Lyon County Demographics

A map of Lyon County's Population by Race

Lyon County, Kentucky has an estimated population of 8,900, a slight increase from the 8,680 recorded in the 2020 Census. The population is 87.3% White, 6.8% Black, 2.5% Multiracial, 2.2% Hispanic, 0.6% Native American/Other, and 0.5% Asian. This demographic dot map shows the population of Lyon County, with one dot drawn for each person counted by the Census, color-coded by race.

Lyon has become more racially diverse since the 2020 Census. It is considerably less diverse than Kentucky overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Lyon County, that probability was 20.2% in 2020 and 23.1% in the most recent ACS estimates.

Lyon County is ranked the 105th most populous county in Kentucky, out of 120 counties. Lyon County was ranked the 106th most populous county in the 2020 Census.

Lyon County's White Population

7,774 residents of Lyon County, or 87.3% of the population, identify as White. The share of White residents in Lyon County is higher than in Kentucky overall, where 81.5% of the population is White. Lyon County ranks 77th statewide in terms of White residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's White population has remained roughly the same. White residents' share of Lyon County's population has decreased from 89.1% to 87.3%.

Lyon County is more White than neighboring Trigg County (86.3% White). Lyon County is less White than neighboring Caldwell County (89.7% White), Marshall County (95.4% White), Livingston County (94.1% White), and Crittenden County (93.8% White).

Lyon County's Black Population

602 residents of Lyon County, or 6.8% of the population, identify as Black. The share of Black residents in Lyon County is comparable to the share in Kentucky overall, where 7.6% of the population is Black. Lyon County ranks 21st statewide in terms of Black residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's Black population has grown by an estimated 18.7%. Black residents' share of Lyon County's population has increased from 5.8% to 6.8%.

Lyon County is more Black than neighboring Caldwell County (6% Black), Marshall County (0.6% Black), Trigg County (4.2% Black), Livingston County (0.1% Black), and Crittenden County (0.4% Black).

Lyon County's Asian Population

48 residents of Lyon County, or 0.5% of the population, identify as Asian. The share of Asian residents in Lyon County is comparable to the share in Kentucky overall, where 1.6% of the population is Asian. Lyon County ranks 49th statewide in terms of Asian residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's Asian population has grown by an estimated 41.2%. Asian residents' share of Lyon County's population has remained roughly unchanged at 0.5%.

Lyon County is more Asian than neighboring Caldwell County (0% Asian), Marshall County (0.4% Asian), Trigg County (0.2% Asian), Livingston County (0.1% Asian), and Crittenden County (0.3% Asian).

Lyon County's Hispanic Population

194 residents of Lyon County, or 2.2% of the population, identify as Hispanic. The share of Hispanic residents in Lyon County is slightly lower than in Kentucky overall, where 5% of the population is Hispanic. Lyon County ranks 77th statewide in terms of Hispanic residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's Hispanic population has grown by an estimated 27.6%. Hispanic residents' share of Lyon County's population has remained roughly unchanged at 2.2%.

Lyon County is more Hispanic than neighboring Caldwell County (1.5% Hispanic), Marshall County (2% Hispanic), and Crittenden County (1.8% Hispanic). Lyon County is less Hispanic than neighboring Trigg County (2.7% Hispanic), and Livingston County (2.5% Hispanic).

Lyon County's Native American/Other Population

57 residents of Lyon County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Lyon County is comparable to the share in Kentucky overall, where 0.4% of the population is Native American/Other. Lyon County ranks 30th statewide in terms of Native American/Other residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's Native American/Other population has grown by an estimated 23.9%. Native American/Other residents' share of Lyon County's population has remained roughly unchanged at 0.6%.

Lyon County is more Native American/Other than neighboring Caldwell County (0.3% Native American/Other), Marshall County (0.2% Native American/Other), Trigg County (0.2% Native American/Other), and Livingston County (0.1% Native American/Other). Lyon County is less Native American/Other than neighboring Crittenden County (0.7% Native American/Other).

Lyon County's Multiracial Population

225 residents of Lyon County, or 2.5% of the population, identify as Multiracial. The share of Multiracial residents in Lyon County is comparable to the share in Kentucky overall, where 3.9% of the population is Multiracial. Lyon County ranks 92nd statewide in terms of Multiracial residents as a share of the population, out of 120 counties.

Since the 2020 Census, Lyon County's Multiracial population has grown by an estimated 8.2%. Multiracial residents' share of Lyon County's population has remained roughly unchanged at 2.5%.

Lyon County is more Multiracial than neighboring Marshall County (1.5% Multiracial). Lyon County is less Multiracial than neighboring Trigg County (6.4% Multiracial), Livingston County (3.1% Multiracial), and Crittenden County (3.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.