Jeff, Kentucky Demographics & Population 2026

A note before these figures: with a population of 309, Jeff'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

Jeff is a small community located in Kentucky, within Perry County. The total population is 309. It ranks as the 423rd most populous out of 552 Census-designated places in Kentucky.

Age Demographics

The median age in Jeff is 38.2 years. This is 2% lower than the state median of 39.1 years.

Economy, Income & Housing

The median household income in Jeff is $250,000+. This is 292% higher than the state median of $63,726. It is also 210% higher than the national median of $80,734. The poverty rate stands at 3.9%. This is 76% lower than the state poverty rate of 16.1%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Jeff, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $189,500. Housing costs are 8% lower than the state median of $205,600. With a home-value-to-income ratio of just 0.8x, Jeff is one of the most affordable housing markets in the area. 91.3% of occupied housing units are owner-occupied. This homeownership rate is 34% higher than the state average of 68.3%.

Race & Ethnicity

Jeff has a predominantly White (non-Hispanic) population, comprising 94.5% of all residents.

Education

30.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 11% higher than the state rate of 27.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.4%. Notably, 30.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Jeff, Kentucky 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 Kentucky state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 552 Census-designated places in Kentucky. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.