Has any NFL division had only teams with over 500 record?

Since 1967, when the NFL went to a multiple division format (as opposed to only two divisions) there has never been a division that has had all its member teams have a winning percentage greater than .500.

Between 1933-1966, when the NFL had only two divisions, East and West, this mathematical oddity happened only once. In 1935 the NFL West had all its teams achieve a better than .500 win percent. Please note prior to 1950 ties did not count in NFL win percent calculations. The NFL West records in 1935 were:

1935 NFL West

Detroit Lions 7-3-2 .700

Green Bay Packers 8-4 .667

Chicago Bears 6-4-2 .600

Chicago Cardinals 6-4-2 .600

Prior to 1933 the NFL had only one division and all the teams in the league were part of it.

While no modern era division has not had all teams achieve a greater than .500 win percent, there have been five instances where all teams in a division have been .500 or better. These were:

2007 AFC South

Indianapolis Colts 13-3 .813

Jacksonville Jaguars 11-5 .688

Tennessee Titans 10-6 .625

Houston Texans 8-8 .500

2007 NFC East

Dallas Cowboys 13-3 .813

New York Giants 10-6 .625

Washington Redskins 9-7 .563

Philadelphia Eagles 8-8 .500

2002 AFC East

New York Jets 9-7 .563

Miami Dolphins 9-7 .563

New England Patriots 9-7 .563

Buffalo Bills 8-8 .500

2002 AFC West

Oakland Raiders 11-5 .688

Denver Broncos 9-7 .563

Kansas City Chiefs 8-8 .500

San Diego Chargers 8-8 .500

1995 AFC West

Kansas City Chiefs 13-3 .813

San Diego Chargers 9-7 .563

Oakland Raiders 8-8 .500

Denver Broncos 8-8 .500

Seattle Seahawks 8-8 .500