
35	Danish	12,874	0.2%
36	Swiss	12,503	0.2%
37	Czech	10,725	0.2%
38	Iranian	9,543	0.1%
39	Romanian	8,528	0.1%
40	West Indian	8,320	0.1%
41	Scandinavian	7,830	0.1%
42	Northern European	7,581	0.1%
43	Other Arab	6,761	0.1%
44	Syrian	6,366	0.1%
45	Slovak	6,234	0.1%
46	Other Subsaharan African	5,993	0.1%
47	Moroccan	5,973	0.1%
48	Yugoslavian	5,844	0.1%
49	Turkish	5,669	0.1%
50	Nigerian	5,653	0.1%

Source: U.S. Census Bureau, 2010 American Community Survey

B04006 People Reporting Ancestry, 1 year estimates

The District of Columbia's largest ancestries in 2010

Irish-Americans are the largest ancestry group in the nation's capital. Here is a look at Washington D.C.'s  50 biggest ancestries in 2010:

Rank	Ancestry	District of Columbia Estimated Population	Percentage of Total Population
	Total:	604,453	100.0%
1	Irish	41,980	6.9%
2	German	39,294	6.5%
3	English	31,100	5.1%
4	Italian	16,444	2.7%
5	French (except Basque)	10,981	1.8%
6	African	10,011	1.7%
7	Polish	9,997	1.7%
8	Russian	9,862	1.6%
9	European	7,962	1.3%
10	American	7,181	1.2%
11	Scottish	6,994	1.2%
12	Ethiopian	4,779	0.8%
13	Eastern European	4,642	0.8%
14	Swedish	4,522	0.7%
15	British	4,134	0.7%
16	Dutch	4,078	0.7%
17	Scotch-Irish	3,582	0.6%
18	Jamaican	3,056	0.5%
19	Hungarian	2,946	0.5%
20	Welsh	2,941	0.5%
21	Norwegian	2,923	0.5%
22	Greek	2,775	0.5%
23	Nigerian	2,332	0.4%
24	Austrian	2,091	0.3%
25	Ukrainian	1,854	0.3%
26	Swiss	1,808	0.3%
27	West Indian	1,750	0.3%
28	Lebanese	1,720	0.3%
29	Scandinavian	1,564	0.3%
30	Lithuanian	1,503	0.2%
31	French Canadian	1,494	0.2%
32	Portuguese	1,368	0.2%
33	Romanian	1,300	0.2%
34	Danish	1,223	0.2%
35	Trinidadian and Tobagonian	1,221	0.2%
36	Finnish	1,152	0.2%
37	Czech	1,097	0.2%
38	Iranian	1,006	0.2%
39	Canadian	964	0.2%
40	Croatian	951	0.2%
41	Turkish	910	0.2%
42	Haitian	879	0.1%
43	Brazilian	830	0.1%
44	Other Subsaharan African	787	0.1%
45	Arab	744	0.1%
46	Slovak	697	0.1%
47	Albanian	695	0.1%
48	Australian	618	0.1%
49	Belgian	598	0.1%
50	Northern European	554	0.1%

Source: U.S. Census Bureau, 2010 American Community Survey

B04006 People Reporting Ancestry, 1 year estimates