Lazy Mountain is a census-designated place (CDP) in Matanuska-Susitna Borough, Alaska, United States.

The southern boundary of the CDP starts at the Old Glenn Highway where it meets E. Smith Rd, extends east along the Smith Road extension to Harmony Avenue, then south one block to Purser Place and then east again approximately 1/2 mile along an imaginary line to McRoberts Creek.

McRoberts Creek forms the southeast boundary of the CDP up to its headwaters and to the top of the ridge south of Matanuska Peak.

[4] Lazy Mountain has a continental subarctic climate (Köppen Dfc) with cold, snowy winters and mild summers.

As a Census-Designated Place, the Lazy Mountain Area is not a traditional village or town.

The Lazy Mountain Recreation Area is a 360-acre site which has hiking, skiing, and equestrian trails.

[9] [10] The Lazy Mountain area is only accessible by road along the Old Glenn Highway, formerly Alaska Route 1.

The Old Glenn Highway is classified as a major collector South of Clark-Wolverine Road, and as a minor arterial from that point north into Palmer.

Effective May 29, 2014, all airports in the Lazy Mountain area use a single common traffic advisory frequency (CTAF), 123.60 MHz.