Jefferson City CDP, Montana Demographics & Population 2026

Population Overview

Jefferson City CDP is a small community located in Montana. The total population is 446. It ranks as the 164th most populous out of 470 cities and towns in Montana.

Age Demographics

The median age in Jefferson City CDP is 38.8 years. This is 3% lower than the state median of 40.2 years. With 30.7% of the population under 18, Jefferson City CDP has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Jefferson City CDP is $73,875. This is 6% higher than the state median of $69,922. Compared to the national median of $78,538, household income here is 6% lower. The poverty rate stands at 4.9%. This is 59% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.8%. The median home value is $282,000. Housing costs are 17% lower than the state median of $338,100. The home-value-to-income ratio is 3.8x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 44% higher than the state average of 69.4%.

Race & Ethnicity

Jefferson City CDP has a predominantly White (non-Hispanic) population, comprising 95.7% of all residents. Hispanic or Latino residents account for 2.2%.

Education

33.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% 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 91.6%. Notably, 22.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Jefferson City CDP, 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.