County Line, Alabama Demographics & Population 2026

A note before these figures: with a population of 358, County Line'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

County Line is a small community located in Alabama, within Jefferson County. The total population is 358. It ranks as the 456th most populous out of 592 Census-designated places in Alabama.

Age Demographics

The median age in County Line is 40.8 years. This is 4% higher than the state median of 39.3 years. Only 9.8% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in County Line is $61,250. This is 4% lower than the state median of $63,999. It is also 24% lower than the national median of $80,734. The poverty rate stands at 16.5%. This is 6% higher than the state poverty rate of 15.6%. The unemployment rate is 0.5%. This is 89% lower than the state rate of 4.7%. The median home value is $95,000. Housing costs are 55% lower than the state median of $209,900. With a home-value-to-income ratio of just 1.6x, County Line is one of the most affordable housing markets in the area. 85.7% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 70.2%.

Race & Ethnicity

County Line has a predominantly White (non-Hispanic) population, comprising 96.9% of all residents. Hispanic or Latino residents account for 1.4%. The White (non-Hispanic) population is significantly higher than the state average (96.9% vs 63.4%). The Hispanic or Latino population (1.4%) is well below the state average of 5.6%. The Asian population (0.3%) is well below the state average of 1.4%.

Education

4.6% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 84% lower than the state rate of 28.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.9%.

Data Sources & Methodology

All demographic data for County Line, Alabama 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 Alabama state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 592 Census-designated places in Alabama. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.