Dark Green are the primary Southern Tier counties
The Southern Tier is the name of the counties along the bottom edge of New York State, West of the Catskills.
The counties (and major cities and towns) generally included in the Southern Tier are:
- Allegany County — Wellsville, Belmont & Alfred
- Broome County — Binghamton, Endicott, Johnson City & Vestal
- Cattaraugus County — Olean, Salamanca, Ellicottville, Randolph & Little Valley
- Chemung County — Elmira & Horseheads
- Delaware County — Village of Delhi & Village of Sidney & Village of Hancock
- Steuben County — Corning, Bath & Hornell
- Tioga County — Owego, Barton & Waverly
Occasionally but less frequently included in the "Southern Tier" designation are Schuyler County, Chautauqua County (primarily the "South County" region in the Conewango Creek watershed; other areas are part of the Niagara Frontier), Yates County, Cortland County, Tompkins County, and (far more rarely) Schoharie County, Chenango County, and Otsego County (the last three of these, along with Broome County, are also commonly considered part of the "Central Leatherstocking Region").
The Court Street Bridge over Interstate 86 in Owego in the Southern Tier