Jefferson County Demographics

A map of Jefferson County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	4,075	3,993	75.7%	74.8%
Hispanic	589	584	10.9%	10.9%
Multiracial	445	425	8.3%	8.0%
Native American/Other	203	278	3.8%	5.2%
Black	65	27	1.2%	0.5%
Asian	3	30	0.1%	0.6%

Jefferson County, Oklahoma has an estimated population of 5,380, a less than 1% change from the 5,337 recorded in the 2020 Census. The population is 75.7% White, 10.9% Hispanic, 8.3% Multiracial, 3.8% Native American/Other, 1.2% Black, and 0.1% Asian. This demographic dot map shows the population of Jefferson County, with one dot drawn for each person counted by the Census, color-coded by race.

Jefferson has become less racially diverse since the 2020 Census. It is considerably less diverse than Oklahoma overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Jefferson County, that probability was 41.9% in 2020 and 40.6% in the most recent ACS estimates.

Jefferson County is ranked the 68th most populous county in Oklahoma, out of 77 counties. Jefferson County was ranked the 68th most populous county in the 2020 Census.

Jefferson County's White Population

4,075 residents of Jefferson County, or 75.7% of the population, identify as White. The share of White residents in Jefferson County is considerably higher than in Oklahoma overall, where 62.1% of the population is White. Jefferson County ranks 14th statewide in terms of White residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's White population has grown by an estimated 2.1%. White residents' share of Jefferson County's population has increased from 74.8% to 75.7%.

Jefferson County is more White than neighboring Cotton County (74.1% White), and Carter County (66.5% White). Jefferson County is less White than neighboring Stephens County (77.4% White), Montague County (83.6% White), and Clay County (86.9% White).

Jefferson County's Black Population

65 residents of Jefferson County, or 1.2% of the population, identify as Black. The share of Black residents in Jefferson County is lower than in Oklahoma overall, where 6.8% of the population is Black. Jefferson County ranks 64th statewide in terms of Black residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's Black population has grown by an estimated 140.7%. Black residents' share of Jefferson County's population has increased from 0.5% to 1.2%.

Jefferson County is more Black than neighboring Montague County (0.1% Black), and Clay County (1% Black). Jefferson County is less Black than neighboring Stephens County (1.3% Black), Cotton County (1.7% Black), and Carter County (6.1% Black).

Jefferson County's Asian Population

3 residents of Jefferson County, or 0.1% of the population, identify as Asian. The share of Asian residents in Jefferson County is slightly lower than in Oklahoma overall, where 2.4% of the population is Asian. Jefferson County ranks 32nd statewide in terms of Asian residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's Asian population has declined by an estimated 90.0%. Asian residents' share of Jefferson County's population has decreased from 0.6% to 0.1%.

Jefferson County is less Asian than neighboring Stephens County (0.5% Asian), Montague County (0.2% Asian), Clay County (0.8% Asian), and Carter County (1.3% Asian).

Jefferson County's Hispanic Population

589 residents of Jefferson County, or 10.9% of the population, identify as Hispanic. The share of Hispanic residents in Jefferson County is comparable to the share in Oklahoma overall, where 12.7% of the population is Hispanic. Jefferson County ranks 22nd statewide in terms of Hispanic residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's Hispanic population has remained roughly the same. Hispanic residents' share of Jefferson County's population has remained roughly unchanged at 10.9%.

Jefferson County is more Hispanic than neighboring Stephens County (8.7% Hispanic), Clay County (7.1% Hispanic), Cotton County (7.7% Hispanic), and Carter County (8.6% Hispanic). Jefferson County is less Hispanic than neighboring Montague County (12.3% Hispanic).

Jefferson County's Native American/Other Population

203 residents of Jefferson County, or 3.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Jefferson County is slightly lower than in Oklahoma overall, where 7.1% of the population is Native American/Other. Jefferson County ranks 53rd statewide in terms of Native American/Other residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's Native American/Other population has declined by an estimated 27.0%. Native American/Other residents' share of Jefferson County's population has decreased from 5.2% to 3.8%.

Jefferson County is more Native American/Other than neighboring Stephens County (3.5% Native American/Other), Montague County (0.5% Native American/Other), and Clay County (0.6% Native American/Other). Jefferson County is less Native American/Other than neighboring Cotton County (5.9% Native American/Other), and Carter County (7.2% Native American/Other).

Jefferson County's Multiracial Population

445 residents of Jefferson County, or 8.3% of the population, identify as Multiracial. The share of Multiracial residents in Jefferson County is comparable to the share in Oklahoma overall, where 8.9% of the population is Multiracial. Jefferson County ranks 51st statewide in terms of Multiracial residents as a share of the population, out of 77 counties.

Since the 2020 Census, Jefferson County's Multiracial population has grown by an estimated 4.7%. Multiracial residents' share of Jefferson County's population has remained roughly unchanged at 8.3%.

Jefferson County is more Multiracial than neighboring Montague County (3.4% Multiracial), and Clay County (3.5% Multiracial). Jefferson County is less Multiracial than neighboring Stephens County (8.5% Multiracial), Cotton County (10.5% Multiracial), and Carter County (10.5% 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.