Mono City, California Demographics & Population 2026

A note before these figures: with a population of 342, Mono City'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

Mono City is a small community located in California, within Mono County. The total population is 342. It ranks as the 1295th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Mono City is 38.9 years. This is 3% higher than the state median of 37.9 years. Only 5.3% of residents are under 18, indicating fewer families with children. 11.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Mono City is $109,265. This is 10% higher than the state median of $99,122. It is also 35% higher than the national median of $80,734. The ACS records no residents below the poverty line in Mono City. 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 Mono City, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $261,900. Housing costs are 64% lower than the state median of $734,700. With a home-value-to-income ratio of just 2.4x, Mono City is one of the most affordable housing markets in the area. 56.3% of occupied housing units are owner-occupied.

Race & Ethnicity

Every resident counted in Mono City was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

80.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Mono City in the top 10% of all cities in the state for educational attainment. This is 117% higher than the state rate of 37.1%. 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 Mono City, California 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 California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.