Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/NY/COUNTY/DELAWARE

Delaware County, NY ZIP codes

There are 34 ZIP codes in Delaware County, NY, in 34 towns, from 12421 to 13860. The largest are 13856 (Walton), 13753 (Delhi) and 13838 (Sidney).

The county seat is Delhi.

ZIP codes
34
Towns
34
County seat
Delhi
County FIPS
36025
Population
44,487
Median household income
$63,337
Land area
1,443 sq mi
Area code
845

Delaware County ZIP codes by town

Delhi (county seat)
13753

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Delaware County ZIP codes

12421124341243812441124551245912474127601277613731137391374013750137511375213753137551375613757137741377513782137831378613788138041380613838138391384213846138471385613860

The ZIP codes of Delaware County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Delaware County in numbers

About 44,487 people live in Delaware County, in 19,203 households, the 53rd most populous of New York's 62 counties. The median household income is $63,337 a year, 26% below the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $183,100 (57% below the New York median), and median gross rent is $880 a month. The median age is 48.8; 27.6% of adults 25 and over hold a bachelor's degree or higher (40.2% across New York); the average commute takes 26 minutes.

Population44,487Delaware44,487
Households19,203Delaware19,203
Median age48.8Delaware48.8New York39.8US 38.9
Median household income$63,337Delaware$63,337New York$85,974US $80,734
Median home value$183,100Delaware$183,100New York$423,800US $332,700
Median gross rent$880Delaware$880New York$1,621US $1,413
Bachelor's degree or higher27.6%Delaware27.6%New York40.2%US 35.7%
Mean commute25.7 minDelaware25.7 minNew York32.6 minUS 26.4 min
Population density31 / sq miDelaware31 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Delaware County

Largest towns in Delaware County
TownZIP codesPopulation
Sidney 1 3,931
Delhi 1 3,136
Walton 1 2,423
Sidney Center 1 1,360
East Meredith 1 1,130
Grand Gorge 1 944
Hamden 1 936
Davenport 1 896
Delancey 1 858
Roxbury 1 857
Hancock 1 745
East Branch 1 697
Roscoe 1 627
Bovina Center 1 626
Margaretville 1 617

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Delaware County.

Not sure you are in Delaware County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Delaware County, with figures

ZIP codes in Delaware County
ZIP City Type Population Median income Median home
12421 Denver , NY Standard 261 $100,819 $372,200
12434 Grand Gorge , NY Standard 944 $48,656 $196,300
12438 Halcottsville , NY Standard 190 $78,512 —
12441 Highmount , NY Standard 106 $55,893 —
12455 Margaretville , NY Standard 1,689 $85,926 $255,100
12459 New Kingston , NY Standard 30 — —
12474 Roxbury , NY Standard 857 $57,428 $265,300
12760 Long Eddy , NY Standard 367 $90,938 $260,900
12776 Roscoe , NY Standard 2,073 $84,211 $248,200
13731 Andes , NY Standard 1,038 $73,750 $291,300
13739 Bloomville , NY Standard 833 $64,219 $208,500
13740 Bovina Center , NY Standard 626 $80,625 $354,100
13750 Davenport , NY Standard 896 $62,344 $162,700
13751 Davenport Center , NY Standard 297 — $210,600
13752 Delancey , NY Standard 858 $66,302 $276,500
13753 Delhi , NY Standard 5,696 $70,000 $216,200
13755 Downsville , NY Standard 652 $64,375 $163,100
13756 East Branch , NY Standard 697 $71,765 $164,100
13757 East Meredith , NY Standard 1,130 $73,523 $225,000
13774 Fishs Eddy , NY Standard 323 $70,638 $152,700
13775 Franklin , NY Standard 1,752 $78,750 $180,000
13782 Hamden , NY Standard 936 $62,961 $234,400
13783 Hancock , NY Standard 2,035 $51,510 $162,300
13786 Harpersfield , NY Standard 430 $54,688 $208,600
13788 Hobart , NY Standard 997 $100,313 $224,100
13804 Masonville , NY Standard 244 $45,000 $132,400
13806 Meridale , NY Standard 143 — —
13838 Sidney , NY Standard 4,251 $53,306 $122,000
13839 Sidney Center , NY Standard 1,360 $54,271 $121,300
13842 South Kortright , NY Standard 582 $88,500 $201,000
13846 Treadwell , NY Standard 308 $32,857 $222,200
13847 Trout Creek , NY Standard 18 — —
13856 Walton , NY Standard 5,881 $48,958 $156,500
13860 West Davenport , NY Standard 257 $143,315 $255,500

Cite this page

zipcodes.pro. “Delaware County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ny/county/delaware

Underlying data is public domain or openly licensed — sources, vintages and licences.