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All 1,942 state senate districts

Upper-chamber state legislative districts, every state, grouped by state. Boundaries at their 2024/2025 vintage.

state senate districts ranked by presidential margin, one column per election from 1892 to 2024, with the latest demographic snapshot (population, income, $200k+ households, poverty, median age, education, race and ethnicity, language, religion) pinned at the right. Use the column headers to re-sort.

1State Senate District 25MD	+85.3^†	+91.5	+91.9	+89.6	+90.2^†	+85.1	135,779	$98.7k	—	9.9%	14.6%	40.9	86.6%	36.7%	16.4%	4.6%	80.8%	9.1%	1.5%	30.7%	—	—	—
2Legislative (Senate) District 43WA	+71.7^†	+77.2	+72.7	+81.1	+83.2	+81.3	156,849	$126.8k	—	10.4%	9.7%	32.3	93.8%	56.7%	24.2%	60.2%	4.1%	7.5%	20.4%	31.1%	—	—	—
3State Senate District 22OR	+69.7^†	+76.9	+76.7	+76.3	+82.0	+81.0	142,070	$97.6k	—	13.2%	13.8%	36.9	92.5%	48.9%	19.6%	64.2%	9.6%	13.0%	4.0%	18.8%	—	—	—
4Legislative (Senate) District 36WA	+62.2^†	+69.5	+67.7	+77.1	+80.8	+80.9	157,072	$140.8k	—	5.9%	9.7%	36.3	93.8%	56.7%	24.2%	71.2%	2.1%	6.8%	11.6%	31.1%	—	—	—
5State Senate District 24MD	+82.6^†	+89.7	+90.7	+88.6	+88.4^†	+80.5	135,172	$100.7k	—	9.2%	14.6%	40.6	86.6%	36.7%	16.4%	5.2%	75.9%	12.6%	2.4%	30.7%	—	—	—
6State Senate District 40MD	+79.4^†	+85.8	+87.7^†	+82.8	+84.9	+80.1	124,305	$47.1k	—	25.8%	25.5%	36.9	87.7%	36.1%	18.1%	21.0%	66.2%	4.4%	3.6%	12.0%	—	—	—
7State Senate District 25NY	+94.4^†	+95.5^†	+96.0^†	+92.4^†	+88.3^†	+79.9	318,346	$77.1k	—	25.7%	26.1%	34.0	84.4%	42.1%	17.1%	23.7%	46.0%	19.4%	5.2%	44.6%	—	—	—
8State Senate District 26MD	+75.1^†	+85.6	+86.5	+85.5	+85.9^†	+79.7	135,433	$105.9k	—	7.7%	14.6%	42.8	86.6%	36.7%	16.4%	6.3%	69.8%	15.5%	4.1%	30.7%	—	—	—
9State Senate District 3PA	+87.6^†	+89.3	+91.2	+89.3	+85.1	+78.9	262,203	$47.4k	—	30.1%	29.0%	34.2	87.8%	35.4%	15.8%	15.1%	54.8%	20.3%	6.4%	24.4%	—	—	—
10Legislative (Senate) District 46WA	+62.9^†	+70.1	+68.2	+77.1	+79.7	+78.3	157,135	$120.3k	—	10.8%	9.7%	34.7	93.8%	56.7%	24.2%	62.4%	4.7%	8.1%	15.7%	31.1%	—	—	—
11State Senate District 44GA	+60.4^†	+72.7	+71.7	+77.6	+79.0	+77.5	193,156	$80.2k	—	16.0%	22.4%	36.3	89.1%	39.3%	16.7%	31.1%	51.5%	7.9%	5.0%	21.0%	—	—	—
12State Senate District 61MN	+57.0^†	+62.4	+58.4	+68.2	+75.5	+77.2	85,044	$88.9k	—	9.8%	10.9%	36.2	94.1%	54.1%	20.3%	75.8%	8.8%	5.1%	4.2%	18.2%	—	—	—
13State Senate District 7IL	+63.4^†	+72.0	+71.8	+76.1	+77.5	+77.1	217,217	$72.4k	—	15.6%	17.9%	36.8	88.6%	42.7%	18.0%	52.3%	15.7%	17.0%	10.1%	35.8%	—	—	—
