Buying Land in Herkimer County, New York

From the Mohawk Valley to Old Forge: one county, two regulatory zones

Herkimer County is unusually elongated, running from the Mohawk Valley in the south -- historic mill and industrial towns like Herkimer (the county seat), Ilion, Mohawk, and Little Falls -- a long way north into the heart of the Adirondacks. That length is why Herkimer is one of the larger counties in the state by land area, and it's also why the county contains two genuinely different land-use worlds. The southern Mohawk Valley towns are outside the Adirondack Park's Blue Line entirely, governed the standard New York way: local town zoning, county health department septic review, no state land-use agency involved.

The county's northern reach is a different story. The Town of Webb -- which contains Old Forge, Big Moose, and Thendara, some of the best-known destinations in the central Adirondacks -- sits well inside the Blue Line, along with other northern Herkimer County towns whose full roster this page has not independently confirmed against a live, parcel-level map. What matters for a prospective buyer is the same lesson as Franklin and Fulton Counties elsewhere in this batch: don't assume a Herkimer County parcel's regulatory status based on the county name or even the general region. A camp lot near Old Forge is an Adirondack Park Agency matter; a residential lot near Herkimer village is not.

What changes inside the Park

For any parcel confirmed to be inside the Blue Line, the APA's land use area classification system governs allowed density and use on top of, and sometimes instead of, the local town's own zoning, and a septic system there needs both a county health department Appendix 75-A review and APA sign-off. None of that applies south of the line, where a Mohawk Valley parcel works through ordinary local channels alone. One confirmed wrinkle worth knowing up front: the Town of Webb, which contains Old Forge, runs its own APA-approved local zoning and subdivision program rather than routing most project approvals through the state agency directly -- a genuinely different process from a Blue Line town without one, covered in full on our dedicated Herkimer County zoning page.

County government

Herkimer County is governed by a County Legislature, which handles the county's budget, policy, and countywide administrative functions. As with other counties in this batch, county-level land-use involvement is largely limited to planning coordination and septic permitting -- final zoning authority for any parcel outside the Adirondack Park rests with the individual town.