Oldham County Demographics

A map of Oldham County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	59,255	57,836	85.6%	85.5%
Hispanic	3,466	3,235	5.0%	4.8%
Multiracial	2,807	2,839	4.1%	4.2%
Black	1,999	2,198	2.9%	3.3%
Asian	1,134	1,160	1.6%	1.7%
Native American/Other	596	339	0.9%	0.5%

Oldham County, Kentucky has an estimated population of 69,257, a slight increase from the 67,607 recorded in the 2020 Census. The population is 85.6% White, 5.0% Hispanic, 4.1% Multiracial, 2.9% Black, 1.6% Asian, and 0.9% Native American/Other. This demographic dot map shows the population of Oldham County, with one dot drawn for each person counted by the Census, color-coded by race.

Oldham is about as racially diverse as it was in 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 Oldham County, that probability was 26.3% in 2020 and 26.3% in the most recent ACS estimates.

Oldham County is ranked the 12th most populous county in Kentucky, out of 120 counties. Oldham County was ranked the 13th most populous county in the 2020 Census.

Oldham County's White Population

59,255 residents of Oldham County, or 85.6% of the population, identify as White. The share of White residents in Oldham County is slightly higher than in Kentucky overall, where 81.5% of the population is White. Oldham County ranks 98th statewide in terms of White residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's White population has grown by an estimated 2.5%. White residents' share of Oldham County's population has remained roughly unchanged at 85.6%.

Oldham County is more White than neighboring Clark County (79.6% White), Jefferson County (62% White), and Shelby County (77.6% White). Oldham County is less White than neighboring Trimble County (92.2% White), and Henry County (89.6% White).

Oldham County's Black Population

1,999 residents of Oldham County, or 2.9% of the population, identify as Black. The share of Black residents in Oldham County is slightly lower than in Kentucky overall, where 7.6% of the population is Black. Oldham County ranks 48th statewide in terms of Black residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's Black population has declined by an estimated 9.1%. Black residents' share of Oldham County's population has remained roughly unchanged at 2.9%.

Oldham County is more Black than neighboring Trimble County (1.1% Black), and Henry County (2.7% Black). Oldham County is less Black than neighboring Clark County (7% Black), Jefferson County (20.6% Black), and Shelby County (3.7% Black).

Oldham County's Asian Population

1,134 residents of Oldham County, or 1.6% of the population, identify as Asian. The share of Asian residents in Oldham County is comparable to the share in Kentucky overall, where 1.6% of the population is Asian. Oldham County ranks 8th statewide in terms of Asian residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's Asian population has declined by an estimated 2.2%. Asian residents' share of Oldham County's population has remained roughly unchanged at 1.6%.

Oldham County is more Asian than neighboring Trimble County (0.3% Asian), Clark County (1.2% Asian), Shelby County (0.9% Asian), and Henry County (0.5% Asian). Oldham County is less Asian than neighboring Jefferson County (3.1% Asian).

Oldham County's Hispanic Population

3,466 residents of Oldham County, or 5.0% of the population, identify as Hispanic. The share of Hispanic residents in Oldham County is comparable to the share in Kentucky overall, where 5% of the population is Hispanic. Oldham County ranks 18th statewide in terms of Hispanic residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's Hispanic population has grown by an estimated 7.1%. Hispanic residents' share of Oldham County's population has remained roughly unchanged at 5.0%.

Oldham County is more Hispanic than neighboring Trimble County (3% Hispanic), and Henry County (4.1% Hispanic). Oldham County is less Hispanic than neighboring Clark County (6.9% Hispanic), Jefferson County (8.6% Hispanic), and Shelby County (11% Hispanic).

Oldham County's Native American/Other Population

596 residents of Oldham County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Oldham County is comparable to the share in Kentucky overall, where 0.4% of the population is Native American/Other. Oldham County ranks 37th statewide in terms of Native American/Other residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's Native American/Other population has grown by an estimated 75.8%. Native American/Other residents' share of Oldham County's population has remained roughly unchanged at 0.9%.

Oldham County is more Native American/Other than neighboring Clark County (0.5% Native American/Other), Jefferson County (0.6% Native American/Other), Shelby County (0.5% Native American/Other), and Henry County (0.2% Native American/Other).

Oldham County's Multiracial Population

2,807 residents of Oldham County, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Oldham County is comparable to the share in Kentucky overall, where 3.9% of the population is Multiracial. Oldham County ranks 22nd statewide in terms of Multiracial residents as a share of the population, out of 120 counties.

Since the 2020 Census, Oldham County's Multiracial population has declined by an estimated 1.1%. Multiracial residents' share of Oldham County's population has remained roughly unchanged at 4.1%.

Oldham County is more Multiracial than neighboring Trimble County (2.6% Multiracial), and Henry County (2.9% Multiracial). Oldham County is less Multiracial than neighboring Clark County (4.9% Multiracial), Jefferson County (5.2% Multiracial), and Shelby County (6.2% 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.