14State Senate District 36GA	+69.3^†	+76.9	+73.8	+78.5	+78.2	+76.9	192,273	$81.7k	—	18.8%	15.9%	34.2	93.8%	58.5%	24.6%	33.1%	51.3%	7.6%	3.6%	17.7%	—	—	—
15State Senate District 45MD	+70.1^†	+79.3	+81.3^†	+78.5	+81.8	+76.8	124,582	$58.2k	—	19.6%	25.5%	37.6	87.7%	36.1%	18.1%	15.2%	72.8%	6.1%	1.3%	12.0%	—	—	—
16State Senate District 63MN	+55.1^†	+60.7	+62.5	+67.7	+75.4	+76.8	84,624	$107.1k	—	7.8%	10.9%	39.4	94.1%	54.1%	20.3%	71.6%	11.1%	8.0%	2.5%	18.2%	—	—	—
17State Senate District 28NJ	+80.7^†	+84.7	+86.9	+86.6	+84.7	+76.7	228,206	$67.2k	—	17.6%	18.0%	35.7	86.6%	39.1%	16.8%	13.3%	66.2%	13.1%	1.9%	39.1%	—	—	—
18State Senate District 20NY	+83.4^†	+86.9^†	+88.8^†	+85.2^†	+83.4^†	+76.1	318,855	$92.5k	—	15.5%	26.1%	36.9	84.4%	42.1%	17.1%	32.2%	43.7%	11.7%	4.7%	44.6%	—	—	—
19State Senate District 62MN	+74.3^†	+77.1	+77.4	+76.8	+82.7	+75.9	85,241	$61.4k	—	21.5%	10.9%	32.1	94.1%	54.1%	20.3%	42.8%	25.2%	21.1%	2.8%	18.2%	—	—	—
20State Senate District 43MD	+60.1^†	+68.3	+68.6	+70.2	+76.8	+75.5	126,409	$72.5k	—	15.3%	23.8%	34.6	88.2%	36.9%	18.2%	36.6%	46.4%	5.1%	7.0%	12.5%	—	—	—
21State Senate District 5MO	+80.0^†	+83.3	+82.6	+79.6	+78.9	+75.4	180,730	$47.4k	—	26.9%	29.7%	35.9	90.8%	41.1%	18.6%	27.3%	59.6%	4.7%	3.5%	9.4%	—	—	—
22State Senate District 30NY	+90.0^†	+92.2	+92.5	+89.9	+85.3	+75.1	318,136	$58.9k	—	26.0%	20.8%	37.1	89.5%	64.2%	31.3%	21.2%	34.6%	31.9%	6.8%	36.9%	—	—	—
23Legislative (Senate) District 37WA	+68.1^†	+74.0	+76.2	+80.2	+77.1	+73.3	156,652	$100.1k	—	13.9%	9.7%	37.5	93.8%	56.7%	24.2%	36.7%	18.2%	9.3%	27.1%	31.1%	—	—	—
24Second Suffolk DistrictMA	+87.2^†	+88.3	+88.7	+87.3	+85.1	+73.3	181,874	$67.5k	—	21.2%	20.3%	33.5	87.5%	50.6%	23.5%	20.3%	39.9%	26.4%	6.4%	38.8%	—	—	—
25State Senate District 28MS	+53.9^†	+67.3	+71.0	+73.0	+74.9	+72.9	57,247	$40.6k	—	27.4%	32.1%	32.7	88.7%	31.2%	13.3%	11.5%	83.6%	2.0%	0.7%	3.4%	—	—	—
26State Senate District 13IL	+79.3^†	+84.1	+80.6	+80.8	+78.6	+72.6	217,228	$67.3k	—	21.4%	17.9%	35.8	88.6%	42.7%	18.0%	23.5%	51.8%	12.8%	7.8%	35.8%	—	—	—
27State Senate District 21OR	+57.3^†	+65.7	+64.3	+65.3	+71.9	+72.2	140,636	$92.0k	—	9.6%	13.3%	39.2	92.7%	48.2%	19.2%	77.8%	1.7%	7.8%	4.2%	18.2%	—	—	—
28State Senate District 5LA	+66.3^†	+68.9	+70.7	+73.3	+75.2	+71.8	123,995	$56.7k	—	24.4%	28.9%	38.0	88.3%	37.7%	16.3%	35.3%	49.7%	8.5%	2.1%	14.7%	—	—	—
29State Senate District 7CA	+73.0^†	+78.8	+78.5	+80.2	+79.4	+71.7	958,648	$108.3k	—	12.3%	9.2%	38.2	89.1%	49.8%	21.4%	30.5%	15.2%	27.1%	19.6%	43.8%	—	—	—
30State Senate District 23MD	+40.1^†	+62.0	+64.0	+63.6	+75.0^†	+71.5	135,858	$133.4k	—	5.6%	14.6%	42.3	86.6%	36.7%	16.4%	17.8%	64.7%	8.7%	3.5%	30.7%	—	—	—
