Office Space for Lease in New Haven County, CT
New Haven County covers 27 towns from the shoreline at New Haven up the Naugatuck Valley to Waterbury, served by I-95, I-91, I-84 and Route 8.
Office sales in New Haven County, last 12 months
About New Haven County
With 864,835 residents at the 2020 Census, New Haven County is Connecticut's third most populous county. Its two largest cities anchor two different markets: New Haven, with Yale, Yale New Haven Health and a growing life-science sector, and Waterbury, the center of the Naugatuck Valley's manufacturing towns. Retail and industrial property follows US 1 and I-95 through Milford, West Haven, Orange and Branford, and I-91 through North Haven, Wallingford and Meriden, home to large distribution centers.
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) | 864,835 |
|---|---|
| Towns | 27 |
| Land area | About 604 square miles |
| Largest towns | New Haven, Waterbury, Hamden, Meriden, West Haven |
| Jobs located in the county | 379,617 |
| Active businesses | 78,914 |
| Highways | I-95, I-91, I-84, I-691, Route 8, Route 15, Route 34 |
| Rail | Amtrak, Metro-North New Haven Line and Waterbury Branch, CTrail Hartford Line, Shore Line East |
| Airport | Tweed New Haven (East Haven and New Haven) |
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 New Haven County, CT?
As of October 26, 2026, Conn-Comp Listings has 9 current office space listings for lease in New Haven County, CT. Listings are added by Connecticut brokers and updated daily.
What are asking rents for office space in New Haven County, CT?
Asking rents from $7.66 / SF to $27.00 / SF. Based on current listings that show a rent.
Which towns in New Haven County have the most office space for lease?
Right now: Milford (4), Hamden (2), Branford (1).
Where can I find verified lease rents in New Haven County?
Conn-Comp Sales Data has verified Connecticut sales and leases. Subscribers sign in with Sales Data Login.