| ZIP Codes: | 17 ZIP Codes (12 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Codes: | 315 / 680 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:15 PM |
| Population: | 25,250 [See All] |
| FIPS: | 36049 |
| Land Area: | 1,311 sq mi |
| Water Area: | 30 sq mi |
| Coordinates: | 43.7425, -75.4300 |
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25,250 residents live across 17 ZIPs covering 1,311 sq mi, served by 17 distinct USPS-recognized cities.
Population moved from 25,508 to 25,250 from 2014 to 2024 — a -1.0% change. 7 ZIPs gained residents, 8 lost.
The county's wealthiest ZIP 13473 (Turin, $103,598 median) and poorest ZIP 13345 (Greig, $48,750) are 7.0 miles apart — a 2.1× income gap across local geography.
Median home values vary 3.6× across this county — from $92,600 in 13404 (Martinsburg) to $331,300 in 13312 (Brantingham).
Density varies 305× across the county — from 4 people/sq mi in 13312 (Brantingham) to 1,083 in 13404 (Martinsburg).
Educational attainment ranges from 7.2% bachelor's+ in 13305 (Beaver Falls) to 40.3% in 13312 (Brantingham) — the breadth of educational profiles across the area.
Within New York, this is the #60 most populous of 62 counties and ranks #52 for median household income .
Weighted by population, the typical household earns about $67,246 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.5% of adults age 25+ hold a bachelor's degree or higher (3,430 of 17,612 reporting).
12 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 13367 | Lowville | Standard | 8,601 | $67,873 | 460.6 | 0.4% |
| 13620 | Castorland | Standard | 2,298 | $70,087 | 37.3 | 9.4% |
| 13648 | Harrisville | Standard | 2,236 | $60,735 | 175.6 | 6.8% |
| 13626 | Copenhagen | Standard | 2,202 | $64,495 | 91.4 | 2.6% |
| 13327 | Croghan | Standard | 2,009 | $66,875 | 148.7 | 1.8% |
| 13433 | Port Leyden | Standard | 1,686 | $50,806 | 58.7 | -15.7% |
| 13343 | Glenfield | Standard | 1,606 | $70,478 | 79.5 | -12.2% |
| 13368 | Lyons Falls | Standard | 1,129 | $62,159 | 21.3 | -13.6% |
| 13473 | Turin | Standard | 982 | $103,598 | 41.8 | 53.7% |
| 13325 | Constableville | Standard | 918 | $58,750 | 92.1 | -2.5% |
| 13489 | West Leyden | Standard | 576 | $89,271 | 31.4 | -3.7% |
| 13305 | Beaver Falls | PO Box | 403 | — | 1.9 | 4.1% |
| 13312 | Brantingham | PO Box | 228 | $72,266 | 64.2 | -44.1% |
| 13345 | Greig | Standard | 217 | $48,750 | 6.0 | -22.5% |
| 13404 | Martinsburg | PO Box | 159 | — | 0.1 | -32.9% |
| 13631 | Denmark | PO Box | — | — | 0.0 | — |
| 13627 | Deer River | PO Box | — | — | 0.0 | — |