Marshallville, New Jersey Demographics & Population 2026

A note before these figures: with a population of 480, Marshallville's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Marshallville is a small community located in New Jersey, within Cape May County. The total population is 480. It ranks as the 618th most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Marshallville is 38.1 years. This is 5% lower than the state median of 40.1 years. With 33.5% of the population under 18, Marshallville has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Marshallville is $116,563. This is 13% higher than the state median of $103,556. It is also 44% higher than the national median of $80,734. The ACS records no residents below the poverty line in Marshallville. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Marshallville, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $282,100. Housing costs are 38% lower than the state median of $454,400. With a home-value-to-income ratio of just 2.4x, Marshallville is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 57% higher than the state average of 63.8%.

Race & Ethnicity

Marshallville has a predominantly White (non-Hispanic) population, comprising 95.8% of all residents. The White (non-Hispanic) population is significantly higher than the state average (95.8% vs 50.9%).

Education

12.2% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 72% lower than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Marshallville, New Jersey is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Jersey state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 700 Census-designated places in New Jersey. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.