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County ZIP codes · New York · FIPS 36079

Putnam County, NY ZIP Codes

Putnam County, New York has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 9 of the residential ones lie mainly in Putnam County and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $98,415 in 12563 (Patterson) to $146,250 in 10524 (Garrison) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Putnam County?

10509 · Brewster: $117k10512 · Carmel: $118k10516 · Cold Spring: $140k10524 · Garrison: $146k10537 · Lake Peekskill: $132k10541 · Mahopac: $139k10542 · Mahopac Falls: –10579 · Putnam Valley: $133k10588 · Shrub Oak: $179k12531 · Holmes: $129k12533 · Hopewell Junction: $142k12563 · Patterson: $98k12582 · Stormville: $133k125331051210579105091051610541105241253112563125821058810509 · Brewster: $117k10512 · Carmel: $118k10516 · Cold Spring: $140k10524 · Garrison: $146k10537 · Lake Peekskill: $132k10541 · Mahopac: $139k10542 · Mahopac Falls: –10579 · Putnam Valley: $133k10588 · Shrub Oak: $179k12531 · Holmes: $129k12533 · Hopewell Junction: $142k12563 · Patterson: $98k12582 · Stormville: $133k125331051210579105091051610541105241253112563125821058810509 · Brewster: $117k10512 · Carmel: $118k10516 · Cold Spring: $140k10524 · Garrison: $146k10537 · Lake Peekskill: $132k10541 · Mahopac: $139k10542 · Mahopac Falls: –10579 · Putnam Valley: $133k10588 · Shrub Oak: $179k12531 · Holmes: $129k12533 · Hopewell Junction: $142k12563 · Patterson: $98k12582 · Stormville: $133k125331051210579105091051610541105241253112563
The residential ZIP codes of Putnam County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $117,701 and $138,617.

They carry 13 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 13 residential ZIP codes in Putnam County

9 ZIP codes lie mainly in Putnam County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Putnam County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
10541 Mahopac 26,361 1,064 $139k $509k 96%
10512 Carmel 24,234 464 $118k $411k 100%
10509 Brewster 20,046 556 $117k $458k 100%
10579 Putnam Valley 9,019 260 $133k $548k 100%
12563 Patterson 7,304 311 $98k $412k 100%
10516 Cold Spring 5,362 170 $140k $639k 100%
10524 Garrison 4,578 220 $146k $561k 100%
10537 Lake Peekskill 2,439 2,273 $132k $410k 80%
10542 Mahopac Falls no residents 0 – – 100%

Partly in Putnam County

Residential ZIP codes mainly in another county that reach at least 1% into Putnam County, by their share here
In this county
12531 Holmes 2,337 134 $129k $475k 16%
12533 Hopewell Junction 27,325 559 $142k $479k 8%
10588 Shrub Oak 2,783 1,712 $179k $526k 3%
12582 Stormville 5,786 409 $133k $469k 2%

Download the 13 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Putnam County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Putnam County and in the neighboring counties
ZIPIn PutnamElsewhere
125338%Dutchess County 92%
1054196%Westchester County 4%
125822%Dutchess County 98%
105883%Westchester County 97%
1053780%Westchester County 20%
1253116%Dutchess County 84%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Putnam County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Putnam County's ZIP codes use 2 prefixes: 105 and 125.

Three-digit prefixes of Putnam County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Putnam County's
PrefixSectional centerHereAll codes
105 Westchester, NY (SCF 105) 9 66
125 Mid-Hudson, NY (SCF 125) 4 74

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.