ZIP Codes of Sullivan County, NY

Population & People
Population & People
Total Population
81,690
Household Income
Household Income
Median Income
$80,796
Housing
Housing
Total Housing Units
51,563
Business & Economy
Business & Economy
Total Businesses
2,081
Employment
Employment
Employment Rate
55.28%
Education
Education
Bachelor's Degree+
30.04%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 56 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:56 ZIP Codes (47 Standard, 9 PO Box, 0 Unique) [See All]
Area Codes:329 / 607 / 845 / 914
Timezone:Eastern (GMT -05:00)
Local Time:2:13:17 PM
Population:81,690 [See All]
FIPS:36105
CBSA:Monticello, NY
Land Area:1,239 sq mi
Water Area:31 sq mi
Coordinates:41.7102, -74.7722
Quick Link:
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Extreme geographic sprawl
The largest ZIP spans 281× the smallest by area — 155.6 sq mi down to 0.55.
Notable income spread
Median income ranges $34,708 to $137,500 across ZIPs — a 4.0× gap.
Striking education divide
Bachelor's share spans 10.9% to 58.4% — a 47-point gap.

Standout ZIPs in this County


Most Populous
Monticello · 12,197 people
14.9% of county total
Highest Income
Kauneonga Lake · $175,083 median
2.2× county average
Largest Land Area
Livingston Manor · 155.6 sq mi
Spans the most ground
Fastest Growth
Woodridge · 39.8% (10-yr)
1,855 → 2,594 residents
Most Educated
Rock Hill · 47.8% bachelor's+
984 of 2,058 adults 25+

Things worth knowing about Sullivan County


81,690 residents live across 56 ZIPs covering 1,239 sq mi, served by 55 distinct USPS-recognized cities.

Population moved from 78,373 to 81,690 from 2014 to 2024 — a +4.2% change. 26 ZIPs gained residents, 29 lost.

The county's wealthiest ZIP 12749 (Kauneonga Lake, $175,083 median) and poorest ZIP 12768 (Parksville, $34,708) are 13.3 miles apart — a 5.0× income gap across local geography.

Median home values vary 2.7× across this county — from $159,500 in 12751 (Kiamesha Lake) to $424,100 in 12720 (Bethel).

Density varies 36× across the county — from 15 people/sq mi in 12777 (Forestburgh) to 521 in 12751 (Kiamesha Lake).

Educational attainment ranges from 8.2% bachelor's+ in 12785 (Westbrookville) to 58.4% in 12766 (North Branch) — the breadth of educational profiles across the area.

Within New York, this is the #32 most populous of 62 counties and ranks #27 for median household income .

Weighted by population, the typical household earns about $74,826 across the county — reflecting what a typical resident sees, not a simple ZIP average.

30.0% of adults age 25+ hold a bachelor's degree or higher (17,245 of 57,415 reporting).

47 Standard delivery, 9 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Sullivan County


Two counties in one

Median household income spans 5.0× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Kauneonga Lake
Median income: $175,083
Population: 419
Bachelor's+: 23.8%
vs
Poorest ZIP (pop >= 500)
Parksville
Median income: $34,708
Population: 857
Bachelor's+: 23.5%
For every $1 of household income in 12768, the typical household in 12749 earns $5.04.

Big & sparse

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.

Total area
1,239
square miles
Avg density
65.9
people per sq mi
Population
81,690
across 56 ZIPs
Livingston Manor
155.6 sq mi
4,025 residents
Roscoe
121.7 sq mi
2,073 residents
Grahamsville
73.1 sq mi
1,732 residents

All ZIP Codes in Sullivan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
12701MonticelloStandard12,197$57,22263.311.7%
12754LibertyStandard8,296$67,62427.819.3%
12721BloomingburgStandard7,359$103,21425.428.1%
12790WurtsboroStandard4,537$79,19369.8-2.9%
12758Livingston ManorStandard4,025$68,958155.6-11.1%
12788WoodbourneStandard3,037$62,76822.65.3%
12775Rock HillStandard2,623$112,60014.620.3%
12789WoodridgeStandard2,594$71,72917.739.8%
12747HurleyvilleStandard2,234$71,56314.029.7%
12779South FallsburgStandard2,205$47,6887.64.6%
12776RoscoeStandard2,073$84,211121.7-2.4%
12723CallicoonStandard1,923$77,31336.8-8.0%
12733FallsburgStandard1,865$56,0564.311.9%
12764NarrowsburgStandard1,861$67,77865.715.8%
12740GrahamsvilleStandard1,732$103,46273.1-7.2%
12759Loch SheldrakeStandard1,619$41,5067.1-15.2%
12748JeffersonvilleStandard1,518$86,92726.3-16.8%
12737Glen SpeyStandard1,513$87,93934.8-26.6%
12751Kiamesha LakeStandard1,407$53,5492.721.9%
12719BarryvilleStandard1,339$79,92119.65.0%
12726CochectonStandard1,168$77,14933.4-11.0%
12783Swan LakeStandard1,060$67,77834.8-56.3%
12734FerndaleStandard950$56,74016.030.5%
12785WestbrookvillePO Box917$140,3972.6-16.3%
12763Mountain DaleStandard890$55,74113.825.5%
12765NeversinkStandard87313.4-15.5%
12768ParksvilleStandard857$34,70832.813.1%
12732EldredStandard776$50,12526.6-1.4%
12791YoungsvilleStandard763$74,7442.618.1%
12778SmallwoodPO Box707$50,9596.9235.1%
12777ForestburghStandard695$137,50047.7-8.2%
12786White LakeStandard61019.1108.9%
12766North BranchStandard5359.311.0%
12720BethelStandard447$66,5975.8139.0%
12738Glen WildStandard423$95,4812.1-34.9%
12749Kauneonga LakePO Box419$175,0831.224.3%
12725ClaryvilleStandard403$90,89372.1107.7%
12762Mongaup ValleyStandard394$87,3817.0-0.3%
12760Long EddyStandard367$90,93847.2-27.3%
12769PhillipsportPO Box325$141,7790.0296.3%
12752Lake HuntingtonStandard3091.6106.0%
12743Highland LakeStandard279$86,0539.810.7%
12742HarrisStandard253$148,1602.3-12.8%
12741HankinsStandard222$68,89710.1-27.0%
12787White Sulphur SpringsStandard192$43,1020.6-60.8%
12781SummitvillePO Box1770.0-48.8%
12792YulanStandard1630.8-45.7%
12767ObernburgPO Box1560.011.4%
12736Fremont CenterStandard145$44,3302.5-27.9%
12770Pond EddyStandard145$108,4523.8-40.8%
12724Callicoon CenterPO Box601.8-83.7%
12750Kenoza LakeStandard330.6-72.0%
12745HortonvilleStandard201.1-89.6%
12784ThompsonvillePO Box00.0-100.0%
12722BurlinghamPO Box00.0-100.0%
12727CochectonStandard0.0

Adjacent & Nearby Counties