United States state legislatures' partisan trend
This chart shows the trends in the partisan composition of the various state legislatures in the United States. In most cases the data point for each year is July 1, a time when few elections are scheduled. Most states hold legislative elections in the even numbered years, so the data points below are near the end of the term for most states. However, 2018 data is for the beginning of the year. Nebraska is not included in the national summaries below. Vacancies are not listed.
| National summary | 2022 | 2020 | 2018 | 2013 | 2010 | 2008 | 2006 | 2004 | |
|---|---|---|---|---|---|---|---|---|---|
| Lower houses | R 31-18 | R 28-20 | R 31-18 | R 29-18, 1 tie | D 33–16 | D 30–19 | R 25–23, 1 tie | R 26–23 | |
| Upper houses | R 31-18 | R 31-18 | R 36-14 | R 29-18, 1 Coal. | D 28–20, 1 Coal. | D 28–20, 1 Coal. | 24–24, 1 tie | R 27–21, 1 tie | |
| Both houses controlled by one party | R 30-17, 2 split | R 28-19, 2 split | R 32-14, 4 split | R 26-15, 8 split | D 27–14, 8 split | D 23–13, 13 split | R 20–19, 10 split | R 21–17, 11 split | |
| Governor and both houses controlled by one party | R 23-14, 12 divided | R 21-15, 14 divided | R 26-7, 17 divided | R 24-13, 13 divided | D 16–9, 24 divided | D 14–9, 26 divided | R 12–8, 29 divided | R 12–8, 29 divided | |
| State | House | 2022 | 2020 | 2018 | 2013 | 2010 | 2008 | 2006 | 2004 |
| Alabama | House | R 75-28 | R 75-28 | R 70-33 | R 66–39 | D 60–45 | D 62–43 | D 63–42 | D 64-41 |
| Senate | R 27-8 | R 27-8 | R 26-7, 1 Ind. | R 22–12, 1 Ind. | D 21–13, 1 Ind. | D 22–13 | D 25–10 | D 25-10 | |
| Alaska | House | Coal. 21-19 | Coal. 23-17 | D 22–18 | R 24–16 | R 22–18 | R 23–17 | R 26–14 | R 27-13 |
| Senate | Coal. 14-6 | R 13-7 | R 14-6 | R 13-7 | Coal. 16–4 | Coal. 15–5 | R 12–8 | R 12-8 | |
| Arizona | House | R 31-29 | R 31-29 | R 35-25 | R 40–20 | R 36–24 | R 33–27 | R 38–22 | R 39-20, 1 Ind. |
| Senate | R 26-7 | R 17-13 | R 17-13 | R 21–9 | R 18–12 | R 17–13 | R 18–12 | R 17-13 | |
| Arkansas | House | R 78-22 | R 76-25 | R 75-24 | D 55–44 | D 72–28 | D 75-25 | D 72-28 | D 70-30 |
| Senate | R 26-8 | R 26-9 | R 25-9 | D 20–15 | D 27–8 | D 27-8 | D 27-8 | D 27-8 | |
| California | Assembly | D 56-19 | D 61-17, 1 Ind. | D 53-25 | D 52–28 | D 50–29, 1 Ind. | D 48-32 | D 48-32 | D 48-32 |
| Senate | D 31-9 | D 29-11 | D 27-13 | D 25–15 | D 26–14 | D 25-15 | D 25-15 | D 25-15 | |
