• county
  • FIPS 40041
  • Largest town: Grove

Delaware County, Oklahoma

Delaware County had 41,771 residents in the Census Vintage 2024 estimate, on 737.8 square miles of land. It ranks 25th of 77 in Oklahoma by population and 47th by land area.

Population
41,771
#25 of 77 in Oklahoma · #1,161 in US
Area
737.8 sq mi
#47 of 77 in Oklahoma · #1,198 in US
Density
57 / sq mi
#21 of 77 in Oklahoma · #1,358 in US
Median household income
$48,763
#63 of 77 in Oklahoma · #2,794 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Delaware County within Oklahoma. Pin: Oklahoma City.

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Tools and pages that start from Delaware County

Delaware County population, land area and income

Delaware County had 41,771 residents in the Census Vintage 2024 estimate, on 737.8 square miles of land. It ranks 25th of 77 in Oklahoma by population and 47th by land area. That works out to 56.6 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Oklahoma has 20,577 residents, so Delaware County is 2.0 times that size.

Its SAIPE 2023 median household income of $48,763 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

41,771

3144th1st

1161st of 3,144 (US)

Land area

738 sq mi

3144th1st

1198th of 3,144 (US)

Density

56.6 / sq mi

3144th1st

1358th of 3,144 (US)

Median household income

$48,763

3143rd1st

2794th of 3,143 (US)

Rank within Oklahoma (77)

Population

41,771

77th1st

25th of 77 (OK)

Land area

738 sq mi

77th1st

47th of 77 (OK)

Density

56.6 / sq mi

77th1st

21st of 77 (OK)

Median household income

$48,763

77th1st

63rd of 77 (OK)

How Delaware County's population changed since 2020

Delaware County gained 1,381 residents between the July 2020 and July 2024 estimates, a rise of 3.4%. That ranks 15th of 77 in Oklahoma for growth. The median Oklahoma county changed by +0.8%, and the state as a whole by +3.3%.

Since the April 2020 estimates base, Delaware County recorded 1,778 births and 2,978 deaths, a natural change of -1,200. Net international migration added +48 and net domestic migration, people moving to or from other US counties, came to +2,527. The largest single component was domestic migration, which added 2,527 people.

40.4k202041.0k202141.5k202241.8k202341.8k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,778
Deaths
2,978
Net international migration
+48
Net domestic migration
+2,527
Change, July 2023 to July 2024
-4

Where Delaware County is

The Census internal point of Delaware County is at 36.393400, -94.808200. It sits in UTM zone 15N. The map shades Oklahoma's 77 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Delaware County outlined. Dots are towns of 1,000+ people with residents in it.

Kingfisher County: +4.2%Okfuskee County: +0.8%Creek County: +2.9%Carter County: +2.3%Hughes County: +0.2%Murray County: -0.9%Haskell County: +2.2%Cherokee County: +3.5%Grady County: +6.3%Canadian County: +16.9%Caddo County: -2.1%Garvin County: +1.9%Custer County: -0.6%Pushmataha County: +0.1%Mayes County: +2.8%Stephens County: +2.9%Dewey County: -4.6%Greer County: -1.1%Logan County: +8.3%Atoka County: +3.1%Nowata County: +2.5%Beckham County: -0.4%Cimarron County: -6.9%Harper County: -1.2%Cleveland County: +2.6%Texas County: -3.4%Marshall County: +5.3%Tulsa County: +3.4%McIntosh County: +4.0%Grant County: -1.3%Seminole County: -0.7%Garfield County: -1.1%Jackson County: -0.8%Blaine County: -1.5%Lincoln County: +4.4%Alfalfa County: +0.0%Jefferson County: +0.8%Okmulgee County: +1.1%Major County: -2.3%Noble County: -0.2%Oklahoma County: +2.3%Pawnee County: +3.5%Bryan County: +8.6%Payne County: +3.1%Adair County: +1.9%Harmon County: -6.5%Love County: +2.6%Craig County: +2.6%Rogers County: +6.3%Muskogee County: +0.8%Sequoyah County: +3.3%Delaware County: +3.4%Johnston County: +0.5%Pittsburg County: -0.9%Le Flore County: +3.4%McClain County: +15.6%Woodward County: -2.1%Ottawa County: +0.6%Choctaw County: -0.2%Cotton County: -0.6%Roger Mills County: -3.6%Washita County: -0.6%Coal County: +2.5%Pontotoc County: +0.6%Kiowa County: -2.8%Tillman County: -3.0%Ellis County: -3.9%Wagoner County: +12.1%Beaver County: -0.1%McCurtain County: -0.1%Kay County: -0.4%Pottawatomie County: +2.6%Osage County: +1.5%Comanche County: +0.2%Washington County: +2.8%Woods County: -0.2%Latimer County: +0.3%
Change 2020 to 2024
  1. < -1.1%
  2. < +0.0%
  3. < +2.2%
  4. < +3.3%
  5. ≥ +3.3%
no data

Orange pin: Delaware County internal point. Dark pin: Oklahoma City.

Internal point

Decimal
36.393400, -94.808200
DMS
36°23'36.24"N 94°48'29.52"W
UTM
15N 337836.4E 4029102.2N
Geohash
9ykx494yb
Plus code
868795VR+9P

Towns in Delaware County

4 incorporated places of 1,000+ people have residents in Delaware County, 10,888 people together, or 26% of the county. Each figure counts only the part of the town inside Delaware County; towns marked "part" extend into another county. The largest is Grove with 7,327.

  1. 01Grove7,327
  2. 02Jay2,474
  3. 03West Siloam Springs1,068
  4. 04Vinita (part)19
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Delaware County

The Census 2024 county adjacency file lists 7 neighbors for Delaware County, including 2 across a state line. The most populous is Benton County, AR, with 321,566 residents. Distances run between Census internal points in a straight line.

Distance to Oklahoma City and the nearest big city

Oklahoma City is 163.1 miles WSW of Delaware County's internal point in a straight line. The nearest place of 100,000 or more is Fayetteville, AR (population 103,134), 42.1 miles away. The nearest place of 10,000 or more is Siloam Springs, AR (population 20,075), 21.1 miles away.

Delaware County FIPS code

The FIPS code of Delaware County is 40041: state code 40 for Oklahoma plus county code 041. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $48,763.

Questions people ask

What is the population of Delaware County, Oklahoma?

The Census Vintage 2024 estimate for July 1, 2024 is 41,771. That is up 1,381 people (3.4%) from the July 2020 estimate of 40,390.

What is the FIPS code of Delaware County?

40041. The first two digits (40) are Oklahoma; the last three (041) identify the county.

What is the largest town in Delaware County?

Grove, with 7,327 residents inside Delaware County in 2024.

Which counties border Delaware County?

7 county-equivalents border it in the Census 2024 adjacency file: Benton County, AR; Cherokee County, OK; Mayes County, OK; Ottawa County, OK; McDonald County, MO; Adair County, OK; Craig County, OK.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.