31State Senate District 47MD	+75.2^†	+84.9	+87.2	+85.5	+82.9^†	+71.5	136,259	$78.4k	—	16.1%	14.6%	34.8	86.6%	36.7%	16.4%	6.2%	39.6%	49.2%	2.3%	30.7%	—	—	—
32State Senate District 20MD	+63.3^†	+70.6	+71.4	+77.3	+80.0	+71.0	130,161	$106.0k	—	10.2%	9.0%	36.5	91.3%	60.6%	33.4%	30.6%	32.3%	24.3%	7.7%	43.0%	—	—	—
33State Senate District 47NY	+66.1^†	+72.9	+67.5	+77.9	+77.6	+71.0	319,329	$142.8k	—	10.2%	20.8%	41.1	89.5%	64.2%	31.3%	62.0%	5.9%	14.0%	13.1%	36.9%	—	—	—
34State Senate District 19NY	+82.6^†	+85.9^†	+91.1^†	+86.2^†	+80.8^†	+70.5	318,632	$59.3k	—	19.8%	25.7%	39.6	84.3%	41.9%	17.0%	5.1%	63.9%	19.3%	4.8%	45.0%	—	—	—
35State Senate District 22MD	+57.8^†	+74.0	+79.0	+79.0	+79.7^†	+70.5	136,297	$95.1k	—	13.6%	14.6%	35.5	86.6%	36.7%	16.4%	13.5%	44.3%	32.7%	5.7%	30.7%	—	—	—
36State Senate District 39GA	+54.2^†	+65.1	+62.7	+70.1	+71.2	+69.9	191,556	$77.1k	—	17.4%	15.9%	33.1	93.8%	58.4%	24.6%	29.3%	54.9%	6.6%	4.8%	17.7%	—	—	—
37State Senate District 10GA	+52.7^†	+62.4	+63.0	+66.2	+70.1	+69.7	192,983	$78.7k	—	12.3%	18.8%	39.9	91.2%	44.0%	19.1%	23.5%	63.3%	5.4%	3.6%	19.3%	—	—	—
38Legislative (Senate) District 34WA	+49.9^†	+58.7	+59.8	+66.7	+69.4	+69.6	156,596	$119.3k	—	9.8%	9.7%	39.0	93.8%	56.7%	24.2%	58.6%	7.7%	13.3%	11.4%	31.1%	—	—	—
39State Senate District 7PA	+69.2^†	+73.5	+74.0	+73.9	+73.8	+69.1	262,503	$61.1k	—	21.4%	27.0%	33.4	88.5%	37.0%	16.5%	34.5%	51.1%	4.5%	5.3%	23.5%	—	—	—
40State Senate District 26WI	+52.7^†	+63.7	+61.7	+64.8	+71.8	+69.0	178,964	$69.0k	—	21.6%	8.7%	29.1	96.4%	55.3%	22.2%	70.6%	7.2%	8.8%	7.9%	11.5%	—	—	—
41State Senate District 3IL	+82.2^†	+86.3	+82.2	+81.1	+76.6	+68.5	217,354	$70.3k	—	24.6%	17.9%	33.8	88.6%	42.7%	18.0%	21.3%	50.1%	17.6%	7.6%	35.8%	—	—	—
42State Senate District 6WI	+61.2^†	+68.3	+69.9	+69.9	+71.2	+68.5	178,495	$50.2k	—	26.3%	23.7%	31.3	89.5%	34.7%	12.6%	27.4%	56.5%	6.5%	4.7%	18.6%	—	—	—
43State Senate District 60MN	+51.5^†	+57.3	+57.9	+62.5	+73.1	+68.3	84,969	$62.6k	—	25.2%	10.9%	25.9	94.1%	54.1%	20.3%	62.8%	14.4%	7.5%	9.5%	18.2%	—	—	—
44State Senate District 4WI	+57.6^†	+65.4	+67.5	+67.5	+68.4	+68.2	178,419	$51.8k	—	22.2%	23.7%	33.4	89.5%	34.7%	12.6%	24.7%	58.6%	5.6%	6.3%	18.6%	—	—	—
45State Senate District 18CO	+50.7^†	+60.7	+55.2	+63.6	+70.1	+68.0	164,205	$105.4k	—	15.6%	7.0%	32.8	95.8%	64.2%	30.0%	77.4%	1.0%	9.7%	6.2%	15.1%	—	—	—
46State Senate District 23OR	+46.9^†	+58.8	+60.4	+61.5	+66.6	+67.9	139,900	$95.7k	—	11.4%	13.8%	40.8	92.5%	48.9%	19.6%	64.5%	5.1%	11.0%	10.5%	18.8%	—	—	—