| Colorado | House | D 41-24 | D 41-24 | D 37-27 | R 33-32 | D 38–27 | D 40-25 | D 35-30 | R 37-28 |
| Senate | D 20-15 | D 19-16 | R 18-17 | D 20–15 | D 20–15 | D 20-15 | D 18-17 | R 18-17 | |
| Connecticut | House | D 95-53 | D 91-60 | D 79-72 | D 100-51 | D 114–37 | D 107-44 | D 99-52 | D 95-56 |
| Senate | D 23-13 | D 22-14 | Tied D 18-18 | D 23-13 | D 24–12 | D 23-13 | D 24-12 | D 21-15 | |
| Delaware | House | D 26-15 | D 26-15 | D 25-16 | D 26-15 | D 24–16 | R 22-19 | R 26-15 | R 29-12 |
| Senate | D 14-7 | D 12-9 | D 11-10 | D 14-7 | D 15–6 | D 13-8 | D 13-8 | D 13-8 | |
| Florida | House | R 78-40 | R 72-46 | R 76-40 | R 81-39 | R 76–44 | R 78-42 | R 85-35 | R 81-39 |
| Senate | R 24-15 | R 23-17 | R 24-15 | R 28-12 | R 26–14 | R 26-14 | R 26-14 | R 26-14 | |
| Georgia | House | R 103-77 | R 105-75 | R 116-62 | R 113-66, 1 Ind. | R 105–74, 1 Ind. | R 107-73 | R 100-79, 1 Ind. | D 107-72, 1 Ind. |
| Senate | R 34-22 | R 35-21 | R 36-17 | R 36-20 | R 34–22 | R 34-22 | R 34-22 | R 30-26 | |
| Hawaii | House | D 47-4 | D 46-5 | D 45-5 | D 43-8 | D 45–6 | D 44-7 | D 41-10 | D 36-15 |
| Senate | D 24-1 | D 24-1 | D 25-0 | D 24-1 | D 23–2 | D 21-4 | D 20-5 | D 20-5 | |
| Idaho | House | R 58-12 | R 56-14 | R 59-11 | R 57-13 | R 52–18 | R 51-19 | R 57-13 | R 54-16 |
| Senate | R 28-6 | R 28-7 | R 29-6 | R 28–7 | R 28–7 | R 28-7 | R 28-7 | R 28-7 | |
| Illinois | House | D 72-45 | D 73-44 | D 67-51 | D 64-54 | D 70–48 | D 67-51 | D 65-53 | D 66-52 |
| Senate | D 41-18 | D 40-19 | D 37-22 | D 35-24 | D 37–22 | D 37-22 | D 31-27 1 Ind. | D 32-26, 1 Ind. | |
| Indiana | House | R 71-29 | R 66-33 | R 70-30 | R 59-40 | D 52–47, 1 Ind. | D 51-49 | R 52-48 | D 51-49 |
| Senate | R 38-11 | R 40-10 | R 41-9 | R 37-13 | R 33–17 | R 33-17 | R 33-17 | R 32-18 | |
| Iowa | House | R 60-40 | R 53-47 | R 59-41 | R 60-40 | D 56–44 | D 53-47 | R 51-49 | R 54-46 |
| Senate | R 31-18 | R 32-18 | R 28-20, 1 Ind. | D 26-24 | D 31–19 | D 30-20 | 25-25 | R 29-21 | |
| Kansas | House | R 85-39 | R 84-41 | R 85-40 | R 92-33 | R 77–48 | R 78-47 | R 83-42 | R 80-45 |
| Senate | R 29-11 | R 29-11 | R 31-9 | R 32-8 | R 31–9 | R 30-10 | R 30-10 | R 30-10 | |
| Kentucky | House | R 75-25 | R 62-38 | R 64-36 | D 58-42 | D 65–35 | D 64-36 | D 56-44 | D 64-36 |
| Senate | R 30-8 | R 28-10 | R 27-11 | R 22–15, 1 Ind. | R 22–15, 1 Ind. | R 21-16, 1 Ind. | R 21-16, 1 Ind. | R 22-16 | |
