Bergen County area

Population and density of Bergen County

The Census Bureau estimates that 977,026 people lived in Bergen County on July 1, 2025. That ranks #55 of 3,222 county equivalents nationally and #1 of 21 in New Jersey. Since the April 1, 2020 estimates base of 955,728, the population has grown by 21,298 (+2.2%), compared with +2.8% for New Jersey as a whole.

With 232.8 square miles of land, that is 4,197 people per square mile (1,620 per km²), placing Bergen County #28 nationally for density and #4 in New Jersey. The median county equivalent has 47 people per square mile; the New Jersey median is 1,137. Put another way, there are about 0.152 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Bergen County

Bergen County is divided into 70 municipalities and townships. In New Jersey, county subdivisions are local governments, and together they cover all of the county’s land and residents.

The most populous is Hackensack city, with 46,380 residents (4.7% of the county). The largest by land is Mahwah township, at 25.4 mi², or 10.9% of the county’s land. Among those with at least 1,000 residents in 2020, Montvale borough grew fastest since then (+19.8%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each subdivision inside Bergen County. Land: 2026 Census Gazetteer. How communities are listed.

Metropolitan area

Bergen County is a central county of the New York-Newark-Jersey City, NY-NJ Metropolitan Statistical Area, in the New York-Jersey City-White Plains, NY-NJ metropolitan division. Its 22 county equivalents have 20,112,448 residents on 6,139.7 square miles of land; Bergen County accounts for 3.8% of the land and 4.9% of the residents. By combined land it ranks #34 of 393 metropolitan areas, and #1 by population. It belongs to the New York-Newark, NY-NJ-CT-PA Combined Statistical Area.

ZIP codes

66 ZIP Code Tabulation Areas have land in Bergen County, and each lies mostly inside the county.

070100702007022070240702607031070570707007071070720707307074070750740107407074100741707423074300743207436074460745007452074580746307481076010760307604076050760607607076080762007621076240762607627076280763007631076320764007641076420764307644076450764607647076480764907650076520765607657076600766107662076630766607670076750767607677

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Bergen County

Bergen County shares a land border with 7 county equivalents, including 4 in New York. It has more land than 6 of them. The largest neighbor is Westchester County (430.8 mi²) and the smallest is New York County (22.7 mi²). Together with its neighbors, Bergen County forms a block of 1,260.6 mi² of land, of which it holds 18.5%.

How big is Bergen County compared with U.S. states?

Bergen County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 4.4 times as much. New Jersey’s county land could hold about 32 areas the size of Bergen County.

Another way to picture it: the same land area would fill a square about 15.3 miles (24.6 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Bergen County?

Bergen County has more land than 278 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Bergen County at #2,960 nationally by total area, 16 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 5.5%, compared with a national county-equivalent median of 1.2% — 4.4 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Bergen County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.