Hudson Valley
Sullivan County is home to 78,624 people in the Hudson Valley region. Historic estates, farm-to-table towns, and Hudson River art and mountains.
How Sullivan County works
County government does some local jobs, but not all of them. Cities, towns, villages, schools, and courts each keep their own work.
A parcel's value usually comes from the city or town assessor, while the county property office backs that up with tax maps and parcel details. Deeds and mortgages live with the County Clerk — and the tax bill itself may be collected by a different office again.
Most building permits in Sullivan County start with the city, town, or village. County public health may join the job for a well, septic system, food business, or another health rule.
County offices are often the right place for health programs, benefits, family services, voting help, and emergency alerts. The office may be in another town, but it serves the whole county.
Ordinary example
The city, town, or village handles the building and zoning start. County public health may handle the septic work. The County Clerk keeps the deed, and the school district controls its own tax and enrollment line. The county name alone does not choose every office.
Property tax in Sullivan County
The FY2025 source rows combine county + town/city + school on a full-value basis. On a $300,000 home, that is roughly $4,338–$7,388 a year before STAR, exemptions, village taxes, and special-district charges. This is not a county minimum or maximum bill; it is a broad comparison across different municipalities and school districts.
Who handles this here
New York divides everyday work among municipal, county, state, court, and City offices. This is the routing map. Confirm current forms, fees, hours, and deadlines on the official office page before acting.
Open the official Sullivan County website ->County service directory
These links open the responsible county department, not a general homepage. A city, town, court, school district, or state agency may still own the final step.
County Clerk and land records
Sullivan County ClerkDeeds, mortgages, recorded documents, copies, and the county's official records handoff.
Real property and tax maps
Sullivan County Real Property Tax Services AgencyCounty tax maps, parcel resources, and assessment support. Check whether the county or local assessor owns the roll.
Elections and voter help
Sullivan County Board of ElectionsRegistration, polling places, absentee or early-mail voting, and local election information.
Public health
Sullivan County Public HealthLocal public-health programs, environmental-health contacts, and current notices.
Social services
Sullivan County Department of Social ServicesCounty-administered benefits, family services, adult services, and help finding the right program.
Emergency management and alerts
Sullivan County Office of Emergency Management/Homeland SecurityPreparedness, local emergency information, and the county's route to public alerts.
Official county pages reviewed 2026-07-13. Confirm current forms, fees, hours, and deadlines with the office before acting.
Probate, administration, and small estates
Sullivan County Surrogate's CourtNew York Courts routes estate proceedings through the Surrogate's Court in the county of the person's domicile.
Driver and vehicle counter service
The serving DMV officeOffice ownership and available transactions vary. Use DMV's location finder before traveling, and check whether an appointment is expected.
Birth, death, marriage, and divorce records
The office that holds that event recordThe right owner depends on the event, date, and whether it happened in New York City. The records guide sorts those lanes first.
Confirm the current service arrangement on the responsible official page.
Local stories & notes
Short, sourced notes tied to this county, with the local color and the things worth knowing before you make a plan.
History & Culture
Highland's Delaware River edge carries hamlet life, the Minisink Ford Battleground, the Roebling Bridge, and a Revolutionary War memory close together.
History & Culture
Liberty's official history traces a Catskills arc from hemlock woods and tanneries to hotels, health institutions, and named hamlets.
Cars & Driving
Sullivan County DMV users should use the county appointment route, know the nine local stops, and keep road-test questions with NYS DMV.
History & Culture
Monticello's Broadway core gives the village a county-seat feel built from old storefronts, public errands, and preservation work.
History & Culture
Bethel's identity still turns on how a Catskills field became a national music-history address.
History & Culture
Fallsburg's Route 42 marker keeps Borscht Belt resort memory attached to South Fallsburg's everyday landscape.
Money & Taxes
Sullivan county and town back-tax checks start with the Treasurer lookup, but payment still has to run through the office.
History & Culture
Thompson's local identity links Munsee Lenape presence, Dutch Pond settlement, Monticello, and the Borscht Belt marker work.
History & Culture
Cochecton's town history layers Delaware River settlement, old land disputes, shad and fur trade, a turnpike, rafting, tanneries, and railroad memory.
Official starting points
Start with the county website for departments and local services. Use ORPTS for assessor, equalization-rate, and municipal profile data. Exact forms and deadlines still come from the office that owns the work.
Use this carefully: The county website comes from New York State's locality directory. Follow any redirect and confirm the current department, form, deadline, and parcel-specific details before acting.
Tax rates: NYS Dept of Taxation & Finance (ORPTS), Real Property Tax Rates and Levy Data by Municipality, data.ny.gov dataset iq85-sdzs. (FY2025). Population: U.S. Census 2020.
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