most ancestral parts of each states for either party

[freepcrusher]

AL
most ancestrally republican - far southern part
most ancestrally democrat - basically the 7th district

AZ
most ancestrally republican - much of the area in the current 3rd district has been represented by republicans for 60 years

most ancestrally democrat - most of the Pima portion of AZ 7. That area has been democrat represented since statehood

AR
most ancestrally republican - NW corner (duh)
most ancestrally democrat - southern part of state

CA
most ancestrally republican - southern part of orange county has had republican representation since 1943
most ancestrally democrat - parts of LA have been represented by democrats continuously since the great depression

CO
most ancestrally republican - colorado springs area has been under republican control since at least 1973, possibly since before then
most ancestrally democrat - Denver has been democrat since the early 70s

CT
most ancestrally democrat - Hartford has been represented by a democrat since the end of the 1950s
most ancestrally republican - all dem delegation

FL
most ancestrally democrat - pretty much any part of the state with a democrat rep has been represented by a democrat since reconstruction

most ancestrally republican - parts of St Petersburg has been republican represented since the mid 1950s

GA
most ancestrally democrat - much of Sanford Bishop's district has been democrat since reconstruction
most ancestrally republican - some of the area in GA 3 has been republican represented since 1979

IL
most ancestrally democrat - parts of chicago has been represented by a democrat since the great depression. Its possible some of the area in IL 12 has had democrat representation since the time of Stephen Douglas

most ancestrally republican - parts of DuPage county has probably had a republican rep since the party was founded

IN
most ancestrally democrat - northwestern corner has been democrat represented since the great depression
most ancestrally republican - some of the area in the 4th district has been represented by a republican since 1951

IA
most ancestrally democrat - Monroe, Lucas, Marion, Mahaska, Keokuk, Jasper and Poweshiek counties have been represented by a democrat since the 1997
most ancestrally republican - Hancock county has been represented by a republican since the 1940s, maybe earlier than that

[freepcrusher]

KS
most ancestrally republican - some of the counties in the 1st district, that used to be in the 6th; have been republican since 1935.

KY
most ancestrally democrat - the 6th district
most ancestrally republican - some of the area around Jackson County has been republican since 1937

LA
most ancestrally democrat - 2nd district
most ancestrally republican - area around Metairie has been republican since 1977

MD
most ancestrally democrat - parts of Baltimore have been democrat represented since at least 1953, maybe earlier
most ancestrally republican - NW part of state

MA
most ancestrally democrat - parts of Boston have been democrat represented since the 1870s

anyone know any others?

[Dgov]

TN:  (North)Eastern TN hasn't had a Democratic Representative since Reconstruction I think.

Also, the Current 8th has been represented by Democrats basically from 1897 to 2010 (I think).  Though the "8th: seat has changed as TN dropped from 13 seats to 8, i think NW Tennessee has been solidly Dem for that long.

[freepcrusher]

I think most of Davidson County has been democrat represented since reconstruction as well. Memphis believe it or not had a republican representative in the early 70s.

[Kevinstat]

ME
most ancestrally democrat - the parts of Kennebec (Wayne, Monmouth, China, Albion and Unity Township) and Waldo (Burnham, Troy, Unity, Freedom, Palermo, Liberty, Montville, Morrill, (the town of) Waldo, Searsmont, Lincolnville, Northport and Isleboro) counties that moved from the first district to the second district in the 1993 redistricting (all of those municipalities in Kennebec County except for Wayne moved back to the first district in 2003, not that that matters here) have been represented by a Democrat since January 1987.  Ironically, a lot of these towns are fairly Republican.
least ancestrally democrat - the 1994 through 2002 ME-01 (represented by a Republican as recently as January 1997).

