Delaware County Demographics

A map of Delaware County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	25,637	25,019	62.1%	61.9%
Native American/Other	8,435	8,612	20.4%	21.3%
Multiracial	4,559	4,558	11.0%	11.3%
Hispanic	1,862	1,621	4.5%	4.0%
Asian	635	471	1.5%	1.2%
Black	151	116	0.4%	0.3%

Delaware County, Oklahoma has an estimated population of 41,279, a slight increase from the 40,397 recorded in the 2020 Census. The population is 62.1% White, 20.4% Native American/Other, 11.0% Multiracial, 4.5% Hispanic, 1.5% Asian, and 0.4% Black. This demographic dot map shows the population of Delaware County, with one dot drawn for each person counted by the Census, color-coded by race.

Delaware is about as racially diverse as it was in the 2020 Census. It is 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 Delaware County, that probability was 55.6% in 2020 and 55.8% in the most recent ACS estimates.

Delaware County is ranked the 25th most populous county in Oklahoma, out of 77 counties. Delaware County was ranked the 25th most populous county in the 2020 Census.

Delaware County's White Population

25,637 residents of Delaware County, or 62.1% of the population, identify as White. The share of White residents in Delaware County is comparable to the share in Oklahoma overall, where 62.1% of the population is White. Delaware County ranks 54th statewide in terms of White residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's White population has grown by an estimated 2.5%. White residents' share of Delaware County's population has remained roughly unchanged at 62.1%.

Delaware County is more White than neighboring Mayes County (62% White), Craig County (61.1% White), and Cherokee County (44.9% White). Delaware County is less White than neighboring Ottawa County (62.4% White), and McDonald County (68.3% White).

Delaware County's Black Population

151 residents of Delaware County, or 0.4% of the population, identify as Black. The share of Black residents in Delaware County is lower than in Oklahoma overall, where 6.8% of the population is Black. Delaware County ranks 70th statewide in terms of Black residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's Black population has grown by an estimated 30.2%. Black residents' share of Delaware County's population has remained roughly unchanged at 0.4%.

Delaware County is less Black than neighboring Ottawa County (1.1% Black), McDonald County (2% Black), Craig County (3.3% Black), and Cherokee County (1.3% Black).

Delaware County's Asian Population

635 residents of Delaware County, or 1.5% of the population, identify as Asian. The share of Asian residents in Delaware County is comparable to the share in Oklahoma overall, where 2.4% of the population is Asian. Delaware County ranks 13th statewide in terms of Asian residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's Asian population has grown by an estimated 34.8%. Asian residents' share of Delaware County's population has remained roughly unchanged at 1.5%.

Delaware County is more Asian than neighboring Ottawa County (0.8% Asian), Mayes County (0.5% Asian), McDonald County (1.3% Asian), and Cherokee County (0.9% Asian). Delaware County is less Asian than neighboring Craig County (1.6% Asian).

Delaware County's Hispanic Population

1,862 residents of Delaware County, or 4.5% of the population, identify as Hispanic. The share of Hispanic residents in Delaware County is lower than in Oklahoma overall, where 12.7% of the population is Hispanic. Delaware County ranks 65th statewide in terms of Hispanic residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's Hispanic population has grown by an estimated 14.9%. Hispanic residents' share of Delaware County's population has increased from 4.0% to 4.5%.

Delaware County is more Hispanic than neighboring Mayes County (3.9% Hispanic), and Craig County (4% Hispanic). Delaware County is less Hispanic than neighboring Ottawa County (6.1% Hispanic), McDonald County (12.4% Hispanic), and Cherokee County (8% Hispanic).

Delaware County's Native American/Other Population

8,435 residents of Delaware County, or 20.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Delaware County is considerably higher than in Oklahoma overall, where 7.1% of the population is Native American/Other. Delaware County ranks 6th statewide in terms of Native American/Other residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's Native American/Other population has declined by an estimated 2.1%. Native American/Other residents' share of Delaware County's population has decreased from 21.3% to 20.4%.

Delaware County is more Native American/Other than neighboring Ottawa County (19.2% Native American/Other), Mayes County (20.1% Native American/Other), McDonald County (5.6% Native American/Other), and Craig County (19.7% Native American/Other). Delaware County is less Native American/Other than neighboring Cherokee County (31.2% Native American/Other).

Delaware County's Multiracial Population

4,559 residents of Delaware County, or 11.0% of the population, identify as Multiracial. The share of Multiracial residents in Delaware County is slightly higher than in Oklahoma overall, where 8.9% of the population is Multiracial. Delaware County ranks 17th statewide in terms of Multiracial residents as a share of the population, out of 77 counties.

Since the 2020 Census, Delaware County's Multiracial population has remained roughly the same. Multiracial residents' share of Delaware County's population has remained roughly unchanged at 11.0%.

Delaware County is more Multiracial than neighboring Ottawa County (10.4% Multiracial), McDonald County (10.4% Multiracial), and Craig County (10.2% Multiracial). Delaware County is less Multiracial than neighboring Mayes County (13.1% Multiracial), and Cherokee County (13.8% 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.