Sidney city, Montana Demographics & Population 2026

Population Overview

Sidney city is a small city located in Montana. The total population is 6,235. It ranks as the 19th most populous out of 470 cities and towns in Montana.

Age Demographics

The median age in Sidney city is 38.9 years. This is 3% lower than the state median of 40.2 years.

Economy, Income & Housing

The median household income in Sidney city is $62,992. This is 10% lower than the state median of $69,922. Compared to the national median of $78,538, household income here is 20% lower. The poverty rate stands at 8.6%. This is 28% lower than the state poverty rate of 12.0%. The unemployment rate is 4.2%. This is 10% higher than the state rate of 3.8%. The median home value is $249,100. Housing costs are 26% lower than the state median of $338,100. The home-value-to-income ratio is 4.0x. 61.8% of occupied housing units are owner-occupied. This homeownership rate is 11% lower than the state average of 69.4%.

Race & Ethnicity

The largest racial or ethnic group in Sidney city is White (non-Hispanic), making up 83.6% of the population. Hispanic or Latino residents account for 6.9%. The Hispanic or Latino population is significantly higher than the state average (6.9% vs 4.4%). The Asian population (0.2%) is well below the state average of 0.8%.

Education

18.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 45% lower than the state rate of 34.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.0%.

Data Sources & Methodology

All demographic data for Sidney city, Montana is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Montana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 470 Census-designated places in Montana. For official data, visit data.census.gov.