47State Senate District 11NE	+71.3^†	+79.6	+73.4	+72.6	+70.5	+67.6	40,338	$41.8k	—	32.9%	14.3%	30.4	91.4%	42.1%	15.9%	20.6%	49.1%	15.9%	6.1%	16.5%	—	—	—
48State Senate District 64MN	+45.3^†	+50.8	+49.2	+58.4	+67.2	+67.4	85,022	$90.2k	—	10.0%	16.8%	37.4	91.7%	45.6%	18.4%	77.5%	8.2%	5.2%	3.7%	23.3%	—	—	—
49State Senate District 4PA	+64.7^†	+69.2	+68.5	+71.0	+70.8	+67.3	267,449	$77.1k	—	12.3%	22.9%	40.8	89.9%	40.5%	18.0%	38.2%	49.1%	4.6%	3.1%	21.6%	—	—	—
50State Senate District 5IL	+74.4^†	+80.3	+74.7	+78.3	+75.1	+67.0	217,334	$92.1k	—	20.3%	17.9%	32.9	88.6%	42.7%	18.0%	33.9%	43.3%	11.2%	8.0%	35.8%	—	—	—
51State Senate District 6IL	+43.5^†	+55.4	+43.3	+64.3	+68.3	+67.0	217,449	$113.3k	—	8.2%	17.9%	32.8	88.6%	42.7%	18.0%	75.7%	4.0%	8.3%	7.6%	35.8%	—	—	—
52State Senate District 59MN	+64.3^†	+68.5	+69.2	+66.9	+69.7	+66.4	84,924	$84.1k	—	17.2%	10.9%	33.8	94.1%	54.1%	20.3%	37.3%	35.3%	9.7%	10.0%	18.2%	—	—	—
53State Senate District 8PA	+69.2^†	+73.3	+77.5	+73.4	+71.1	+66.4	255,286	$52.8k	—	21.5%	24.4%	34.2	89.6%	37.3%	16.6%	25.6%	56.9%	5.1%	7.5%	21.2%	—	—	—
54State Senate District 21OH	+64.2^†	+67.4	+69.0	+69.9	+68.9	+66.3	375,348	$55.7k	—	18.8%	22.9%	40.5	91.5%	36.5%	15.7%	32.0%	58.6%	2.8%	2.2%	12.3%	—	—	—
55State Senate District 41MD	+63.3^†	+74.2	+71.5^†	+72.8	+72.6	+65.7	125,128	$65.2k	—	17.2%	25.5%	38.4	87.7%	36.1%	18.1%	26.1%	62.4%	4.4%	2.6%	12.0%	—	—	—
56State Senate District 33TN	+61.7^†	+68.5	+71.5	+72.0	+70.6	+65.3	203,171	$53.4k	—	21.8%	26.6%	31.5	89.9%	34.3%	14.0%	14.0%	69.1%	12.4%	2.0%	11.2%	—	—	—
57State Senate District 36NY	+73.7^†	+81.5	+85.6^†	+81.5^†	+77.1	+65.3	318,959	$69.0k	—	18.7%	34.8%	39.8	76.0%	23.7%	9.1%	8.4%	51.9%	27.1%	3.0%	56.0%	—	—	—
58State Senate District 28ME	+63.1^†	+62.5	+54.5^†	+65.7	+74.0	+65.1^†	37,774	$74.4k	—	12.2%	8.1%	36.9	96.8%	53.0%	21.4%	76.4%	11.4%	4.7%	2.6%	7.6%	—	—	—
59State Senate District 33IN	+49.5^†	+66.9	+63.7	+65.8	+68.0	+64.7	135,603	$62.9k	—	17.1%	21.5%	32.6	88.1%	34.8%	12.7%	35.4%	40.4%	17.5%	2.0%	18.2%	—	—	—
60State Senate District 31CO	+43.1^†	+55.0	+48.0	+59.4	+67.0	+64.3	164,017	$99.9k	—	8.8%	16.0%	36.8	91.2%	56.5%	22.3%	73.9%	5.7%	11.5%	3.2%	23.9%	—	—	—
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1,942 state senate districts · 34 elections · 1892–2024Margins are D−R two-party share · MIT Election Lab · VEST · Demographics: ACS 2024 5-year · Religion: 2020 US Religion Census · † estimated — that cycle was reported at county/municipality level (COVID-era consolidation), sub-county detail interpolated from adjacent cycles