Big fan of election and demographic numbers since 2006
 

1966 United States Congressional Elections – Maryland

United States House of Representatives – District 1 – GOP Hold

Rogers C. B. Morton (R-inc) – 69,94071.39%

Harry C. Byrd (D) – 28,02528.61%

Total Votes – 97,965100.00%

United States House of Representatives – District 2 – DEM Hold

Clarence D. Long (D-inc) – 79,96369.27%

Paul T. McHenry, Jr. (R) – 35,47630.73%

Total Votes – 115,439100.00%

United States House of Representatives – District 3 – DEM Hold

Edward A. Garmatz (D-inc) – 56,980100.00%

United States House of Representatives – District 4 – DEM Hold

George Hyde Fallon (D-inc) – 57,57274.28%

G. Neilson Sigler (R) – 19,93025.72%

Total Votes – 77,502100.00%

United States House of Representatives – District 5 – DEM Hold

Hervey G. Machen (D-inc) – 55,67653.86%

Lawrence J. Hogan (R) – 47,70346.14%

Total Votes – 103,379100.00%

United States House of Representatives – District 6 – GOP Hold

Charles McC. Mathias, Jr. (R-inc) – 72,36070.94%

Walter G. Finch (D) – 29,63729.06%

Total Votes – 101,997100.00%

United States House of Representatives – District 7 – DEM Hold

Samuel N. Friedel (D-inc) – 61,95975.98%

Stephen L. Rosenstein (R) – 19,58424.02%

Total Votes – 81,543100.00%

United States House of Representatives – District 8 – GOP Gain

Gilbert Gude (R) – 71,05054.40%

Royce Hanson (D) – 59,56845.60%

Total Votes – 130,618100.00%

Source: Office of the Clerk of the United States House of Representatives