All Pew Research Center surveys about U.S. politics and policy include questions about partisan affiliation. In 2014 a total of 25,010 respondents were asked the following:

In politics TODAY, do you consider yourself a Republican, Democrat, or independent? (IF INDEPENDENT, OTHER, DON’T KNOW): As of today do you lean more to the Republican Party or more to the Democratic Party?

Detailed demographic breakdowns of party identification are presented here, or can be downloaded (CSV or PDF). Report: A Deep Dive Into Party Affiliation

Total Population

	Rep %	Dem %	Ind %	(VOL.) Other/DK %		Rep/Lean Rep %	Dem/Lean Dem %	No leaning %	Unweighted N
TOTAL
	23	32	39	6		39	48	13	25,010
GENDER
Men	24	26	45	5		43	44	13	12,843
Women	23	37	35	6		36	52	12	12,167
RACE/ETHNICITY
White, non-Hispanic	30	25	40	5		49	40	11	17,823
Black, non-Hispanic	5	64	26	5		11	80	9	2,496
Hispanic	13	34	44	9		26	56	18	2,594
Asian, non-Hispanic (English-speaking only)	11	37	46	6		23	65	12	641
GENERATION
Millennial (ages 18-33 in 2014)	18	28	48	6		35	51	14	5,315
Generation X (34-49)	22	32	40	6		38	49	13	5,206
Baby-Boomer (50-68)	25	34	35	5		41	47	11	9,392
Silent (69-86)	33	33	29	5		47	43	10	4,350
DETAILED GENERATION
Younger Millennial (18-25)	18	27	50	5		36	51	13	2,693
Older Millennial (26-33)	18	28	47	7		33	50	16	2,622
Younger Gen Xer (34-41)	20	31	43	6		36	49	14	2,326
Older Gen Xer (42-49)	23	33	37	7		40	48	12	2,880
Younger Boomer (50-58)	26	32	36	6		41	46	12	4,414
Older Boomer (59-68)	25	37	34	4		41	49	10	4,978
Younger Silent (69-78)	32	33	30	6		47	43	10	3,105
Older Silent (79-86)	35	34	27	4		48	43	9	1,245
EDUCATION
College graduate+	24	34	39	4		40	52	9	10,270
Post graduate degree	20	38	38	4		35	57	8	3,972
College graduate	26	31	39	4		42	49	9	6,298
Some college or less	23	31	40	6		39	47	14	14,605
Some college	25	30	40	5		42	47	12	6,920
High school or less	22	31	40	7		37	47	16	7,685
FAMILY INCOME
$75,000+	30	29	38	3		48	45	8	7,578
$30,000-$74,999	24	32	40	4		41	48	10	7,811
<$30,000	17	35	42	7		31	54	15	6,995
DETAILED FAMILY INCOME
$150,000+	29	29	38	4		47	45	9	2,229
$100,000 to $149,999	30	30	37	3		48	45	6	2,566
$75,000 to $99,999	30	29	38	3		48	44	9	2,783
$50,000 to $74,999	27	30	38	4		45	45	9	3,483
$40,000 to $49,999	24	33	40	4		40	50	10	2,045
$30,000 to $39,999	19	33	43	4		37	51	13	2,283
<$30,000	17	35	42	7		31	54	15	6,995
EMPLOYED
Yes	23	30	40	7		39	48	14	2,056
Full-time	24	30	41	6		39	47	14	1,525
Part-time	22	31	39	9		37	49	14	531
No	22	35	34	9		36	49	15	1,238
MARITAL STATUS
Married	28	27	39	6		48	41	12	6,758
Unmarried	17	34	43	6		32	54	14	6,168
DETAILED MARITAL STATUS
Married	28	27	39	6		48	41	12	6,758
Living with a partner	13	32	50	6		31	55	14	779
Divorced/Separated	17	37	39	7		32	54	14	1,740
Widowed	27	38	30	5		40	49	11	1,231
Never married	15	33	47	5		30	56	14	2,418
PARENT OR GUARDIAN
Yes	21	30	42	7		38	47	15	1,207
No	23	31	40	6		39	48	13	3,618
GENERATION BY GENDER
Millennial men	18	23	53	5		38	48	14	3,088
Millennial women	18	33	43	6		32	54	14	2,227
Gen Xer men	23	26	45	6		43	44	13	2,823
Gen Xer women	21	38	35	7		33	53	13	2,383
Boomer men	26	29	39	5		45	43	12	4,735
Boomer women	24	39	31	5		38	52	11	4,657
Silent men	35	26	35	4		54	37	9	1,913
Silent women	31	39	25	6		42	48	10	2,437
EDUCATION 2-WAY BY GENDER
College grad men	25	26	45	4		45	46	9	5,485
College grad women	22	41	33	4		35	57	8	4,785
Some coll or less men	23	26	45	6		42	44	14	7,277
