Marble, Minnesota Demographics & Population 2026

A note before these figures: with a population of 669, Marble'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

Marble is a small community located in Minnesota, within Itasca County. The total population is 669. It ranks as the 439th most populous out of 914 Census-designated places in Minnesota.

Age Demographics

The median age in Marble is 30.8 years. This is 21% lower than the state median of 38.8 years. Only 13.2% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Marble is $53,958. This is 39% lower than the state median of $89,062. It is also 33% lower than the national median of $80,734. The poverty rate stands at 17.0%. This is 83% higher than the state poverty rate of 9.3%. The unemployment rate is 6.9%. This is 70% higher than the state rate of 4.1%. The median home value is $102,500. Housing costs are 69% lower than the state median of $329,300. With a home-value-to-income ratio of just 1.9x, Marble is one of the most affordable housing markets in the area. 78.0% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 72.2%.

Race & Ethnicity

Marble has a predominantly White (non-Hispanic) population, comprising 92.7% of all residents. Black or African American residents account for 3.4%. The Black or African American population (3.4%) is well below the state average of 7.0%. The Asian population (1.6%) is well below the state average of 5.1%.

Education

6.1% 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 84% lower than the state rate of 39.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.4%.

Data Sources & Methodology

All demographic data for Marble, Minnesota 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 Minnesota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 914 Census-designated places in Minnesota. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.