Guess it depends on your definition of runway (though Edwards works for me)
from: This site
Rogers has a surface of about 44 square miles and is the lakebed next to which the main Edwards complex has been developed. There are seven “drawn on” runways crisscrossing the surface of Rogers, with the longest 17/ 35 extending 7 1/2 miles.
From Wikipedia
Some of the longest runways include:
* Qamdo Bamda Airport (昌都邦達機場), Tibet, China (3033′N 9706′E) - 18,045 ft (5500 m) concrete, of which 13,779 ft (4200 m) currently meets 4D standard. Bamda's runway is also the highest in world, with altitude at 14,219 ft (4334 m). [1] [2]
* Shigatse Peace Airport (日喀則和平機場), Tibet, China (2921′N 8919′E) - 16,404 ft (5000 m) concrete, not in use, renovation starts in 2007 with projected completion in 2009. [3]
* Embraer Gaviao Peixoto, Brazil (2146′S 4824′W) - 16,295 ft (4967 m) asphalt [4]
* Upington, South Africa (2824′S 2116′E) - 16,076 ft (4900 m) asphalt [5]
* Denver International Airport, Colorado, USA (3952′N 10440′W) - 16,000 ft (4877 m) concrete [6]
* Edwards Air Force Base, California, USA (3454′N 11753′W) - 15,013 ft (4576 m) concrete [7] The famous dry lake bed "runways" are of considerable length (the longest is 39,000 feet by 900 feet), but have little improvement other than markings and are not comparable to other runways in this category. As a military installation, the runways are not normally available for use by air carrier or civilian aircraft.
* Vandenberg Air Force Base, California, USA (3444′N 12035′W) - 15,000 ft (4572 m) concrete [8] As a military installation, the runway is not normally available for use by air carrier or civilian aircraft.
* Kennedy Space Center, Shuttle Landing Field, Florida, USA (2837′N 8041′W) - 15,000 ft (4572 m) concrete [9] As a military installation, the runway is not normally available for use by air carrier or civilian aircraft.
* Kennedy International Airport, New York, New York, USA (4038′N 7347′W) - 14,572 ft (4441 m) concrete [10]
* Eielson Air Force Base, Alaska, USA (6440′N 1476′W) - 14,500 ft (4420 m) concrete [11] As a military installation, the runway is not normally available for use by air carrier or civilian aircraft.
* Rick Husband Amarillo International Airport, Texas, USA (3513′N 10142′W) - 13,502 ft (4115 m) concrete [12]
* Colorado Springs Municipal Airport, Colorado, USA - 13,500 ft concrete [13]
* O'Hare International Airport, Chicago, Illinois, USA (4159′N 8754′W) - 13,000 ft (4023 m) concrete [14]
Easter Island does not make the list, rolling in at 9524 Ft. I understand NASA paid for an extension so it could be used as an alternate shuttle landing site.