| Louisiana | House | R 68-33 | R 68-35, 2 Ind. | R 60-41, 3 Ind. | R 52-49, 4 Ind. | D 52–50, 3 Ind. | D 53-50, 2 Ind. | D 67-37, 1 Ind. | D 67-37, 1 Ind. |
| Senate | R 26-12 | R 27-12 | R 25-14 | R 20-19 | D 22–15, 2 Ind. | D 23-16 | D 24-15 | D 25-14 | |
| Maine | House | D 79-66, 5 Ind. | D 87-56, 6 Ind. | D 80-70 | R 78-72, 1 Ind. | D 95–55, 1 Ind. | D 90-59, 2 Ind. | 73-73, 4 Ind, 1 Green | D 82-66, 4 Ind, 1 Green |
| Senate | D 22-13 | D 21-14 | R 18-17 | R 20-14 | D 20–15 | D 18-17 | D 19-16 | D 18-17 | |
| Maryland | House | D 98-42 | D 99-42 | D 91-49 | D 98-43 | D 104–36, 1 Ind. | D 104-37 | D 98-43 | D 98-43 |
| Senate | D 32-15 | D 32-14 | D 33-14 | D 35-12 | D 33–14 | D 33-14 | D 33-14 | D 33-14 | |
| Massachusetts | House | D 129-29 | D 127-31, 1 Ind. | D 125-34, 1 Ind. | D 128-31 | D 143–16, 1 Ind. | D 141-19 | D 139-21 | D 136-23, 1 Ind. |
| Senate | D 36-3 | D 36-4 | D 33-6 | D 36-4 | D 35–5 | D 35-5 | D 34-6 | D 33-7 | |
| Michigan | House | R 56-52 | R 58-51 | R 63-47 | R 63-47 | D 67–43 | D 58-52 | R 58-49 | R 63-46 |
| Senate | R 22-16 | R 22-16 | R 27-11 | R 26-12 | R 21–17 | R 21-17 | R 22-16 | R 22-16 | |
| Minnesota | House | D 70-64 | D 75-55, 4 NP | R 76-57 | R 72-62 | DFL 87–47 | DFL 85-48, 1 Ind. | R 68-66 | R 81-53 |
| Senate | R 34-31, 2 Ind. | R 35-32 | R 34-33 | R 37-30 | DFL 46–21 | DFL 45-22 | DFL 37-29, 1 Ind. | D 35-31, 1 Ind. | |
| Mississippi | House | R 75-46 | R 73-45, 1 Ind. | R 73-47 | D 72-50 | D 74–48 | D 75-47 | D 75-47 | D 76-46 |
| Senate | R 36-15 | R 34-16 | R 31-19 | R 27-25 | D 27–25 | D 27-25 | D 28-24 | D 29-23 | |
| Missouri | House | R 112-49 | R 113-48 | R 112-45 | R 106-57 | R 89–74 | R 92-71 | R 96-66 | R 90-73 |
| Senate | R 24-10 | R 23-8 | R 24-9 | R 26-8 | R 23–11 | R 20-14 | R 23-11 | R 20-14 | |
| Montana | House | R 67-33 | R 58-42 | R 59-41 | R 68-32 | D 50–50 | R 50-49, 1 Const. | 50-50 | R 53-47 |
| Senate | R 31-19 | R 30-20 | R 32-18 | R 28-22 | R 27–23 | D 26-24 | D 26-24 | R 29-21 | |
| Nebraska | Unicameral and non–partisan Senate with 49 members | ||||||||
| Nevada | Assembly | D 26-16 | D 29-13 | D 27-14 | D 26-16 | D 28–14 | D 27-15 | D 26-16 | D 23-19 |
| Senate | D 11-9 | D 13-8 | D 11-9 | D 11-10 | D 12–9 | R 11-10 | R 12-9 | R 13-8 | |
| New Hampshire | House | R 207-188 | D 231-158, 1 Ind. | R 219-174, 3 Lib. | R 298-102 | D 225–175 | D 239-161 | R 247-152 | R 279-121 |
| Senate | R 14-10 | D 14-10 | R 14-10 | R 19-5 | D 14–10 | D 14-10 | R 16-8 | R 18-6 | |
