Mount Sidney, Virginia Demographics & Population 2026

A note before these figures: with a population of 703, Mount Sidney'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

Mount Sidney is a small community located in Virginia, within Augusta County. The total population is 703. It ranks as the 429th most populous out of 681 Census-designated places in Virginia.

Age Demographics

The median age in Mount Sidney is 42.6 years. This is 9% higher than the state median of 39.0 years. Only 14.6% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Mount Sidney is $93,050. This is about the same as the state median of $93,170. It is also 15% higher than the national median of $80,734. The poverty rate stands at 5.7%. This is 42% lower than the state poverty rate of 9.9%. The survey records no unemployed residents in Mount Sidney, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $348,800. Housing costs are 9% lower than the state median of $383,700. The home-value-to-income ratio is 3.7x. 58.3% of occupied housing units are owner-occupied. This homeownership rate is 13% lower than the state average of 67.3%.

Race & Ethnicity

The largest racial or ethnic group in Mount Sidney is White (non-Hispanic), making up 60.9% of the population. Hispanic or Latino residents account for 25.5%. The Hispanic or Latino population is significantly higher than the state average (25.5% vs 11.0%). The Asian population is significantly higher than the state average (12.4% vs 6.9%).

Education

47.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 12% higher than the state rate of 42.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.6%. Notably, 33.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Mount Sidney, Virginia 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 Virginia state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 681 Census-designated places in Virginia. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.