Rockland County, New York

County seat: New City · Population 357,397 (2025) · 174 sq mi

Rockland County is the 13th most populous of New York's 62 counties, with 357,397 people (2025 estimate). Its county seat is New City. The map shows its 18 cities and towns and the 5 neighboring counties.

Map of Rockland County, New York with cities, towns and the county boundary
Rockland County, New York with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 170 KBPNG image 125 KBNew York county map

Rockland County facts

County seat
New City
Population (2025 estimate)
357,397 +5.6% since 2020
Land area
174 sq mi 57th largest of 62
Water area
26 sq mi
Population density
2,058 per sq mi
Established
1798
Largest city
Ramapo 161,564
Median household income
$109,959
Cities and towns
18 plus 17 CDPs
ZIP codes
26
Time zone
Eastern
FIPS code
36087

Cities and towns in Rockland County

Rockland County has 18 incorporated cities, towns and villages. Populations count the people living inside Rockland County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Spring ValleyVillage34,482
HaverstrawVillage12,791
SuffernVillage11,796
West HaverstrawVillage11,025
Chestnut RidgeVillage10,987
AirmontVillage10,634
New SquareVillage10,214
NyackVillage7,511
Wesley HillsVillage6,477
KaserVillage6,121
New HempsteadVillage5,657
MontebelloVillage4,828
PomonaVillage4,053
SloatsburgVillage3,120
PiermontVillage2,607
Upper NyackVillage2,087
HillburnVillage950
Grand View-on-HudsonVillage278

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
New City34,458
Monsey28,160
Nanuet19,799
Pearl River16,155
Stony Point12,728
Valley Cottage9,165
Hillcrest9,071
Viola8,461
Congers8,275
Mount Ivy8,121
Tappan6,687
Blauvelt5,406
Orangeburg4,529
Thiells4,475
Bardonia3,717
West Nyack3,681
Sparkill1,483

ZIP codes in Rockland County

26 ZIP codes reach into Rockland County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Rockland County, 2020–2025

Rockland County grew by 19,065 people (+5.6%) between April 2020 and July 2025: 20,905 more births than deaths and a net loss of 2,211 people from migration.

Year (July 1)Population
2020337,429
2021339,874
2022342,154
2023346,437
2024354,829
2025357,397

Neighboring counties

Printable Rockland County map

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Sources

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