| ZIP Codes: | 9 ZIP Codes (8 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 329 / 845 / 914 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:16 PM |
| Population: | 99,343 [See All] |
| FIPS: | 36079 |
| CBSA: | New York-Newark-Jersey City, NY-NJ |
| Land Area: | 239 sq mi |
| Water Area: | 14 sq mi |
| Coordinates: | 41.4064, -73.7664 |
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99,343 residents live across 9 ZIPs covering 239 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 100,478 to 99,343 from 2014 to 2024 — a -1.1% change. 5 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 10524 (Garrison, $146,250 median) and poorest ZIP 12563 (Patterson, $98,415) are 20.4 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.6× across this county — from $410,000 in 10537 (Lake Peekskill) to $639,200 in 10516 (Cold Spring).
Density varies 12× across the county — from 161 people/sq mi in 10516 (Cold Spring) to 1,979 in 10537 (Lake Peekskill).
Educational attainment ranges from 31.4% bachelor's+ in 12563 (Patterson) to 63.0% in 10516 (Cold Spring) — the breadth of educational profiles across the area.
Within New York, this is the #29 most populous of 62 counties and ranks #5 for median household income .
On the national stage, Putnam County is ranks #62 for income .
Weighted by population, the typical household earns about $125,886 across the county — reflecting what a typical resident sees, not a simple ZIP average.
45.8% of adults age 25+ hold a bachelor's degree or higher (33,004 of 72,058 reporting).
8 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
1 ZIP in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 10541 | Mahopac | Standard | 26,361 | $138,617 | 26.1 | 0.0% |
| 10512 | Carmel | Standard | 24,234 | $117,701 | 57.4 | -4.8% |
| 10509 | Brewster | Standard | 20,046 | $116,831 | 40.6 | 2.2% |
| 10579 | Putnam Valley | Standard | 9,019 | $132,500 | 36.6 | -2.6% |
| 12563 | Patterson | Standard | 7,304 | $98,415 | 22.3 | -9.9% |
| 10516 | Cold Spring | Standard | 5,362 | $140,225 | 33.4 | 0.7% |
| 10524 | Garrison | Standard | 4,578 | $146,250 | 21.3 | 4.0% |
| 10537 | Lake Peekskill | Standard | 2,439 | $132,117 | 1.2 | 24.9% |
| 10542 | Mahopac Falls | PO Box | 0 | — | 0.0 | — |