Johnson County Demographics

A map of Johnson County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	15,880	16,126	87.3%	89.8%
Black	853	724	4.7%	4.0%
Multiracial	636	510	3.5%	2.8%
Hispanic	591	516	3.2%	2.9%
Native American/Other	184	45	1.0%	0.3%
Asian	52	27	0.3%	0.2%

Johnson County, Tennessee has an estimated population of 18,196, a slight increase from the 17,948 recorded in the 2020 Census. The population is 87.3% White, 4.7% Black, 3.5% Multiracial, 3.2% Hispanic, 1.0% Native American/Other, and 0.3% Asian. This demographic dot map shows the population of Johnson County, with one dot drawn for each person counted by the Census, color-coded by race.

Johnson has become more racially diverse since the 2020 Census. It is considerably less diverse than Tennessee overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Johnson County, that probability was 18.9% in 2020 and 23.4% in the most recent ACS estimates.

Johnson County is ranked the 70th most populous county in Tennessee, out of 95 counties. Johnson County was ranked the 70th most populous county in the 2020 Census.

Johnson County's White Population

15,880 residents of Johnson County, or 87.3% of the population, identify as White. The share of White residents in Johnson County is significantly higher than in Tennessee overall, where 71% of the population is White. Johnson County ranks 39th statewide in terms of White residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's White population has declined by an estimated 1.5%. White residents' share of Johnson County's population has decreased from 89.8% to 87.3%.

Johnson County is more White than neighboring Bristol County (84.5% White). Johnson County is less White than neighboring Watauga County (88.5% White), Washington County (94.1% White), Carter County (92.8% White), and Ashe County (90.8% White).

Johnson County's Black Population

853 residents of Johnson County, or 4.7% of the population, identify as Black. The share of Black residents in Johnson County is considerably lower than in Tennessee overall, where 15.4% of the population is Black. Johnson County ranks 39th statewide in terms of Black residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's Black population has grown by an estimated 17.8%. Black residents' share of Johnson County's population has increased from 4.0% to 4.7%.

Johnson County is more Black than neighboring Watauga County (1.6% Black), Washington County (1.8% Black), Carter County (1.9% Black), and Ashe County (0.9% Black). Johnson County is less Black than neighboring Bristol County (5.8% Black).

Johnson County's Asian Population

52 residents of Johnson County, or 0.3% of the population, identify as Asian. The share of Asian residents in Johnson County is comparable to the share in Tennessee overall, where 1.9% of the population is Asian. Johnson County ranks 91st statewide in terms of Asian residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's Asian population has grown by an estimated 92.6%. Asian residents' share of Johnson County's population has remained roughly unchanged at 0.3%.

Johnson County is more Asian than neighboring Carter County (0.1% Asian). Johnson County is less Asian than neighboring Watauga County (0.9% Asian), Washington County (0.5% Asian), Bristol County (0.5% Asian), and Ashe County (0.4% Asian).

Johnson County's Hispanic Population

591 residents of Johnson County, or 3.2% of the population, identify as Hispanic. The share of Hispanic residents in Johnson County is slightly lower than in Tennessee overall, where 7.4% of the population is Hispanic. Johnson County ranks 49th statewide in terms of Hispanic residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's Hispanic population has grown by an estimated 14.5%. Hispanic residents' share of Johnson County's population has remained roughly unchanged at 3.2%.

Johnson County is more Hispanic than neighboring Washington County (1.9% Hispanic), Carter County (2.5% Hispanic), and Bristol County (2.8% Hispanic). Johnson County is less Hispanic than neighboring Watauga County (6.2% Hispanic), and Ashe County (6% Hispanic).

Johnson County's Native American/Other Population

184 residents of Johnson County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Johnson County is comparable to the share in Tennessee overall, where 0.6% of the population is Native American/Other. Johnson County ranks 92nd statewide in terms of Native American/Other residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's Native American/Other population has grown by an estimated 308.9%. Native American/Other residents' share of Johnson County's population has increased from 0.3% to 1.0%.

Johnson County is more Native American/Other than neighboring Watauga County (0.2% Native American/Other), Washington County (0.2% Native American/Other), Carter County (0.2% Native American/Other), and Ashe County (0.4% Native American/Other). Johnson County is less Native American/Other than neighboring Bristol County (1.9% Native American/Other).

Johnson County's Multiracial Population

636 residents of Johnson County, or 3.5% of the population, identify as Multiracial. The share of Multiracial residents in Johnson County is comparable to the share in Tennessee overall, where 3.7% of the population is Multiracial. Johnson County ranks 84th statewide in terms of Multiracial residents as a share of the population, out of 95 counties.

Since the 2020 Census, Johnson County's Multiracial population has grown by an estimated 24.7%. Multiracial residents' share of Johnson County's population has increased from 2.8% to 3.5%.

Johnson County is more Multiracial than neighboring Watauga County (2.7% Multiracial), Washington County (1.6% Multiracial), Carter County (2.5% Multiracial), and Ashe County (1.4% Multiracial). Johnson County is less Multiracial than neighboring Bristol County (4.7% 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.