| New Jersey | Assembly | D 46-34 | D 52-28 | D 52-28 | D 47–33 | D 47–33 | D 48-32 | D 49-31 | D 47-33 |
| Senate | D 24-16 | D 25-15 | D 24-16 | D 24–16 | D 23–17 | D 23-17 | D 22-18 | D 22-18 | |
| New Mexico | House | D 44-24 | D 45-24 | D 38-32 | D 37-33 | D 45–25 | D 42-28 | D 42-28 | D 43-27 |
| Senate | D 26-15, 1 Ind. | D 26-16 | D 26-16 | D 27-15 | D 27–15 | D 24-18 | D 24-18 | D 24-18 | |
| New York | Assembly | D 104-43, 1 Ind. | D 103-42, 1 Ind. | D 106-41, 1 IP | D 100-48, 2 Vac. | D 108–42 | D 108-42 | D 105-45 | D 102-47 |
| Senate | D 43-20 | D 40-20 | R 32-31 | R 32-30 | D 32–30 | R 32-30 | R 35-27 | R 37-24 | |
| North Carolina | House | R 69-51 | R 64-55 | R 75-45 | R 67-52 | D 68–52 | D 68-52 | D 63-57 | R 61-59 |
| Senate | R 28-22 | R 28-21 | R 35-15 | R 31-19 | D 30–20 | D 31-19 | D 29-21 | D 27-23 | |
| North Dakota | House | R 80-14 | R 79-15 | R 81-13 | R 69-25 | R 58–36 | R 61-33 | R 67-27 | R 66-28 |
| Senate | R 40-7 | R 37-10 | R 38-9 | R 35-12 | R 26–21 | R 26-21 | R 32-15 | R 31-16 | |
| Ohio | House | R 64-34 | R 61-38 | R 65-33 | R 59-40 | D 53–46 | R 53-46 | R 60-38, 1 Vac. | R 62-37 |
| Senate | R 25-8 | R 24-9 | R 23-9 | R 23-10 | R 21–12 | R 21-12 | R 22-11 | R 22-11 | |
| Oklahoma | House | R 82-18 | R 77-23 | R 71-28 | R 70-31 | R 62–39 | R 57-44 | R 57-44 | D 53-48 |
| Senate | R 39-9 | R 38-9 | R 39-7 | R 32-16 | R 26–22 | D 24-24 | D 25-22 | D 28-20 | |
| Oregon | House | D 37-22 | D 38-22 | D 35-24 | 30-30 | D 36–24 | D 31-29 | R 33-27 | R 35-25 |
| Senate | D 18-11, 1 Ind. | D 18-12 | D 17-13 | D 16-14 | D 18–12 | D 18-11, 1 Ind. | D 18-12 | 15-15 | |
| Pennsylvania | House | R 112-88 | R 109-93 | R 121-80 | R 112-91 | D 104–99 | D 102-101 | R 109-93 | R 109-94 |
| Senate | R 28-21, 1 Ind. | R 28-21, 1 Ind. | R 34-16 | R 30–20 | R 30–20 | R 29-21 | R 29-20 | R 29-21 | |
| Rhode Island | House | D 65-10 | D 66-8, 1 Ind. | D 64-11 | D 65-10 | D 69–6 | D 60-15 | D 60-15 | D 63-11, 1 Ind. |
| Senate | D 33-5 | D 33-5 | D 33-5 | D 29-8 1 Ind. | D 33–4, 1 Ind. | D 33-5 | D 33-5 | D 32-6 | |
| South Carolina | House | R 79-43 | R 78-45 | R 78-43 | R 75-48 1 Ind. | R 71–53 | R 73-51 | R 73-51 | R 73-51 |
| Senate | R 29-16 | R 27-19 | R 28-18 | R 27-19 | R 27–19 | R 26-20 | R 26-20 | R 25-21 | |
| South Dakota | House | R 62-8 | R 59-11 | R 59-10 | R 50-19 1 Ind. | R 46–24 | R 50-20 | R 51-19 | R 49-21 |
