| ZIP Codes: | 15 ZIP Codes (12 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 518 / 838 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:54:34 PM |
| Population: | 57,930 [See All] |
| FIPS: | 36057 |
| CBSA: | Amsterdam, NY |
| Land Area: | 561 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 42.9254, -74.4045 |
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57,930 residents live across 15 ZIPs covering 561 sq mi, served by 15 distinct USPS-recognized cities.
Population moved from 58,917 to 57,930 from 2014 to 2024 — a -1.7% change. 9 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 12166 (Sprakers, $94,821 median) and poorest ZIP 13339 (Fort Plain, $56,047) are 15.8 miles apart — a 1.7× income gap across local geography.
Median home values vary 3.2× across this county — from $73,000 in 13410 (Nelliston) to $230,800 in 12086 (Hagaman).
Density varies 22× across the county — from 39 people/sq mi in 12166 (Sprakers) to 864 in 12069 (Fort Hunter).
Educational attainment ranges from 13.6% bachelor's+ in 13410 (Nelliston) to 28.2% in 12166 (Sprakers) — the breadth of educational profiles across the area.
Within New York, this is the #44 most populous of 62 counties and ranks #35 for median household income .
Weighted by population, the typical household earns about $67,823 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.5% of adults age 25+ hold a bachelor's degree or higher (9,502 of 40,388 reporting).
12 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 12010 | Amsterdam | Standard | 27,750 | $63,696 | 128.2 | -4.1% |
| 13339 | Fort Plain | Standard | 6,010 | $56,047 | 109.2 | -11.4% |
| 13452 | Saint Johnsville | Standard | 4,792 | $60,327 | 77.2 | 3.2% |
| 13317 | Canajoharie | Standard | 3,888 | $72,500 | 48.5 | 2.7% |
| 12072 | Fultonville | Standard | 2,882 | $81,063 | 54.3 | 6.9% |
| 12068 | Fonda | Standard | 2,503 | $72,788 | 30.1 | -16.7% |
| 12070 | Fort Johnson | Standard | 2,011 | $86,989 | 13.0 | 25.1% |
| 12066 | Esperance | Standard | 1,863 | $78,571 | 31.6 | -12.1% |
| 13428 | Palatine Bridge | Standard | 1,689 | $76,295 | 18.7 | 10.4% |
| 12166 | Sprakers | Standard | 1,635 | $94,821 | 42.1 | 24.4% |
| 12086 | Hagaman | Standard | 1,587 | $78,155 | 6.3 | 5.6% |
| 13410 | Nelliston | PO Box | 508 | — | 0.6 | 99.2% |
| 12069 | Fort Hunter | PO Box | 425 | $90,179 | 0.5 | 189.1% |
| 12177 | Tribes Hill | PO Box | 387 | $92,444 | 0.6 | -35.1% |
| 12016 | Auriesville | Standard | — | — | 0.0 | — |