Califon, New Jersey Demographics & Population 2026

A note before these figures: with a population of 930, Califon'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

Califon is a small community located in New Jersey, within Hunterdon County. The total population is 930. It ranks as the 560th most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in Califon is 45.9 years. This is 14% higher than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Califon is $128,194. This is 24% higher than the state median of $103,556. It is also 59% higher than the national median of $80,734. The poverty rate stands at 7.5%. This is 23% lower than the state poverty rate of 9.7%. The unemployment rate is 3.6%. This is 44% lower than the state rate of 6.3%. The median home value is $431,600. Housing costs are 5% lower than the state median of $454,400. The home-value-to-income ratio is 3.4x. 84.3% of occupied housing units are owner-occupied. This homeownership rate is 32% higher than the state average of 63.8%.

Race & Ethnicity

Califon has a predominantly White (non-Hispanic) population, comprising 89.0% of all residents. Hispanic or Latino residents account for 7.4%. The White (non-Hispanic) population is significantly higher than the state average (89.0% vs 50.9%). The Black or African American population (0.2%) is well below the state average of 12.2%. The Hispanic or Latino population (7.4%) is well below the state average of 22.5%. The Asian population (0.5%) is well below the state average of 10.1%.

Education

57.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% higher than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.0%. Notably, 18.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Califon, 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.