| Senate | R 32-3 | R 30-5 | R 29-6 | R 30-5 | R 20–14, 1 Ind. | R 20-15 | R 25-10 | R 26-9 | |
| Tennessee | House | R 73-26 | R 73-26 | R 74-25 | R 64-33 1 Ind. | R 50–48, 1 Ind. | D 53-46 | D 53-46 | D 54-45 |
| Senate | R 27-5 | R 28-5 | R 25-5 | R 19-13; 1 Vac. | R 19–14 | R 16-16, 1 Ind. | R 17-15 | D 18-15 | |
| Texas | House | R 85-64 | R 83-67 | R 95-55 | R 101-49 | R 76–74 | R 79-71 | R 86-64 | R 88-62 |
| Senate | R 18-13 | R 19-12 | R 20-11 | R 19–12 | R 19–12 | R 20-11 | R 19-12 | R 19-12 | |
| Utah | House | R 58-17 | R 59-16 | R 62-13 | R 58-17 | R 53–22 | R 55-20 | R 56-19 | R 56-19 |
| Senate | R 23-6 | R 23-6 | R 24-5 | R 22-7 | R 21–8 | R 21-8 | R 21-8 | R 22-7 | |
| Vermont | House | D 95-43, 7 Prog., 5 Ind. | D 95-44, 7 Prog, 5 Ind. | D 83-53, 7 Prog, 7 Ind. | D 95–48, 4 Prog, 3 Ind. | D 95–48, 5 Prog, 2 Ind. | D 93-49, 6 Prog. 2 Ind. | D 83-60, 6 Prog, 1 Ind. | R 73-71, 4 Prog, 2 Ind. |
| Senate | D 21-7, 2 Prog. | D 22-6, 2 Prog. | D 21-7, 2 Prog. | D 22–8, 1 Prog. | D 22–7, 1 Prog. | D 23-7 | D 21-9 | D 19-11 | |
| Virginia | House | R 52-48 | D 55-44 | R 51-49 | R 59–39, 2 Ind. | R 59–39, 2 Ind. | R 53-45, 2 Ind. | R 56-40, 3 Ind. | R 61-37, 2 Ind. |
| Senate | D 21-19 | D 21-19 | R 21-19 | D 22–18 | D 22–18 | D 21-19 | R 23-17 | R 24-16 | |
| Washington | House | D 57-41 | D 57-14 | D 50-48 | D 56-42 | D 64–34 | D 63-35 | D 56-42 | D 52-46 |
| Senate | D 29-20 | D 29-20 | D 25-24 | D 27-22 | D 31–18 | D 32-17 | D 26-23 | R 25-24 | |
| West Virginia | House | R 78-22 | R 58-41, 1 Ind. | R 62-35, 1 Ind. | D 65-35 | D 79–21 | D 72-28 | D 68-32 | D 69-31 |
| Senate | R 23-11 | R 20-14 | R 22-12 | D 28–6 | D 28–6 | D 23-11 | D 21-13 | D 24-10 | |
| Wisconsin | Assembly | R 61-38 | R 63-34 | R 63-35 | R 60-38 1 Ind. | D 52–46, 1 Ind. | R 52-47 | R 59-39 | R 59-40 |
| Senate | R 21-12 | R 18-13 | R 19-13 | R 19-14 | D 18–15 | D 18-15 | R 19-14 | R 18-15 | |
| Wyoming | House | R 51-7, 1 Lib., 1 Ind. | R 50-9, 1 Ind. | R 51-9 | R 50-10 | R 41–18 | R 43-17 | R 46-14 | R 45-15 |
| Senate | R 28-2 | R 27-3 | R 27-3 | R 26-4 | R 23–7 | R 23-7 | R 23-7 | R 20-10 | |
See also
References
- "Governors Roster 2013" (PDF). National Governors Association. 13 June 2013. Retrieved 20 October 2013.
- "Legislator Demographics: State-by-State". National Conference of State Legislatures. 2013. Archived from the original on 23 October 2013. Retrieved 20 October 2013.