The following ratings are final, barring exceptional and unanticipated late–breaking news.
Seats are ordered by the likelihood that the party controlling them will change in the 2010 election. This listing should (especially for Democratic seats at risk) be viewed as more of a rough guide than a strict ordering, with a greater separation in ranking being far more significant than a slight one.
218 seats are required for a majority, and no seat is likely to be gained by any third party or independent.
Republican–Held Seats
- DE-AL (vice Castle)
- LA-02 (Cao)
- IL-10 (vice Kirk)
- HI-01 (Djou)
- FL-25 (vice Diaz-Balart)
- CA-03 (Lungren)
- WA-08 (Reichert)
- AZ-03 (vice Shadegg)
- CA-45 (Bono Mack)
- PA-06 (Gerlach)
- PA-15 (Dent)
- FL-12 (vice Putnam)
- KS-04 (vice Tiahrt)
- NE-02 (Terry)
- MN-06 (Bachmann)
- OH-12 (Tiberi)
- CA-44 (Calvert)
- AL-05 (vice Griffith)
- MI-03 (Ehlers)
- SC-02 (Wilson)
159 Republican–held seats, including the IN-03 vacancy, are not considered competitive at this time.
Democratic–Held Seats
- NY-29 (vacant, vice Massa)
- TN-06 (vice Gordon)
- LA-03 (vice Melancon)
- AR-02 (vice Snyder)
- IN-08 (vice Ellsworth)
- OH-01 (Driehaus)
- KS-03 (vice Moore)
- FL-24 (Kosmas)
- TN-08 (vice Tanner)
- PA-03 (Dahlkemper)
- TX-17 (Edwards)
- CO-04 (Markey)
- OH-15 (Kilroy)
- IL-11 (Halvorson)
- FL-08 (Grayson)
- WI-08 (Kagen)
- VA-02 (Nye)
- NH-01 (Shea-Porter)
- NM-02 (Teague)
- MS-01 (Childers)
- FL-02 (Boyd)
- NV-03 (Titus)
- AZ-01 (Kirkpatrick)
- MD-01 (Kratovil)
- VA-05 (Perriello)
- WI-07 (vice Obey)
- NY-20 (Murphy)
- GA-08 (Marshall)
- PA-08 (Murphy, Patrick)
- WA-03 (vice Baird)
- ND-AL (Pomeroy)
- IL-17 (Hare)
- AZ-05 (Mitchell)
- TN-04 (Davis)
- MI-01 (vice Stupak)
- PA-11 (Kanjorski)
- IN-09 (Hill)
- TX-23 (Rodriguez)
- PA-10 (Carney)
- FL-22 (Klein)
- WV-01 (vice Mollohan)
- PA-07 (vice Sestak)
- NC-08 (Kissell)
- SC-05 (Spratt)
- NJ-03 (Adler)
- CO-03 (Salazar)
- OH-18 (Space)
- OH-16 (Boccieri)
- IL-14 (Foster)
- NY-19 (Hall)
- NY-23 (Owens)
- AL-02 (Bright)
- MS-04 (Taylor)
- GA-02 (Bishop)
- MO-04 (Skelton)
- SD-AL (Herseth Sandlin)
- AR-01 (vice Berry)
- NM-01 (Heinrich)
- CA-20 (Costa)
- ID-01 (Minnick)
- MI-07 (Schauer)
- MA-10 (vice Delahunt)
- AZ-08 (Giffords)
- CA-11 (McNerney)
- AZ-07 (Grijalva)
- PA-12 (Critz)
- OR-05 (Schrader)
- VA-11 (Connolly)
- KY-06 (Chandler)
- OH-06 (Wilson)
- NY-24 (Arcuri)
- PA-04 (Altmire)
- CA-18 (Cardoza)
- ME-01 (Pingree)
- IA-02 (Loebsack)
- NH-02 (vice Hodes)
- IA-03 (Boswell)
- NC-07 (McIntyre)
- CT-05 (Murphy)
- MI-09 (Peters)
- NY-01 (Bishop)
- CT-04 (Himes)
- MN-08 (Oberstar)
- CA-47 (Sanchez, Loretta)
- OH-13 (Sutton)
- WA-02 (Larsen)
- VA-09 (Boucher)
- IN-02 (Donnelly)
- MN-01 (Walz)
- NJ-12 (Holt)
- IA-01 (Braley)
- KY-03 (Yarmuth)
- NY-13 (McMahon)
- WI-03 (Kind)
- PA-17 (Holden)
- NY-25 (Maffei)
- CO-07 (Perlmutter)
- NC-11 (Shuler)
- TX-27 (Ortiz)
- NC-02 (Etheridge)
- WV-03 (Rahall)
- ME-02 (Michaud)
- UT-02 (Matheson)
- NY-22 (Hinchey)
- IL-08 (Bean)
- OR-01 (Wu)
- MO-03 (Carnahan)
- RI-01 (vice Kennedy)
- GA-12 (Barrow)
- AR-04 (Ross)
- WA-09 (Smith)
- NM-03 (Lujan)
- NY-04 (McCarthy)
- MA-05 (Tsongas)
- MA-04 (Frank)
- MI-15 (Dingell)
- OR-04 (DeFazio)
- MA-06 (Tierney
- WA-06 (Dicks)
- OH-10 (Kucinich)
- TN-05 (Cooper)
- NC-04 (Price)
- MN-07 (Peterson)
- TX-25 (Doggett)
- MS-02 (Thompson)
131 Democratic–held seats are not considered competitive at this time.
For all posts related to ratings changes, see the Dynamic Race Ratings tag.