Exhibit 11.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

For the Quarter and Nine-Months Ended September 30, 2001 and 2000
(Dollars in Thousands, Except Per Share Data)

			Three-Months Ended				Nine-Months Ended
			September 30,				September 30,
			2001		2000		2001		2000
Net earnings			$	45,917	$	42,051	$	80,267	$	91,503
Weighted average number of common shares outstanding:
	Basic			48,337,678		46,763,155		47,661,493		46,746,598
	Effect of dilutive securities			233,303		199,046		227,258		217,683
	Diluted			48,570,981		46,962,201		47,888,751		46,964,281
Net earnings per common share
		- Basic	$	0.95	$	0.90	$	1.68	$	1.96
		- Diluted	$	0.95	$	0.90	$	1.68	$	1.95