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Boulder County, CO undeveloped land for sale

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Explore land for sale in Boulder County, CO for more listings.

Buying undeveloped land in Boulder County

Find undeveloped land for sale in Boulder County, CO including small empty lots, vacant land for construction, large unimproved acreage, and other raw land plots.

There are currently 218 undeveloped properties for sale in Boulder County, with an average listing price of $871,467. The average cost to buy is $135,266 per acre. Search land for sale in Colorado to view every property in the state.

Undeveloped land for sale in Boulder County

Acreage for sale
1,405 acres
Average listing age
113 days
Average list price
$871,467
Median list price
$399,950
Average property size
6.5 acres
  • REcolorado

    Based on information submitted to the MLS GRID as of May 22, 2026 2:00 pm MT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. View more

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