Exhibit 11.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

For the Quarter and Nine Months Ended September 30, 2002 and 2001
(Dollars in Thousands, Except Per Share Data)

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2002		2001		2002		2001
Net earnings	$	38,925	$	45,917	$	81,738	$	80,267
Weighted average number of common shares outstanding:
Basic		48,820,079		48,337,678		48,692,654		47,661,493
Effect of dilutive securities		135,180		233,303		149,905		227,258
Diluted		48,955,259		48,570,981		48,842,559		47,888,751
Net earnings per common share:
- Basic	$	0.80	$	0.95	$	1.68	$	1.68
- Diluted	$	0.80	$	0.95	$	1.67	$	1.68