ZIP 13045 falls in Cortland County, New York, where we hold 8,441 parcels measured as septic county-wide and 7,813 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 13045.
ZCTA 13045 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Cortland County, New York | 85% | 2 | 8,441 | 7,813 |
| Cayuga County, New York | 9% | — | 15,227 | 13,460 |
| Tompkins County, New York | 6% | — | 12,670 | 11,473 |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We hold 8,441 parcels measured as septic for Cortland County, New York as a whole, not broken out by ZIP.
ZIP 13045 spans 3 counties: Cortland County, New York, Cayuga County, New York, Tompkins County, New York.