Office Space for Lease in Windham County, CT
Windham County is Connecticut's northeast corner: 15 towns along I-395, between Massachusetts and Rhode Island, known as the Quiet Corner.
Office sales in Connecticut, last 12 months
About Windham County
With 116,418 residents at the 2020 Census, Windham County is the state's least populous county. Commercial and industrial property is concentrated in Willimantic (in the town of Windham), home to Eastern Connecticut State University, and in the I-395 towns of Killingly, Plainfield and Putnam, which have industrial and distribution employers and older mill buildings along the Quinebaug River.
Connecticut has had no county government since 1960, so the county is a geographic area only. Zoning, permits and property taxes are set by each town.
| Population (2020 Census) | 116,418 |
|---|---|
| Towns | 15 |
| Land area | About 513 square miles |
| Largest towns | Windham, Killingly, Plainfield, Thompson, Putnam |
| Jobs located in the county | 37,524 |
| Active businesses | 6,621 |
| Highways | I-395, US 6, US 44, Route 12, Route 32, Route 169 |
| Rail | None |
| Airport | T.F. Green (Providence) and Bradley International are the nearest commercial airports |
Sources: U.S. Census Bureau, 2020 Census; AdvanceCT and CTData Collaborative, 2026 Town Profiles (jobs and businesses added up across the county's towns)
Questions and answers
How many office space listings are for lease in Windham County, CT?
As of October 26, 2026, Conn-Comp Listings has 3 current office space listings for lease in Windham County, CT. Listings are added by Connecticut brokers and updated daily.
What are asking rents for office space in Windham County, CT?
Asking rents from $14.00 / SF to $18.00 / SF. Based on current listings that show a rent.
Which towns in Windham County have the most office space for lease?
Right now: Windham (3).
Where can I find verified lease rents in Windham County?
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