Some coll or less women	23	35	35	7		36	50	14	7,328
EDUCATION 4-WAY BY GENDER
Post graduate men	22	29	45	4		42	50	8	2,142
Post graduate women	18	46	32	4		29	64	7	1,830
College men	27	24	45	4		47	43	10	3,343
College women	25	37	33	5		38	53	8	2,955
Some college men	26	25	45	5		46	43	12	3,281
Some college women	24	35	36	5		38	51	12	3,639
HS or less men	22	27	44	6		40	44	16	3,996
HS or less women	22	35	35	8		34	49	16	3,689
MARITAL STATUS BY GENDER
Married men	28	23	43	6		51	38	11	3,715
Married women	28	31	35	6		44	44	12	3,043
Unmarried men	17	28	50	5		34	51	14	2,859
Unmarried women	17	39	38	6		29	57	14	3,309
PARENT BY GENDER
Parent men	24	27	44	6		43	42	15	606
Parent women	19	33	40	9		33	51	16	601
Non-parent men	24	26	45	5		42	46	13	1,834
Non-parent women	22	36	35	6		36	51	13	1,784
REGION
Northeast	20	36	38	6		34	53	13	4,334
New England (CT ME MA NH RI VT)	16	32	48	4		35	52	14	1,181
Middle Atlantic (DE DC MD NJ NY PA)	20	39	34	6		33	55	12	3,757
Midwest	24	31	40	6		40	47	13	5,657
Great Lakes-East North (IN IL MI OH WI)	23	32	39	6		39	48	12	3,794
Midwest-West North (IA KS MN MO NE ND SD)	26	28	40	6		43	43	14	1,863
South	25	30	39	5		42	46	12	9,268
South Atlantic (FL GA NC SC VA WV)	25	30	40	5		42	46	12	4,534
South Central (AL AR KY LA MS OK TN TX)	27	28	39	6		44	43	13	4,130
West	22	30	42	7		38	49	13	5,751
Mountain (AZ CO ID NM MT UT NV WY)	27	24	43	6		45	43	13	2,080
Pacific (AK CA HI OR WA)	19	33	41	7		34	53	14	3,671
COMMUNITY TYPE
Urban	18	38	39	6		31	57	12	8,118
Suburban	25	29	40	5		43	45	12	12,065
Rural	29	26	39	6		47	39	14	4,556
RELIGIOUS TRADITION
White Non-Hisp Evangelical Protestant	46	14	34	5		68	22	9	4,814
White Non-Hisp Mainline Protestant	30	26	38	6		48	40	12	4,144
Black Protestant	5	68	22	4		10	82	8	1,812
Total Catholic	24	33	37	6		40	48	12	5,125
White Non-Hispanic Catholic	31	30	36	3		50	41	10	3,435
Hispanic Catholic	12	38	41	9		25	58	17	1,283
Mormon	49	12	35	3		70	22	9	473
Jewish	16	47	33	4		31	61	8	516
Total Unaffiliated	10	34	50	6		25	61	14	4,983
Atheist	6	42	47	5		16	72	12	781
Agnostic	8	39	49	4		23	69	8	902
Nothing in particular	12	31	52	6		27	57	16	3,300
RELIGIOUS TRADITION BY GENERATION
White NH Evangelical Protestant Millennial	44	9	44	4		70	19	12	559
White NH Evangelical Protestant Xer	46	12	36	5		70	20	10	858
White NH Evangelical Protestant Boomer	45	16	34	5		68	23	9	1,984
White NH Evangelical Protestant Silent	51	18	26	5		67	25	8	1,255
White NH Mainline Protestant Millennial	29	22	44	6		48	37	15	576
White NH Mainline Protestant Xer	28	27	38	7		48	39	12	721
White NH Mainline Protestant Boomer	29	27	38	5		47	41	12	1,725
White NH Mainline Protestant Silent	33	30	32	5		49	41	10	964
Total Catholic Millennial	20	28	45	7		36	48	16	930
Total Catholic Xer	22	32	39	7		39	49	12	1,120
Total Catholic Boomer	26	37	33	4		41	48	11	2,005
Total Catholic Silent	27	38	30	4		44	46	10	919
White NH Catholic Millennial	32	24	42	2		49	39	12	387
White NH Catholic Xer	33	27	35	4		53	38	8	642
White NH Catholic Boomer	30	32	35	3		47	43	9	1,508
White NH Catholic Silent	30	33	34	4		49	41	10	769
Hispanic Catholic Millennial	12	30	48	10		28	53	20	449
Hispanic Catholic Xer	10	38	43	9		23	61	16	390
Hispanic Catholic Boomer	15	46	32	8		25	59	16	344
Total Unaffiliated Millennial	9	30	56	6		24	62	14	1,724
Total Unaffiliated Xer	11	35	49	5		26	60	14	1,171
Total Unaffiliated Boomer	12	36	46	6		25	60	14	1,556
Total Unaffiliated Silent	14	45	36	5		25	64	11	452