Middleville, New York Demographics & Population 2026

A note before these figures: with a population of 652, Middleville'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

Middleville is a small community located in New York, within Herkimer County. The total population is 652. It ranks as the 974th most populous out of 1,289 Census-designated places in New York.

Age Demographics

The median age in Middleville is 32.4 years. This is 19% lower than the state median of 39.8 years. With 38.5% of the population under 18, Middleville has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Middleville is $84,125. This is 2% lower than the state median of $85,974. It is also 4% higher than the national median of $80,734. The poverty rate stands at 7.7%. This is 45% lower than the state poverty rate of 14.0%. The unemployment rate is 7.0%. This is 9% higher than the state rate of 6.4%. The median home value is $163,100. Housing costs are 62% lower than the state median of $423,800. With a home-value-to-income ratio of just 1.9x, Middleville is one of the most affordable housing markets in the area. 95.9% of occupied housing units are owner-occupied. This homeownership rate is 76% higher than the state average of 54.4%.

Race & Ethnicity

Middleville has a predominantly White (non-Hispanic) population, comprising 95.1% of all residents. Black or African American residents account for 2.3%. The White (non-Hispanic) population is significantly higher than the state average (95.1% vs 52.8%). The Black or African American population (2.3%) is well below the state average of 13.4%. The Hispanic or Latino population (0.3%) is well below the state average of 19.8%.

Education

14.5% 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 64% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.3%.

Data Sources & Methodology

All demographic data for Middleville, New York 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 York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.