Simpson County Demographics

A map of Simpson County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	16,757	16,201	83.9%	82.7%
Black	1,381	1,622	6.9%	8.3%
Multiracial	1,060	894	5.3%	4.6%
Hispanic	726	648	3.6%	3.3%
Asian	30	94	0.2%	0.5%
Native American/Other	18	135	0.1%	0.7%

Simpson County, Kentucky has an estimated population of 19,972, a slight increase from the 19,594 recorded in the 2020 Census. The population is 83.9% White, 6.9% Black, 5.3% Multiracial, 3.6% Hispanic, 0.2% Asian, and 0.1% Native American/Other. This demographic dot map shows the population of Simpson County, with one dot drawn for each person counted by the Census, color-coded by race.

Simpson has become less racially diverse since the 2020 Census. It is 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 Simpson County, that probability was 30.6% in 2020 and 28.7% in the most recent ACS estimates.

Simpson County is ranked the 58th most populous county in Kentucky, out of 120 counties. Simpson County was ranked the 58th most populous county in the 2020 Census.

Simpson County's White Population

16,757 residents of Simpson County, or 83.9% of the population, identify as White. The share of White residents in Simpson County is slightly higher than in Kentucky overall, where 81.5% of the population is White. Simpson County ranks 110th statewide in terms of White residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's White population has grown by an estimated 3.4%. White residents' share of Simpson County's population has increased from 82.7% to 83.9%.

Simpson County is more White than neighboring Warren County (73.8% White), Sumner County (78.6% White), and Robertson County (78.7% White). Simpson County is less White than neighboring Logan County (87.5% White), and Allen County (92.7% White).

Simpson County's Black Population

1,381 residents of Simpson County, or 6.9% of the population, identify as Black. The share of Black residents in Simpson County is comparable to the share in Kentucky overall, where 7.6% of the population is Black. Simpson County ranks 10th statewide in terms of Black residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's Black population has declined by an estimated 14.9%. Black residents' share of Simpson County's population has decreased from 8.3% to 6.9%.

Simpson County is more Black than neighboring Logan County (4.5% Black), and Allen County (0.4% Black). Simpson County is less Black than neighboring Warren County (9.1% Black), Sumner County (8.4% Black), and Robertson County (7.2% Black).

Simpson County's Asian Population

30 residents of Simpson County, or 0.2% of the population, identify as Asian. The share of Asian residents in Simpson County is comparable to the share in Kentucky overall, where 1.6% of the population is Asian. Simpson County ranks 41st statewide in terms of Asian residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's Asian population has declined by an estimated 68.1%. Asian residents' share of Simpson County's population has remained roughly unchanged at 0.2%.

Simpson County is more Asian than neighboring Allen County (0% Asian). Simpson County is less Asian than neighboring Warren County (5% Asian), Sumner County (1.6% Asian), Logan County (0.3% Asian), and Robertson County (0.7% Asian).

Simpson County's Hispanic Population

726 residents of Simpson County, or 3.6% of the population, identify as Hispanic. The share of Hispanic residents in Simpson County is comparable to the share in Kentucky overall, where 5% of the population is Hispanic. Simpson County ranks 36th statewide in terms of Hispanic residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's Hispanic population has grown by an estimated 12.0%. Hispanic residents' share of Simpson County's population has remained roughly unchanged at 3.6%.

Simpson County is more Hispanic than neighboring Allen County (2.9% Hispanic). Simpson County is less Hispanic than neighboring Warren County (7.1% Hispanic), Sumner County (7.2% Hispanic), and Robertson County (10% Hispanic).

Simpson County's Native American/Other Population

18 residents of Simpson County, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Simpson County is comparable to the share in Kentucky overall, where 0.4% of the population is Native American/Other. Simpson County ranks 10th statewide in terms of Native American/Other residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's Native American/Other population has declined by an estimated 86.7%. Native American/Other residents' share of Simpson County's population has decreased from 0.7% to 0.1%.

Simpson County is less Native American/Other than neighboring Warren County (0.8% Native American/Other), Sumner County (0.7% Native American/Other), Logan County (0.5% Native American/Other), Robertson County (0.4% Native American/Other), and Allen County (0.5% Native American/Other).

Simpson County's Multiracial Population

1,060 residents of Simpson County, or 5.3% of the population, identify as Multiracial. The share of Multiracial residents in Simpson County is comparable to the share in Kentucky overall, where 3.9% of the population is Multiracial. Simpson County ranks 9th statewide in terms of Multiracial residents as a share of the population, out of 120 counties.

Since the 2020 Census, Simpson County's Multiracial population has grown by an estimated 18.6%. Multiracial residents' share of Simpson County's population has increased from 4.6% to 5.3%.

Simpson County is more Multiracial than neighboring Warren County (4.2% Multiracial), Sumner County (3.5% Multiracial), Logan County (3.7% Multiracial), Robertson County (2.9% Multiracial), and Allen County (3.5% 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.