Reviewed and updated October 11, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 24, 2026 and October 11, 2026.
Coos County, New Hampshire, has about 31,000 residents (2024 Census Bureau estimate). The title to a parcel in Coos County is in the deed records of the Registry of Deeds and its taxable value is set by the town assessor; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, evictions and court cases, records requests and common questions.
Related guides: Coos County public records, Coos County arrest records, Coos County warrants, Coos County inmate search, Coos County criminal records, New Hampshire arrest records and New Hampshire inmate search.
Deeds, Mortgages and Liens in Coos County
Who owns a parcel in Coos County and what it sold for are in the deed records of the Registry of Deeds, with every lien or mortgage against the land.
SearchSystems opened and checked the Registry of Deeds' page at nhdeeds.org/coos-how-search (page title: Coos | Searching County Records), phone 603-788-2392, Monday - Friday, 8:00 AM - 4:00 PM, which answered when SearchSystems opened it on October 4, 2026.
Assessed Values and the Tax Roll in Coos County
The value each parcel is taxed on is set by the town assessor, not the county. New Hampshire towns, not counties, assess property and revalue at least every five years; the county Registry of Deeds records the deeds.
Evictions and Court Cases About Land in Coos County
Court cases about land from Coos County, evictions among them, are filed in the Circuit Court or the Coos County Superior Court.
The court records page SearchSystems verified for the county is at courts.nh.gov/your-visit/find-court/coos-superior-court, phone 855-212-1234.
Asking a County Office for a Record
Under the New Hampshire Right-to-Know Law a county office must answer a request within 5 business days, and it may charge the actual cost of copying. The county records request page SearchSystems verified is at cooscountynh.gov/government/about_us/request_for_proposals.php (page title: Coos county, NH).
Frequently Asked Questions
Who records deeds in Coos County?
The Registry of Deeds, at nhdeeds.org/coos-how-search, phone 603-788-2392. Deeds, mortgages and liens on land in Coos County are filed there.
Who sets the assessed value of a property in Coos County?
The assessor of each town.
Where are evictions from Coos County filed?
In the Circuit Court. The file is public unless the court seals it.
How is property assessed in New Hampshire?
New Hampshire towns, not counties, assess property and revalue at least every five years; the county Registry of Deeds records the deeds.
Is this the official Coos County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.