[freepcrusher]

Michigan
Most ancestrally democrat - parts of Detroit and dearborn have been democrat controlled for almost 80 years
most ancestrally republican - areas on the west coast have been republican since 1967

Minnesota
most ancestrally democrat - St. Paul has had a democrat rep since the end of the 1940s
most ancestrally republican - western suburbs in Hennepin County have had a republican rep since 1961

Mississippi
most ancestrally democrat - Mississippi Delta area
most ancestrally republican - area in the 1st district has been republican since the 1990s

Missouri
most ancestrally democrat - the city of St Louis has been democrat for 80 years, maybe longer
most ancestrally republican - southwest corner of the state has had a republican rep since 1961

Nevada
most ancestrally democrat -  inner city Las Vegas has had a democrat rep since 1999
most ancestrally republican - much of upstate Nevada has had a democrat rep since 1983

New Jersey
most ancestrally democrat - Newark has had a democrat rep since the end of the 1940s
most ancestrally republican - probably the NW part of the state

New Mexico
most ancestrally democrat - 3rd district
most ancestrally republican - 2nd district

New York
most ancestrally democrat - parts of the boroughs have had a democrat rep since the turn of the century, possibly earlier
most ancestrally republican - aren't there parts of the state that have had a republican representative since the 1860s

North Carolina
most ancestrally democrat - certain black areas in the NE corner of the state
most ancestrally republican - suburban Charlotte has been GOP controlled for 60 years

Ohio
most ancestrally democrat - parts of Cleveland have had a democrat rep since the 1920s
most ancestrally republican - much of the western part of the state has been republican since the end of the great depression

Oklahoma
most ancestrally republican - most of Oklahoma city has had a republican rep since the 1970s
most ancestrally democrat - eastern Oklahoma, with the exception of the Coburn years, has had a democrat rep since statehood

Oregon
most ancestrally republican - eastern part of the state has had a republican rep since the early 80s
most ancestrally democrat - Portland has had a democrat rep since the mid 1950s

[Napoleon]

Lots of CT-04 and CT-05 are ancestrally Republican even if Democrats just recently won there. Check out the suburbs along the Long Island Sound, historically. The old 6th district, which included a lot of Litchfield County also.  Once upon a time we elected Prescott Bush and Lowell Weicker to the US Senate.

[bgwah]

Washington

Democratic: Coastal areas (Pacific and Grays Harbor counties). Jefferson and Cowlitz also worth mentioning.

Republican: South Central-Southeastern Washington (Yakima, Garfield, Columbia, Whitman, Adams, Walla Walla). Franklin and Asotin are notable exceptions. San Juan would have easily won this until the 80s/90s, but it swung hard to the Democrats like Vermont. Lewis is the only Western county worth mentioning, I think.

[phk]

California

Ancestral Republican: Far North, Far East, Orange County

Ancestral Democratic: Alameda or Sacramento interestingly

[freepcrusher]

Pennsylvania
most ancestrally republican - dutch country
most ancestrally democrat - parts of philadelphia and pittsburgh have been represented by a democrat since the depression

South Carolina
most ancestrally republican - SE Corner of the state has been republican for 45 years
most ancestrally democrat - much of the area in Clyburn's district has always been democratic

Texas

most ancestrally democrat - much of the counties on the rio grande river as well as inner city houston have had a democrat representative since reconstruction.

most ancestrally republican - cypress, jersey village, memorial villages have been republican since 1967

Utah
most republican - 1st district has been republican since 1981
most democrat - 2nd district

Virginia
most republican - Cantor's district has been republican held for 40 years
most democrat - some areas on the tidewater have probably been democrat since reconstruction

Washington
most democrat - Norm Dicks' distric has been democrat since 1965
most republican - 4th district area

West Virginia
most democrat - southern part of the state has had a democratic rep since the end of the 1950s
most republican - 2nd district

Wisconsin
most democrat - 4th district. That part of Milwaukee has had a democratic rep since 1949
most republican - areas surrounding Milwaukee has had a republican representative since the 1960s

[PulaskiSkywayDriver]

New Jersey:
Democratic: Clearly Hudson (Especially Jersey City)
Republican: Probably NW. Sussex has not been in a Democratic district for anything since 1980, and that was a Watergate fluke. Parts of Hunterdon/Somerset may be even more so. Ocean is interesting because it only went Democrat for President in 64 and 96 but had Democratic state legislators until 1991.