Lambertville, NJ Profile: Facts & Data

Lambertville, New Jersey - Basic Facts

The City of Lambertville had a population of 4,058 as of July 1, 2025.

The primary coordinate point for Lambertville is located at latitude 40.3659 and longitude -74.9429 in Hunterdon County. The formal boundaries for the City of Lambertville encompass a land area of 1.08 sq. miles and a water area of 0.14 sq. miles. Hunterdon County is in the Eastern time zone (GMT -5).

The City of Lambertville has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

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Lambertville, NJ Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	4,058 (100%)
Population in Households	4,034 (99.4%)
Population in Families	2,673 (65.9%)
Population in Group Quarters¹	24 ( 0.6%)
Population Density	3,743
Diversity Index²	51


INCOME
Median Household Income	$112,545
Average Household Income	$179,597
% of Income for Mortgage⁴	33%
Per Capita Income	$93,303
Wealth Index⁵	178
Socioeconomic Status Index⁶	Moderate (64.7)

HOUSING
Total HU (Housing Units)	2,270 (100%)
Owner Occupied HU	1,399 (61.6%)
Renter Occupied HU	709 (31.2%)
Vacant Housing Units	162 ( 7.1%)
Median Home Value	$594,449
Average Home Value	$635,956
Housing Affordability Index³	61

HOUSEHOLDS
Total Households	2,108
Average Household Size	1.91
Family Households	1,033
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

2,270 (100%)

Owner Occupied HU

1,399 (61.6%)

Renter Occupied HU

709 (31.2%)

Vacant Housing Units

162 ( 7.1%)

Median Home Value

$594,449

Average Home Value

$635,956

Housing Affordability Index³

HOUSEHOLDS

Total Households

2,108

Average Household Size

1.91

Family Households

1,033

Average Family Size

3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.38%	-0.24%
Households	0.14%	0.06%
Families		-0.04%
Median Household Income		1.55%
Per Capita Income		1.74%
Owner Occupied HU		0.65%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

-0.38%

-0.24%

Households

0.14%

0.06%

Families

-0.04%

Median Household Income

1.55%

Per Capita Income

1.74%

Owner Occupied HU

0.65%

Lambertville, NJ - Peer Comparisons by Rank and Percentile

The table below compares Lambertville to the other 700 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 336	52nd
Population Density	# 200	72nd
Median Household Income	# 317	55th
Housing Affordability Index	# 164	23rd
Per Capita Income	# 51	93rd
Diversity Index	# 381	46th

Variable Description

Rank

Percentile

Total Population

# 336

52nd

Population Density

# 200

72nd

Median Household Income

# 317

55th

Housing Affordability Index

# 164

23rd

Per Capita Income

# 51

93rd

Diversity Index

# 381

46th

New Jersey Census Data Comparison Tool

Lambertville, NJ Profile: Facts & Data

Lambertville, New Jersey - Basic Facts

Lambertville, NJ Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Lambertville, NJ - Peer Comparisons by Rank and Percentile

Lambertville, NJ - Most Popular Things to Do

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